The following kelvin temperatures to the Celsius and Fahrenheit scales:
[°F] = [K] × 9/5 - 459.67
[°C] = [K] -273
A) 400k
F = 260.33
C = 127
B) 95 k
F= -288.67
C = -178
C) 1.55*10^7K
F = 2.79 *10^7
C = 1.55*10^7
The Fahrenheit scale was first proposed by German physicist Daniel Gabriel Fahrenheit in 1724. Using a tube filled with mercury or alcohol, Fahrenheit used his three points to determine the scale. He set the point where water, ice, and ammonium chloride (a salt) are stable at his 0°F.
The Celsius scale or Celsius scale is a temperature scale based on the freezing point of water at 0°C and the boiling point of water at 100°C. The Fahrenheit scale is a temperature scale based on the freezing point of water at 32°F and the boiling point of water at 212°F. Fahrenheit is used primarily in the United States, while Celsius is used worldwide.
Learn more about The Fahrenheit scale here:- https://brainly.com/question/27849238
#SPJ4
two strings are adjusted to vibrate at exactly 200 hz. then the tension in one string is increased slightly. afterward, three beats per second are heard when the strings vibrate at the same time. what is the new frequency of the string that was tightened?
The new frequency of the tightened string is 201.5 Hz.
Let's assume that the strings both start out vibrating at 200 Hz.
The frequency of the tightened string must be slightly higher than 200 Hz in order to produce 3 beats per second. We can calculate the new frequency of the tightened string by using the formula:
Frequency of the tightened string = (frequency of the other string) +/- (3 beats/second ÷ 2)
so,
Frequency of tightened string = 200 Hz +/- (3 beats/second ÷ 2)
Frequency of tightened string = 200 Hz +/- 1.5 Hz
Therefore, the new frequency of the tightened string is 201.5 Hz.
For more questions like Frequency click the link below:
https://brainly.com/question/14928758?
#SPJ4
The figure shows a rod with two weights on the sides. You are going to rotate the rod at the center of the rod. If the mass of the rod is 30 g, each weight is 50 g, calculate the following.
a. Rotational inertia of the rod.
b. Rotational inertia of a weight (as a hoop).
c. Total rotational inertia.
a. The rotational inertia of the rod is 0.0004 kgm²
b. The rotational inertia of a weight is 0.0009025 kgm²
c. The total rotational inertia is 0.002205 kgm²
What is rotational inertia?Rotational inertia is a property of an object which shows its aboility to rotate about an axis.
a. What is the Rotational inertia of the rod?The rotational inertia of a rod is given by I = 1/12ML² where
M = mass of rod and L = length of rod.Given that
M = 30 g = 0.030 kg and L = 40 cm = 0.40 mSo, substituting the values of the variables into the equation, we have that
I = 1/12ML²
= 1/12 × 0.030 g × (0.40 cm)²
= 1/12 × 0.030 kg × 0.1600 m²
= 1/12 × 0.0048 kgm²
= 0.0004 kgm²
So, the rotational inertia of the rod is 0.0004 kgm²
b. What is the Rotational inertia of a weight (as a hoop).?The rotational inertia of the weight (as a hoop) is given by I' = 1/2mL' where
m = mass of weight and L' = distance of COM of weight from axisGiven that
m = 50 g = 0.050 kg and L = 19 cm = 0.19 mSo, substituting the values of the variables into the equation, we have that
I' = 1/2mL'²
= 1/2 × 0.050 g × (0.19 cm)²
= 0.025 kg × 0.0361 m²
= 0.0009025 kgm²
So, the rotational inertia of a weight is 0.0009025 kgm²
c. What is the Total rotational inertia?The total rotational inertia, I" = rotational inertia of rod + rotational inertia of both weights.
So, I" = I + 2I'
= 0.0004 kgm² + 2 × 0.0009025 kgm²
= 0.0004 kgm² + 0.001805 kgm²
= 0.002205 kgm²
So, the total rotational inertia is 0.002205 kgm²
Learn more about rotational inertia here:
https://brainly.com/question/27542432
#SPJ1
Which of the following examples describes a situation where a car is experiencing a net force?
