Given that the boulder's pe value is 4037.6, the energy it possesses immediately before impact must be equal to the energy it had at the time it began. In this manner, the bolder's potential energy
Kinetic energy: a definition and some instancesWhen a particle, object, or collection of particles move, kinetic energy, the energy of motion, is demonstrated. Kinetic energy is the energy that is released when a moving object moves, such as when a person walks, a ball is thrown, food falls off a table, or a particle is charged by an electric field.
Kinetic energy is produced by what?Potential energy that has been set into motion by factors like elastic forces or gravity can then be converted into kinetic energy. The power behind motion is called kinetic energy. An object's kinetic energy increases as force is applied to it, which causes it to move faster.
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Nuclear power is generated by using Uranium as fuel to produce
nuclear fission. Once the nuclear fission is present, the heat is
combined with the water to make steam. This steam then turns the
Answer:
turbine
Explanation:
Turbine that turns the generator
A particle starts from rest and is acted on by a net force that does work at a rate that is proportional to the time t. The speed of the particle is proportional to:.
The speed of the particle is proportional to = √t
Work = the change in kinetic energy = 1/2 mv2
If work is proportional to time
W = t
1/2 mv2 = t
v2 = t
v (speed) = √t
Speed is the time rate at which an object is shifting along a path, even as speed is the fee and route of an item's movement. Positioned every other manner, speed is a scalar value, even as pace is a vector.
Velocity (or price, r) is a scalar quantity that measures the gap traveled (d) over the alternate in time (Δt), represented via the equation r = d/Δt.
The Italian physicist Galileo Galilei is credited with being the first to measure speed by considering the gap blanketed and the time it takes. Galileo described pace as the gap covered in line with unit of time.
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why is the voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor?
The voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor because the voltage across the resistor and capacitor are not in phase.
Current through the resistor = Current through the capacitor
VR / R = VC / XC
3 / 550 = 2.7 / XC
XC = 494.99 Ω
XC = 1 / 2 π f C
XC = Capacitive reactance
f = Frequency
C = Capacitance
C = 1 μ F = 1 * [tex]10^{-6}[/tex] F
f = 2 XC / π C
f = 2 * 494.99 / 3.14 * [tex]10^{-6}[/tex]
f = 315.28 * [tex]10^{6}[/tex] Hz
Therefore,
a ) The frequency of the ac voltage source = 315.28 * [tex]10^{6}[/tex] Hz
b ) The voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor because the voltage across the resistor and capacitor are not in phase.
The given question is incomplete. The complete question is:
An ac voltage source is connected in series with a 1.0 μ F capacitor and a 550 Ω resistor. Using a digital ac voltmeter, the amplitude of the voltage source is measured to be 4.0 Vrms, while the voltages across the resistor and across the capacitor are found to be 3.0 Vrms and 2.7 V rms, respectively. a ) Determine the frequency of the ac voltage source. b ) Why is the voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor?
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The magnitude, m, of an earthquake is represented by the equation m=23logee0 where e is the amount of energy released by the earthquake in joules and e0=104.4 is the assigned minimal measure released by an earthquake. which shows a valid step in the process of calculating the magnitude of an earthquake releasing 2.5â‹…1015 joules of energy?
The magnitude of an earthquake releasing 2.5×10¹⁵ joules of energy is
9.95 × 10¹⁰.
By magnitude, what did you mean?In physics, magnitude is simply defined as "distance or quantity." It displays an object's size or motion in either an absolute or relative sense. It is a way of describing the size or scope of something. In physics, magnitude typically refers to a length or a size.
The most common way to gauge the size of an earthquake is by its magnitude. It serves as a gauge of an earthquake's sole source's size. Therefore, it is the same no matter how or where you perceive it, and the following calculation can be described as follows:
Given formula
Magnitude M = 2/3 log E/E₀
The least amount of energy released by such an earthquake must be allocated to, where E is the energy released in Joules and E₀ = [tex]10^{4.4}[/tex]
earthquake releasing 2.5×10¹⁵ joules of energy
M = 2/3 log E/E₀
M = 2/3 log 2.5×10¹⁵/[tex]10^{4.4}[/tex]
M = 9.95 × 10¹⁰.
The magnitude of an earthquake releasing 2.5×10¹⁵ joules of energy is
9.95 × 10¹⁰.
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What information could NOT be provided by a criminal profiler?
OA. the name of the suspect
OB. the gender of the suspect
OC. the possible next moves of the suspect
O D.
the history or childhood trauma of the suspect
Answer: A. The name of the suspect
Explanation: Hope this helps!:)
The name of the suspect could not be provided by a criminal profiler. So, the correct option is A.
What is Criminal profiler?Criminal profiling is also referred to as offender profiling, is a method of investigation used by law enforcement to find potential suspects and by investigators to connect crimes that might have been committed by the same person.
Criminal profilers are highly skilled professionals that focus on locating the individuals responsible for heinous crimes. Along with forensics teams and other law enforcement personnel, profilers work to identify suspects using methods including in-depth psychological understanding and statistical probability.
The FBI defines the criminal profiling procedure as a method for locating the perpetrator of a violent crime by determining the personality and behavioural traits of the offender based on an examination of the crime that was committed.
Thus, the correct option is A.
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A cyclist pedals for 30.0 min at 15.0 km/h. the metabolic power for this exercise is 480.0 w. how much total chemical energy is transformed in this exercise?
The total chemical energy transformed in this exercise is 580 kJ.
Chemical energy is the strength of chemical substances this is launched after they undergo a chemical response and transform into different substances. a few examples of garage media of chemical power consist of batteries, meals, and gas.
Chemical power is strength stored within the bonds of atoms and molecules. Batteries, biomass, petroleum, natural fuel, and coal are examples of chemical electricity. Chemical energy is converted to thermal strength whilst people burn wood in a hearth or burn gasoline in a vehicle's engine.
Calculation:-
time, t = 20min = 1200s
average metabolic power of cyclist = 480 W
metabolic energy can be calculated as
ΔE = PΔt =480 *1200 = 576000 J ≈ 580000 J = 580 kJ
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A car goes around a curve of radius r at a constant speed v. Then it goes around the same curve at half of the original speed. What is the centripetal acceleration on the car as it goes around the curve for the second time, compared to the first time?.
The new centripetal force becomes one fourth of the original force.
What is centripetal acceleration ?
Centripetal acceleration, the acceleration of a body in a circular orbit. Since velocity is a vector quantity (that is, it has both magnitude, velocity, and direction), as an object moves along a circular path, its direction and velocity constantly change, resulting in acceleration. Acceleration is radially towards the center of the circle. The centripetal acceleration ac has a magnitude equal to the square of the body velocity v along the curve divided by the distance r from the center of the circle to the moving body. That is, ac = v2/r. Centripetal acceleration has units of meters per square second. Force which causes this acceleration is also directed toward the center of the circle and is called the centripetal force.
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As you approach a steady light source, the wavelength of the emitted light appears.
When you approach a steady light source, the wavelength of the emitted light appears longer.
Only a small portion of the electromagnetic radiation spectrum is visible light, yet it contains the only band of frequencies to which the rods and cones of the human eye are responsive. The wavelengths that people can generally see fall within a fairly small range, roughly between 400 and 700 nanometers. Due to the presence of particular nerve endings that are sensitive to this frequency range in the eyes, humans are able to view and react to stimuli produced by visible light. The rest of the electromagnetic spectrum, however, is unseen.
Electromagnetic radiation is emitted from a wide range of sources, and these sources are often grouped based on the particular spectrum of wavelengths they produce.
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According to newton’s first law of motion, an object in motion will stay in at the same speed and direction unless acted upon by what kind of force?.
The vertical impulse by the lift force during this time is 4.15 by minutes for newton's law of motion.