A - The car is floating on a stationary boat.
B - The car is moving at constant speed.
C - The car is stopped on a hill
D - The car is making a gradual turn.
(Option C) The car is stopped on a hill. When a car is stopped on a hill, a net force is acting on the car due to gravity.
The example that describes a situation where a car is experiencing a net force is:Option C. The car is stopped on a hillWhen a car is stopped on a hill, it is experiencing a net force due to gravity. This force is the result of the downward pull of gravity and the car's brakes, which counteract the gravity and keep the car from rolling down the hill. The car is essentially in a state of equilibrium since the opposing forces of gravity and the brakes are equal and opposite, meaning the net force on the car is zero. However, if the brakes were to suddenly fail, then the net force on the car would be the downward pull of gravity, causing the car to roll down the hill.
Learn more about Net force: https://brainly.com/question/13370981
#SPJ4
an object is acted on by a single nonzero force of magnitude f. (a) is it possible for the object to have zero acceleration a? (b) is it possible for the object to have zero angular accelera- tion a? (c) is it possible for the object to be in mechanical equilibrium?
An object is acted on by a single non zero force of magnitude f will have zero acceleration , angular acceleration and also in mechanical equilibrium.
The force adds velocity per unit of time in the force's direction, accelerating the object in proportion to its inertial mass. The acceleration that results depends on the object's mass: the less massive the object, the greater the acceleration; the more massive the object, the less the acceleration. One kilogram of mass is affected by a force of one newton, which on Earth results in an acceleration of 9.8 meters per second. However, if the object weighs twice as much (2 kg), a force of 1 Newton only generates 4.9 m/s2, or half as much acceleration.The initial motion of the object is altered by this force in accordance with the force. When this force is applied for the first time to an object that was at rest, the object accelerates in the force's direction. When a force is applied to an object that is already moving at some speed in a particular direction (and there is no other force at that time), depending on how the force's direction compares to the direction of motion already being carried out, the object's velocity will either increase or decrease.To study more on mechanical equilibrium -
https://brainly.com/question/14246949
#SPJ4
how does the solar nebula theory explain the significant density difference between the terrestrial and jovium planets
Because different materials originate at various distances from the sun, different densities develop at various distances.
How do the densities of the terrestrial and Jovian planets compare?Because Jupiter is completely formed of gas, it has a far lower density than terrestrial planets like Earth and is thus more like the sky above you than the earth below you in terms of structure.The density of a planet depends on its make-up. In contrast to the four outer planets, the four inner terrestrial planets are denser. Rock that is hard and thick makes up the majority of the inner planets. Since gas makes up the majority of the outer planets, their total density is lower.According to the solar nebular theory, a nebula cloud comprised of a collection of gas and dust is what causes our solar system to develop. The sun, planets, moons, and asteroids are thought to have all originated from a nebula at around the same time, 4.5 billion years ago.Learn more about solar nebula theory refer to :
https://brainly.com/question/3626189
#SPJ4
Wave a carries more energy than wave b has a smaller ____than with a
Wave a carries more energy than wave b. Wave b has a smaller amplitude than wave a.
Those waves carry an amount of energy that can be measured. The energy in a wave is determined by two variables. One is amplitude, which is the distance from the rest position of a wave to the top or bottom. Large amplitude waves contain more energy. Wave A has greater intensity and transfers more energy. Wave B has greater intensity and transfers more energy. Waves that require matter to transfer energy are mechanical waves. The matter through which a mechanical wave travels is called a medium. A mechanical wave travels as energy is transferred from particle to particle in the medium. There are two kinds of mechanical waves. The greater the amplitude of the wave the greater the wave's energy. ... A wavelength will travel only as long as it has the energy to carry. Gamma rays
Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. Electromagnetic waves cause oscillations in electrical and magnetic fields. It is important to remember that all waves transfer energy but they do not transfer matter. For example, if a ball is placed on the surface of a pond when ripples move across it, the ball will move up and down but not outwards with the wave.