Explanation-
We have a demon That there is a force of 52 down cause of 15. Right? This is what we have you in the questions and acting on the bill. Be both masked by Graham of Mars five g. No. In the meantime. And travelers given that the time and develop acting on this fourth, you should humanists. But we need to find the impulse England's. They seem to not advise you actually. This is what we need to find. So we know that false change in momentum much time. So basically impulses change momentum, but you find impulses changing moment also jay so G is false in campaign so we can put forth here. The forces to do time 59 1 dime. That's Spanish for -5. This was with 15 to 10 days to four minutes, five Newton and two times three seconds Volunteers. They will get 15 into 10 days to the R -4. 15 10 by minus for Newton second law.
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A magnet that is positively charged on one end and negatively charged on the other end is an example of.
A magnet that is positively charged on one end and negatively charged on the other end is an example of D. polarity.
In the field of science, polarity can be described as a phenomenon in which the same substance has different charges in it. The electrical charges are separated inside the same substance or molecule as a result of polarity.
One part of a substance will be negative charges whereas the other will be positively charged as a result of polarity.
A magnet is an example of a substance that can easily gain or lose polarity. When the charges inside a molecule are separate at both ends, we will say that the magnet has gained polarity.
Although a part of your question is missing, you might be referring to this question:
A magnet that is positively charged on one end and negatively charged on the other end is an example of
A cohesion.
B adhesion.
C gravity.
D polarity.
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Which phrase is the best example of potential energy? responses a ball rolling down a hill a ball rolling down a hill a ball sitting at the bottom of a hill a ball sitting at the bottom of a hill a ball sitting at the top of a hill.
" a ball sitting at the top of a hill " is the best example of potential energy
Potential energy is exits when an object is in stable equilibrium condition In which an object is in rest and not moving at a certain height .
" a ball rolling down a hill a ball rolling " in this option ball is not at rest , hence posses a kinetic energy
" a ball sitting at the bottom of a hill " , the ball is at bottom
hence , both are incorrect options
and the correct option will be " a ball sitting at the top of a hill "
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A ballistic pendulum is a device often used for measuring the velocity of a projectile. Assume to projectile fully embeds itself in the pendulum. If the projectile mass is 25 grams, the pendulum mass is 2. 5 kg, and the vertical displacement of the pendulum after the collision is 14 cm, find the velocity of the projectile just prior to the collision. (hint: relate kinetic energy to potential energy).
The velocity of the projectile just prior to the collision would be 167.31 m/s.
with respect to the Principle of Energy Conservation, we can write
U1 + K1 = U2 + K2
where U1 and U2 are the Initial and final gravitational potential energies.
and K1 and K2 are the Initial and final kinetic energies.
Putting all the appropriate values of the gravitational potential energy and kinetic energy, we get
(m+M)g (y2 - y1) = (1/2) x (m+M) x ([tex]V1^{2} - V2^{2}[/tex])
or, g(y2-y1) = (1/2) x ([tex]V1^{2} - V2^{2}[/tex])
so , v1 we can write
v1 = [tex]\sqrt{v_{2} ^{2} + 2 * g * (y2-y1)}[/tex]
v1 and v2 are the initial and final speed
Now, since the collision is inelastic collision, so we can write
where,
[tex]mv_{0p}[/tex] is Velocity of the project prior to the collision, measured in meters per second.
[tex]Mv_{0B}[/tex] Velocity of the ballistic pendulum prior to the collision, measured in meters per second.
As we know that from quetion, v2 = 0 ; g = 9.8 , y2-y2 = 14cm = 0.14 m , m = 0.025 kg, M = 2.5kg and v0B = 0 ,
so putting all values
v1 = [tex]\sqrt{0^2 + 2 * 9.8 * 0.14}[/tex]
v1 = 1.6565 m/s
again solving for [tex]v_{0p}[/tex] ,
[tex]mv_{0p}[/tex] = [tex]= (m+M) v1 - Mv_{0B}[/tex]
Vop = 167.31 m/s
Hence the velocity of the projectile just prior to the collision is 167.31 m/s.