Learn more about Wave Energy-Amplitude Relationship here:-
https://brainly.com/question/15849416
Describe P-waves and S- waves and how they are different
Answer:
P-waves and S-waves are types of seismic waves that are generated during an earthquake. Seismic waves are waves of energy that travel through the Earth's interior and can be detected by seismometers.
P-waves, also known as primary waves or pressure waves, are compressional waves that move through the Earth by alternately squeezing and stretching the material through which they pass. They can travel through solid, liquid, and gaseous materials, and are the fastest type of seismic wave. P-waves are often the first waves to be detected during an earthquake, and are used to locate the epicenter of the earthquake.
S-waves, also known as secondary waves or shear waves, are transverse waves that move through the Earth by causing the material through which they pass to vibrate at right angles to the direction of the wave. S-waves can only travel through solid materials, and are slower than P-waves. They are used to determine the depth and intensity of an earthquake, as well as the composition and structure of the Earth's interior.
One way to differentiate between P-waves and S-waves is by the way they move through the Earth. P-waves move in the same direction as the wave, while S-waves move at right angles to the direction of the wave. Another way to differentiate between the two types of waves is by their frequency and wavelength. P-waves have a higher frequency and shorter wavelength than S-waves.
Explanation:
What are the units used in F = ma?
Question 1 options:
A. Midichlorians for force, venator-class star destroyers for mass, and parsecs per second squared for acceleration.
B. Horsepower for force, pounds for mass, and miles per hour for acceleration.
C. Newtons for force, kilograms for mass, and meters per second squared for acceleration.
D. Foot pounds of torque for force, grams for mass, and kilometers per hour for acceleration.
Answer:
Newtowns for force , kg for mass , and meters per second
the 30 kg rod is released from rest when theta equal 0 degree. the spring is unstretched when theta equal 0 degree. find the angular velocity of the rod when theta equal 30 degrees. i
The angular velocity of the rod with some angle is 6.60rad/s.
Work Energy Theorem: It states that the work done by a force acting on an object is equal to the change in the kinetic energy of the object. H. W=Ki-KParallel Axis Theorem: The moment of inertia of a body about an axis parallel to the body is equal to the sum of the moments of inertia of the body about the axis through the center and the product of the body is the mass of the multiplied by the square of the distance between the two axes.I= lcom +Mx², where l is the total body moment of inertia, lcom is the moment of inertia about the center of mass, M is the mass, and x is the vertical distance from the output axis, center of gravity.[tex]g=\frac{3w^2}{4}[/tex]9.8=3 w²/4
w=6.60rad/s
To study more about angular velocity -
https://brainly.com/question/14769426
#SPJ4
if sunlight were green instead of white, the most comfortable color to wear on a cold day would be
If sunlight were green instead of white, the most comfortable color to wear on a cold day would be red color.
What is the radiation of light?
The radiation of light can be defined as an energy of light that travels in the form of electromagnetic waves.
Light absorption is a process by which light is absorbed and converted into energy.
The radiation of light is the opposite of absorption of light.
Black materials are known for their excellent absorption of sunlight while the white materials are known for their excellent reflection or radiation of sunlight.
In a color wheel, the white is the opposite of black light. Also the red light is the opposite of green light.
Thus, the color of material that will perfectly oppose the green light would be red color or light, because in the color wheel the opposite of white color is black and the opposite of green color is red color.
Learn more about color light here: https://brainly.com/question/684822
#SPJ1
what is the driver doing when they are holding their foot over top of the accelerator but not touching it?
Find the y component of the momentum , Pbefore,y, f the ball immediately before the collision. Express your answer numerically; to two significant figures_ View Available Hint(s) Azd pbefore;y kg m/s Submit Part B Find the y component of the momentum of the ball immediately after the table collision, thatis: just as it Is Express your answer numerically; to two signiticant
Y component of momentum before collision = -0.271 Kg m/s.