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help with this question Below shows a swinging pendulum in three different locations. Label each location with the PE and KE bar graphs that show the relative amount of each.
First position - both Kinetic and potential energy, Second position - only kinetic energy, and Third position - Only potential energy.
The kinetic energy of an item is the power that it possesses because of its movement. Its miles are described as the paintings needed to accelerate a frame of a given mass from relaxation to its said velocity. Having won this energy all through its acceleration, the frame continues this kinetic power except for its speed modifications. the kinetic energy of an item is the energy that it possesses because of its movement.
It is described as the work needed to accelerate a body of a given mass from relaxation to its stated speed. Having received this electricity in the course of its acceleration, the body continues this kinetic electricity unless its speed modifications.
Potential energy is the power held with the aid of an item due to its function relative to other items, stresses inside itself, its electric fee, or different elements.
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determine the magnification if a 2.0-cm-high object is situated 11.6 cm in front of a concave mirror that has a radius of curvature of 10.0 cm.
The computed magnification value is 0.11379
Optics Theory-Magnification is the term for the increase in image size brought about by spherical mirrors that are concave or convex in relation to the object size. Magnification is also equal to the ratio of the image's distance from the mirror's pole to the distance of the object as measured from the pole of the mirror.The object's height is always interpreted as positive because it is always above the primary principal axis. But depending on the type of image created in the case of any selected mirror, the sign for the image height may change. The height of the created virtual images should be considered positive, whereas the height of the created real images should be considered negative.Mathematics -u=-11.6cm
f=R/2=10/2=5cm
But as per sign convention f=-5cm
h=2cm
[tex]\frac{1}{v}+\frac{1}{u}=\frac{1}{f}[/tex]
Calculation-1/v=-1/5+1/11.6
=-0.2 +0.08620689
=-0.11379
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What type of forces is acting on an object that prevents the object from moving?.
. a boat can travel in still water. (a) if the boat points directly across a stream whose current is what is the velocity (magnitude and direction) of the boat relative to the shore? (b) what will be the position of the boat, relative to its point of origin, after 3.00 s?
a) The velocity of the boat relative to the shore is 3.40 m/s and b) The position of the boat relative to its point of origin after 3s is 10.20m.
Here it is given that the speed of the boat (x) = 2.20m/s
The speed of the stream current (y) = 1.20m/s
a) We have to find the velocity of the boat relative to the shore.
The speed of the boat = x + y
= 2.20 + 1.20
= 3.40m/s
b) Now we have to find the position of the boat after 3s
The formula for speed:
Speed = Distance/ Time
distance = speed × time
speed = 3.40m/s
Time = 3s
distance = 3.40 × 3
= 10.20 m
Therefore we get a) speed as 3.40m/s and b) distance as 10.20m.
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although fusion is preferred, why are all commercial nuclear power plants using energy from fission?
All commercial nuclear power plants are using energy from fission because the nuclear fission reactions are controllable.
In the nuclear power plants energy is obtained by nuclear fission rather than nuclear fusion because in Nuclear Fission reactions are controllable reactions. We can increase or decrease the amount of the particles undergoing season in a nuclear reaction.
On the other hand nuclear fusion reactions are uncontrollable in nature. Basically they are the reactions of two hydrogen molecules fusing with each other in order to form a Helium nucleus this results in enormous amount of energy but we cannot keep a cap on the nuclear fuel undergoing fusion.
This is why all the commercial nuclear power plants are using energy from fission.
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What is the de broglie wavelength (in meters) of a 148 g baseball thrown at a velocity of 35. 1 meters per second?.
By converting the 400 nm wavelength of violet light into meters we are get 4.0.10^-7.
What is wavelength?
wavelength can be defined as the distance between two successive crests or throughs of a wave. It is measured in the direction of the wave.
The wavelength of light defined as the distance between the two successive crests or throughs of the light wave.
The wavelength of light is the distance between corresponding point in two adjacent light cycles and the frequency.
Convert the unit for 400nm-
4.0.10^-7
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how much energy would microraptor gui have to expend to fly with a speed of 10 m/sm/s for 1.0 minute?
Much energy as would Microraptor gui have to expend to fly with a speed of 10 m/s for 1.0 minutes is 486 J.
The first step is to find the energy that Microraptor must release to fly at 10 m/s for 1.0 minutes. The energy that Microraptor must expend to fly can be found using the relationship between Power and Energy.
P = E/t
Where:
P = power (W)
T = time (s)
Now, a minimum of 8.1 W is required to fly at 10 m/s. So, the energy expended in 1 minute (60 seconds) is
P = E/t
E = P x t
E = 8.1 x 60
E = 486 Joules
Thus, the energy that Microraptor must expend to fly at 10 m/s for 1.0 minutes is the 486 J.
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Karl measures the current through a resistor. What else will he need to measure in order to work out its resistance? give the full name, not the symbol.
Answer:
Explanation:
The voltage across the resistor
then ohms = voltage / current
If you set the air pressure of the tank to 35 psi for a leak test and find that 24 hours later the tank's pressure has increased, what could've happened?
If you set the air pressure of the tank to 35 psi for a leak test and find that 24 hours later the tank's pressure has increased, the thing that could've happened is that there is still a little leak that lets whatever that is inside (such as water) the tank to seep out into the tank's air space.
What is the water pressure about?You may be having issues with your well tank's pressure charge if you've observed that your submersible well pump is turning on and off more frequently or that you're having trouble getting water out of your tank.
Low well tank pressure can harm your well pump, lower the water pressure in your home, and eventually lead to the early failure of your tank. It's crucial to drain the tank and inspect the system's integrity right away if you think your well pressure tank is losing pressure.
Your pressure switch is most likely set to 40/60 if your pump starts up at 40. Turn off the faucet and wait for the well pump to stop before continuing. To find out, check the pressure switch.
Hence, Your pressure switch is most likely set to 40/60 if your pump starts up at 40. Turn off the faucet and wait for the well pump to stop before continuing. To determine the pressure at which this happens, check the pressure switch. This is your tank's second number, often known as the cut-off pressure.
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the actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the pool from above. how deep will it appear to be? the index of refraction for water is 1.33.
The objects appear to be closer to the surface than they actually are.
Only when those rays hit our eyes do we perceive an object. In this image, the fish's ray refracts before it reaches the viewer's eye. As a result, the observer sees the fish's apparent depth, Da, at that distance from the surface. Contrarily, fish perceive objects that are farther away than they actually are. Light refraction is the cause of each of these outcomes.Light refracts away from its normal path as a result. According to the incident ray's angle, it doesn't refract at one point and instead travels parallel to the mediums' boundaries. This is the critical angle that we refer to. The incident ray undergoes total reflection rather than refraction if the angle is greater than the critical angle. To find the equation for the critical angle, we now apply Snell's law of refraction.To find more about Snell's law of refraction-
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Arrange the following elements in order of expected increasing electronegativity values: barium (56), beryllium, calcium, magnesium.
The correct order of expected increasing electronegativity values will be
Barium
Calcium
Magnesium
Beryllium
Electronegativity is a chemical property that describe tendency of an atom to attract electrons .
As we know that all the elements mentioned above are from group 2
In group , as we go down , the electronegativity will decrease as size of the atom increases and as the size increases tendency of nucleus to hold electron get decrease . Hence , electronegativity will decrease as we go down the group
the correct order will be
Barium
Calcium
Magnesium
Beryllium
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an athlete swims the length of a 52.0-m pool in 15.8 s and makes the return trip to the starting position in 21.0 s. determine her average velocity
ˉv=dt where d is the overall displacement, t is the time it takes to complete the displacement, and v is the average velocity of the item. As a result, the average velocity is typically zero when the overall displacement is zero.