Y component of momentum before collision = - mv
Using Energy Conservation -
mgh = 0.5m[tex]v^{2}[/tex]
v= [tex]\sqrt{2gh}[/tex]
v = [tex]\sqrt{2*9.8*1.5}[/tex]
v = - 5.42 m/s
Y component of momentum before collision = - 50×[tex]10^{-3}[/tex] ×5.42 Kgm/s
Y component of momentum before collision = -0.271 Kg m/s
Momentum is made of the mass of a particle and its speed. Momentum is a vector amount; i.e., it has both value and path. Isaac Newton's second regulation of motion states that the time charge of the exchange of momentum is the same as the pressure acting on the particle. See Newton's laws of motion.
In Newtonian mechanics, momentum (greater in particular linear momentum or translational momentum) is made from the mass and speed of an object. it is a standard mechanical amount. it's far a vector amount, possessing importance and direction. Momentum is a vector quantity: it has both significance and direction. because momentum has a path, it can be used to are expecting the resulting direction and speed of movement of objects when they collide. below, the basic residences of momentum are described in a single measurement.
To know more about Momentum visit here:
brainly.com/question/24030570
#SPJ4
The metric system is based on powers of ten. What is the advantage to such a system?
After metric unit conversion, a measurement in the metric system that is represented by a rational number stays that way.
Several concepts have been recognised as a result of the historical development of metric systems. A single basic unit of measurement expresses each of nature's essential dimensions. Instead of replicating actual artefacts, the definition of base units is increasingly being derived from natural principles. Units derived from the base units are used for values deriving from the system's fundamental base units; for instance, the square metre serves as the derived unit for area, a quantity deriving from length. These derived units are coherent, which implies that they don't include any empirical elements and solely include the products of the powers of the base units.
To know more about metric system, click here,
brainly.com/question/1837503
#SPJ4
what is the unstretched length of the spring (i.e., without the apple attached)? express your answer with the appropriate units.
According to the solve solution 2.167 m is the unstretched length of the spring .
What is the Spring-Hooke law?Hooke aimed to show how a spring's elasticity and the forces acting on it are related. Hooke's Law asserts that the elongation of a force is proportionate to the load which is supplied to it. As long as the load somehow doesn't above the material's elastic limit, a variety of materials will adhere to this rule.
Briefing:The pendulum's parameter is equal to half the bounce's angular frequency since we know that linear frequency and angular frequency are proportional, with ω = 2πf.
√[ g / L ] = ½√[ k / m ]
4g / L = k / m
L = 4mg / k
L= 4 (1.15 N) / (1.59 N/m)
L= 2.89 m
The length of the springtime with the apple connected is seen above. The spring extended far when you attached the fruit.
So, F = ks
⇒ s = F / k
s = mg / k
s= (1.15 N) / (1.59 N/m)
s = 0.723 m
The spring therefore had the following length before you attached the apple:
2.89 - 0.723 = 2.167 m
To know more about Spring visit:
https://brainly.com/question/14159361
#SPJ4
The complete question is -
An apple weighs 1.15 N. When you hang it from the end of a long spring of force constant 1.59 N/m and negligible mass, it bounces up and down in SHM. If you stop the bouncing and let the apple swing from side to side through a small angle, the frequency of this simple pendulum is half the bounce frequency. (Because the angle is small, the back and forth swings do not cause any appreciable change in the length of the spring.)
What is the unstretched length of the spring (i.e., without the apple attached)?
Which of the following correctly lists our "cosmic address" from small to large?
a. Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe
b. Earth, solar system, Local Group, Local Supercluster, Milky Way Galaxy, universe
c. Earth, Milky Way Galaxy, solar system, Local Group, Local Supercluster, universe
Our "cosmic address" from small to large are earth, solar system, milky way galaxy, local group, local supercluster, universe (option A)
The "smallest" is earth, it is the planet where we live and the third of the eight planets in the solar system.