The change in position divided by the distance traveled is how average velocity is calculated. For instance, someone traveling at an average speed of 40 miles divided by 40 minutes, or 1 mile per minute, is traveling 20 miles north and then 20 miles south (60 mph). However, average velocity takes into account total displacement rather than just distance.
Average Speed = TT/TD (20/50 = 2.5 m/sec) (b) Average Speed = TT / TD = 22 / 50 = 2.2727 m/sec (c) Average Speed = TT / TD = 20 + 22 / 50 + 50 = 2.38 m/sec
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At what angle should the roadway on a curve with a 45 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy (and the frictional force is zero)?.
At an angle of 18.26 ° the roadway on a curve with a 45 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy
angle of banking of the car going round the curve = tan (theta) = [tex]v^{2} / rg[/tex]
v = speed
r = radius
g = acceleration due to gravity
substituting the values
tan (theta) = [tex]12^{2}[/tex] / 45 * 9.8 = 0.33
theta = [tex]tan^{-1}[/tex] (0.33)
= 18.26 °
At an angle of 18.26 ° the roadway on a curve with a 45 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy .
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on the cosmic calendar, which compresses the history of the universe into a single year, about when did life arise on earth?
On the cosmic calendar, life arise on earth about 300,000 years ago
The Cosmic Calendar is a method to visualize the chronology of the universe, The Cosmic Calendar is a scale in which the 13.7 billion year lifetime of the universe is mapped onto a single year. T
Earth formed in early September on the cosmic calendar. about 300,000 years ago in actual time, that anatomically modern humans, Homo sapiens, arose for the first time.
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The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to.
Its Heisenberg uncertainty principle is mostly to blame for a little but significant discrepancy between these three s three P & three D printers.
By what method did Einstein refute the Heisenberg uncertainty principle?The momentum on Bob's particle can then be properly stated without relying on Alice's measurement, according to Einstein, assuming no supernatural activity. Now we have Bob's particle, which defies quantum Heisenberg Uncertainty Principle by possessing accurate values for both position and momentum at the same time.
How significant is the Heisenberg principle?According to their beliefs, everything might be accurately known with the aid of mathematics and the appropriate tools. Heisenberg, however, proved that every measurement has a certain amount of randomness and uncertainty and that this is a natural aspect of how the universe functions.
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How may the stability of a body be increased?
Answer:
The functionality of a body can be restored with the help of appropriate flexibility and strengthening. Once everything is in place, you can exercise those muscles specifically for balance to put them to the test. Your body may then adjust, improving your general stability as you get better at completing those activities.
Answer:
The stability of an object is increased when the lower the centre of gravity is.
So we should try to lower the centre of gravity.
A large semitrailer truck and a small car have equal momentum. How do their speeds compare?.
A large semitrailer truck and a small car have equal momentum. How do their speeds compare?
The truck has a much lower speed than the car.
what is speed?
We've all heard of speed, and when we're driving quickly, we're conscious of it. We may check the speed of our vehicle while we go from point A to point B by looking out the window. No matter how tiny or large, how heavy or light it is, if something is moving, it has speed. But what precisely is speed, how does it operate, and what are some instances of speed in daily life?
As the truck has the highest weight and the small car was having the less weight when compared to the truck,
the truck has the lower speed than the small car
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What is the angle formed between the vectors of centripetal acceleration and centripetal force?.
Angle formed between the vectors of centripetal acceleration and centripetal force is 0°.
Centripetal force is a pressure that acts on an object with a view to direct it closer to a center of curvature. The force generated by means of your arm puts the yo-yo itself in movement, and the tension on the string continues it moving in a circular direction as you twirl it.
One common place instance concerning centripetal pressure is the case wherein a body actions with uniform pace along a circular route. The centripetal force is directed at proper angles to the movement and also alongside the radius closer to the centre of the round route.
Centripetal force is a force on an object directed to the center of a round path that maintains the object at the route. Its price is based totally on three factors:
1) The speed of the item because it follows the round route;
2) The object's distance from the center of the route;
3) The mass of the object.
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