The solar system is a collection of celestial bodies consisting of a star called the sun and all the objects that are bound by its gravitational force. And the milky way galaxy is the galaxy that contains our solar system. It is a barred spiral galaxy 100,000-120,000 light years in diameter containing 100-400 billion stars.
The local group is the group of galaxies that includes the milky way among others. It consists of more than 54 galaxies, including dwarf galaxies.
The local supercluster is one of the largest known cosmic structures in the universe. They are large, threadlike formations, with a typical length of 50 to 80 megaparsecs h-1, which form the boundaries between the great voids in the universe.
The universe is isotropic, the distance to the edge of the observable universe is approximately the same in all directions. That is, the observable universe is a spherical (spherical) volume centered on the observer, regardless of the shape of the universe as a whole.
Learn more about milky way galaxy here: https://brainly.com/question/13485795
#SPJ4
Answer:
Our "cosmic address" from small to large are earth, solar system, milky way galaxy, local group, local supercluster, universe (option A)
a projectile is thrown horizontally at 11.5 m/s. the projectile hits the ground 0.570 s later. what is the angle of impact the projectile makes with the horizontal ground?
The angle of impact of the projectile with the horizontal ground is 26°.
What is angle of impact in a projectile?A projectile is formed when an object is thrown in space and the only force acting on it is gravity. Angle of Impact also known as acute angle is made by the velocity vector and the normal to the target surface.
A very well known study of angle of impact is that of blood splatter analysis.
Calculation:Initial velocity of the projectile is
As the projectile is thrown horizontally the vertical component of the initial velocity is vxy=0
Horizontal component= vix= 11.5m/s
As gravitational acceleration is acting vertically downward let the vertical component of the velocity after time t=0.570s is,
vfy=0+gt
vfy=0+(0.981*0.570)
vfy= 5.59m/s
Horizontal component of the velocity does not change as there is no horizontal acceleration.
so the horizontal component of the final velocity is
vfx=vix=11.5m/s
if Ф be the angle with the horizontal then,
tan Ф=vfy/vfx
tanФ= 5.59/11.5
tanФ=0.486
Ф=tan∧-10.486
Ф=26°
So, the angle of impact of the projectile with the horizontal is 26°
To know more about projectile, click on https://brainly.com/question/24216590
#SPJ4
Find the acceleration
Answer:
a=5m/s
Explanation:
Forces going to the left: [tex]F_{3}[/tex]
Forces going to the right: [tex]F_{1}[/tex] and [tex]F_{2}[/tex]
To indicate the different directions, let the forces going to the left be negative, and the sign on forces going to the right be positive.
The total forces acting on the system are:
[tex]F_{1}[/tex] + [tex]F_{2}[/tex] + [tex]F_{3}[/tex]
100N + 80N - 30N = 150N
The overall force is therefore 150N going to the right (sign is positive). Now time to find the overall acceleration:
Force = mass * acceleration
150 = 30a
a=5m/s
In the Doppler effect it is important to distinguish between?
O frequency and speed. O speed and velocity. O speed and acceleration. O distance and displacement.
In the Doppler effect it is important to distinguish between
O Frequency and the Speed.
The Doppler effect tracks the change or variation in the frequency of a wave in response to the movement its source in a direction towards or away from it.
The distinction between frequency and and speed is very important in Doppler effect as the movement of the source towards or away from the wave cause the wave to spread out or bunch up depending upon the given area such that it leads to the change in the pitch of the wave.
The more the speed, i.e the faster that the source moves the greater would be the change created in the pitch.
Learn more about Doppler effect at:
brainly.com/question/29022708
#SPJ4
the escape speed for a rocket at earth's surface is ve (a) 2 v . what would be the rocket's escape speed from the surface of a planet with twice earth's mass and the same radius as earth?
The rocket's escape speed from the surface of a planet with twice earth's mass and the same radius as earth is √(2GM/r).
Escape speed with the speed at which the kinetic energy of the satellite is exactly equal to the negative amount of potential energy within the satellite/mass system. That is
1/2mv2 = |-GMm/r| which gives the escape speed ve = √(2GM/r)
The earth's surface escape speed is roughly 11.186 km/s. Accordingly, "an object needs have a starting velocity of at least 11.186 km/s to escape the gravity of the earth and fly to infinity."
The escape velocity vesc is expressed as vesc = Square root of√2GM/r,where G is the gravitational constant, M is the mass of the attracting mass, and r is the distance from the centre of that mass.
To learn more about Escape speed visit:https://brainly.com/question/28044195
#SPJ4
the figure (figure 1)shows three gaussian surfaces and the electric flux through each.
The electric flux through each gaussian was said to be q
what is electric flux ?
The electric flux is the amount of electric field that flows through a covered surface. According to Gauss's law, which is given by the equation, the electric flux through a surface is proportional to the charge inside the surface.
Фe=∅E x dA
=Qin/∈
The electrical flux is determined by the charges inside the closed path. Any flux caused by charges outside of the closed surface is zero.
Concerning the enclosed surface,
step 1
∅a=-q/∈o
q1+q3=-q------1
∅b = 3q/∈o
q1+q2=3q------2
∅c = -2q/∈o
q3+q2= -2q-------3
step 2
q1=3q-q2
q1+q3=-q
3q-q2+q3=-q
q3=q2=-4q-------4
eq3+eq4
q3+q2=-2q + q3-q2=-4q
2q3=-6q
q3=3q
step 3
q1=-q-q3
=-q-(-3q)
=2q
use this value in eq 2
q2=3q-q1
=3q-2q
=q
the electric flux through each was said to be q
To learn more about electric flux follow the given link:https://brainly.com/question/14730662
#SPJ1
Which of the following is one of the principles that the theory of relativity is based upon
The measurement of distance is the same for everyone.
The passage of time is the same for everyone.
The acceleration of gravity is the same for everyone.
The laws of physics (i.e. laws of nature) are the same for everyone.
c) The acceleration of gravity is the same for everyone, governs the theory of relativity.
The theory replaced a 200-year-old theory of mechanics principally developed by Isaac Newton and revolutionized theoretical physics and astronomy during the 20th century. It introduced ideas like simultaneity, kinematic and gravitational time dilation, length contraction, and 4-dimensional spacetime as a unified entity of space and time. Relativity brought us the nuclear age while also advancing our understanding of elementary particles and their basic interactions. Cosmology and astrophysics predicted remarkable astronomical phenomena like neutron stars, black holes, and gravitational waves with relativity.
To know more about this theory, click here,
brainly.com/question/24788435
#SPJ4
five molecules have speeds of 2.8 m/s, 3.2 m/s, 5.8 m/s, 7.3 m/s, and 7.4 m/s. their root-mean-square speed is closest to
The five molecules with speeds of 2.8 m/s, 3.2 m/s, 5.8 m/s, 7.3 m/s, and 7.4 m/s have a root-mean-square speed of 5.7 m/s.
The fact that
The square root of the total squared speeds of all individual gas particle or molecules speeds is known as the root mean square speed.
step 1
determine the square of the velocity of particular particles
2.8²----> 7.84
3.2²——>10.24
5.8²----> 33.64
7.3²----> 53.29
7.4²---> 54.76
average=[7.84+10.24+33.64+53.29+54.76]/5-----> 159.77/5----> 31.954
step 2
determine the square root of the average
√31.954=5.65
therefore
the solution is
5.7 m/s
The value of the square root of the sum of the squares of the stacking velocity values divided by the quantity of values is the root-mean square (RMS) velocity. The RMS velocity is the speed of a wave traveling along a certain ray path across strata beneath the surface that have varying interval velocities.
Learn more about Molecules here:
https://brainly.com/question/19922822
#SPJ4
the efficiency of a solar cell is defined as the percentage of the total energy input that does useful work.
The proportion of the total energy input that is put to use in a solar cell is known as its efficiency, so this is a true statement.
What is a Solar cell?A solar cell, also known as a photovoltaic cell, is a type of electronic device that uses the photovoltaic effect to convert light energy directly into electricity.
What is Energy?Energy is the ability to perform work. It could exist in several different forms, such as potential, kinetic, thermal, electrical, chemical, radioactive, etc. Additionally, there is heat and work, that is energy being transferred from one body to another. It is always assigned based on its nature once it has been transmitted. Thus, heat transmitted may manifest as thermal energy while work performed may result in mechanical energy.
Hence, the proportion of the total energy input that is put to use in a solar cell is known as its efficiency, so this is a true statement.
To know more about energy, check out:
https://brainly.com/question/13881533
#SPJ4
ultraviolet radiation falls in the wavelength region of to meters. what is the energy of ultraviolet radiation that has a wavelength of m? energy
the energy of ultraviolet radiation that has a wavelength is 6.95*[tex]10^{-19}[/tex] kj/photon
calculation :
1.E =hc/λ
λ = hc/E
= [tex]\frac{6.6626*10^{-34}*3*10^{8} }{1.99*10^{-19} }[/tex]
= [tex]1.0*10^{-8}m[/tex]
2 . E =hc/λ
λ = hc/E
= [tex]\frac{6.6626*10^{-34}*3*10^{8} }{3.97*10^{-19} }[/tex]
= 501 nm
3 . λ = 286 nm
E =hc/λ
= [tex]\frac{6.6626*10^{-34}*3*10^{8} }{286}[/tex]
= 6.95*[tex]10^{-19}[/tex] kj/photon
In physics, energy is the quantitative property transmitted to the body or physical system, perceived in the performance of work and in the form of heat and light. Energy is Conserved - The law of conservation of energy states that energy can be transformed into form, but cannot be created or destroyed. The unit of measure for energy in the International System of Units (SI) is the joule (J).
Common forms of energy include the kinetic energy of moving bodies, the potential energy stored in bodies (due to their position in the field, etc.), the elastic energy stored in fixed bodies, the chemical energy associated with chemical reactions, Radiant energy carried by electromagnetic radiation and internal energy contained in thermodynamic systems. All living things absorb and emit energy all the time.
Learn more about Energy here : https://brainly.com/question/13881533
#SPJ4
a satellite orbiting earth at an orbital radius r has a velocity v. what would the velocity be if the satellite is moved to an orbital radius of 6r?(1 point)
The velocity of the satellite is V = [tex]\frac{V}{\sqrt{6} }[/tex]
What is orbital velocity?The speed at which one body orbits the other body is known as the orbital velocity. The term "orbit" refers to an object's consistent circular motion around the Earth. The distance between the object and the earth's center determines the orbit's velocity.
In contrast to the orbital velocity, the angular velocity of the revolving disc is constant at all mass sites (of which the disc is composed). The orbital velocity, on the other hand, rotates the disk in a different direction at each site and is tangential to the circular orbit.
We can derive the mathematical equation of orbital velocity :
v = [tex]\sqrt{\frac{GM}{r} }[/tex]
where, v = orbital velocity
G = gravitational constant
M = mass of the satellite
r = radius
V = [tex]\sqrt{\frac{GM}{6r} }[/tex]
V = [tex]\sqrt{\frac{1}{6} }[/tex] × [tex]\sqrt{\frac{GM}{r} }[/tex]
Thus we can write it as:
V = [tex]\frac{V}{\sqrt{6} }[/tex]
To know more about satellite you may visit the link:
https://brainly.com/question/16040381
#SPJ4
a car accelerates uniformly from rest to 25 m/s over a distance of 30 meters. what is the acceleration of the car?
Answer:
10.4 m/s²
Explanation:
use the formula: V² = Vo² - 2aΔx
Plug in the known values then solve for a. Vo = 0 because the car starts from rest.
(25 m/s)² = 0 + 2a(30m)
a = (625 m²/s²)/(2)(30m) = 10.4 m/s²
the amplitude of a lightly damped oscillator decreases by 3.0% during each cycle. what percentage of the mechanical energy of the osc
The percentage of the mechanical energy of the oscillation is 6%.
The amplitude of a lightly damped oscillator decreases by 3.0% during each cycle. we need to calculate the percentage of the mechanical energy of the oscillation.
Since the energy is proportional to the amplitude squared, we find the fractional change (assumed small) is,
(E' - E)/E ≈ dE/E = dx²/x² = 2xdx/x² = 2dx/x
Thus, if we approximate the fractional change in x as dx/x
, then the above calculation shows that multiplying this by 2 should give the fractional energy change. So, if x decreases by 3%, then E must decrease by 6.0%
Therefore, if the the amplitude of a lightly damped oscillator decreases by 3.0% during each cycle the percentage of the mechanical energy of the oscillation is 6%.
To learn more about oscillation refer here
https://brainly.com/question/26449711
#SPJ4
As blood flows away from the heart, how does overall blood pressure in vessels change? Why?
a. Blood pressure decreases because blood vessels are passive and cannot exert any force on the moving blood.
b. Blood pressure increases because vessel diameter narrows with distance from the heart, which increases the force on the blood.
c. Blood pressure increases. Otherwise, the blood would not flow up toward the heart.
d. Blood pressure decreases because of the effects of friction between the vessel walls and the moving blood.
Answer:
The correct answer is option d
Explanation:
because blood pressure decreases as blood moves away from the heart, which is why the heart needs to generate enough pressure so that blood can return to the heart. The pressure drops due to friction between the vessel's walls and the moving blood which exerts a force opposite to the flow of blood, thereby slowing it down. Option a is incorrect because some blood vessels like elastic arteries are not passive and can actually exert a force on the moving blood to help maintain pressure, nevertheless, the blood pressure does decrease due to frictional forces exerted by the vessel walls. Options b and c are incorrect because blood pressure decreases once it leaves the heart.
5. Gravity is an attractive force betweenA. all massive objects.B. Earth and objects on Earth.C. Earth and Moon, and objects on Earth.D. all objects everywhere.
Gravity is an attractive forces between d)all objects everywhere. So, correct option is d.
In this universe every objects tries to attract other object towards itself. Even moon and earth has gravitational force between each other. Tides in ocean and sea are possible due to gravitational force of moon on earth. Moon revolves around earth due to reason of gravitational force. Gravitational Force is considered as an attractive force. The gravitational Force is given by the formula
F = (GM₁M₂)/r₂
In this earth massive objects exert gravitational force on smaller objects too, but the difference is that the gravitational force acting between the objects are very small in range, due to which we are not able to feel it.
Hence, correct option is d.
To know more about Gravity, visit here:
https://brainly.com/question/4014727
#SPJ4
for the following circuit you ultimately want to measure the power dissipation of the 2.0
Circuit you ultimately want to measure the power dissipation of the 2.0 is The sum of the voltage drops across each resistor is zero.
Apply the Kirchhoff’s Voltage law to the above two loops.
For Loop 1
2 - i1 + 2i2 - 4 - i1 = 0
i2 - i1 = 2
For loop 2
4 - 2i2 + i3 - 4 + i3 = 0
i3 = i2
The sum of the voltage drops across each resistor is zero. The sign of the higher potential is taken as positive and the sign of the lower potential is taken as negative.
The sum of the voltage drops across each resistor is zero. The sign of the higher potential is taken as positive and the sign of the lower potential is taken as negative.
The voltage drop in an electrical circuit is the reduction in electrical potential along the current's course. Voltage drops across conductors, contacts, and connectors are undesirable because they result in energy loss from the source's internal resistance, conductors, and contacts. The amount of power available to be transformed in that load to another useable form of energy is inversely correlated with the voltage drop across the electrical load.
For instance, an electric space heater might have a resistance of ten ohms, whereas the wires that power it might have a resistance of only two ohms, or about 2% of the circuit's total resistance. This indicates that 2% or more of the supplied voltage is wasted in the wire itself. Voltage drops could be too great.
Learn more about voltage drops here:
https://brainly.com/question/28982001
#SPJ4
