The magnitude of the magnetic field at the center of the loop is 3.31 x 10⁻⁶ T.
What is the magnitude of the magnetic field?The magnetic field is the region of space around which the influence an magnetic force is felt.
Mathematically, the formula for magnetic field at the center of a loop is given as;
B = μ₀I / 2r
where;
μ₀ is permeability of free spaceI is the currentr is the radius of the wireThe magnitude of the magnetic field at the center of the loop is calculated as;
B = ( 4π x 10⁻⁷ x 0.58 ) / ( 2 x 0.11 )
B = 3.31 x 10⁻⁶ T
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list and briefly define the 7 perspective/models of psychology
Cognitive, behavioral, psychodynamic, humanistic, biological, sociocultural, and evolutionary views are the perspective of psychology
How does psychology define and explain it from many angles?There are various psychological perspectives on and explanations for human behavior. When examining how people think, feel, and behave, psychologists draw on a range of views.
4 main psychological viewpoints
Psychoanalytical Viewpoint.Humanistic viewpointPerspective on traits.Social Cognitive Viewpoint.The majority of ideas and studies that aim to comprehend the cognitive, emotional, and behavioral processes that humans encounter on a daily basis are built around these objectives.
Cognitive, behavioral, psychodynamic, humanistic, biological, sociocultural, and evolutionary views are the main ones in psychology that have recently arisen.
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the de broglie wavelength of a 0.0810 gram bullet traveling at the speed of 658.3 m/s is m.
The de broglie wavelength of the bullet of mass 0.081 g is 1.24×10⁻³⁸ m
What is wavelength?Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
To calculate the de broglie wavelength, we use the formula below.
Formula:
λ = h/mv................... Equation 1Where:
λ = de broglie wavelength of the bulletm = Mass of the bulletv = Velocity of the bulleth = Planck's constantFrom the question,
Given:
h = 6.62×10⁻³⁴ J/Hzm = 0.081 = 0.000081 kgv = 658.3 m/sSubstitute these values into equation 1
λ = (6.62×10⁻³⁴)/(0.000081×658.3)λ = 1.24×10⁻³⁸ mHence, the de broglie wavelength of the bullet is 1.24×10⁻³⁸ m
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determine the following for the sphere when it is at the bottom of the plane: its translational kinetic energy
At the bottom of the inclined plane, the total potential energy is converted into translational kinetic energy as shown in the below figure.
The sphere has two kinds of kinetic energy: translational and rotational. The translational kinetic energy is given by the usual equation: 1/2 mv^2.
The rotational energy is 1/2 Iω^2.
At the bottom of the inclined plane, the total potential energy is converted into translational kinetic energy as shown in the bellow figure
For a solid sphere I = 2/5 mr^2,
where r is the radius of the sphere. the last term of the rotational kinetic energy is the angular velocity, which may be expressed in radians/second or other units like the one shown below: linear velocity units/linear units. In these last cases, you have to change the angular velocity to linear velocity.
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what causes a bullet or projectile to travel down the barrel of a firearm and exit at the muzzle?; what is one thing that almost always happens when a cartridge is fired; what can affect the performance of a cartridge; firing mechanism of a gun; how is a single-shot different from a repeating firearm; which type of action operates automatically each time you pull the trigger; shot pellets and a bullet are examples of which basic component; what happens when you pull the trigger on a gun
When gunpowder explodes, a gaseous byproduct is produced that expands quickly. The cartridge is propelled through the barrel by the projectile due to this gas expanding.
An object which is in motion in the air with no other force beyond gravity influencing it is a projectile. A projectile is an object that is launched into the air with only downward gravity force acting on it and maintains speed due to its own inertia. A projectile is a body that is launched into space or the air. The trajectory of a projectile is defined as its curved path of travel. The free fall motion of any item in a horizontal path with constant velocity is Projectile Motion.
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two identical, thin rods, each with mass mm and length ll, are joined at right angles to form an l-shaped object. this object is balanced on top of a sharp edge (figure 1). if the l-shaped object is deflected slightly, it oscillates.
The length of time that an action or state persists. The given L-shaped object made of two rods oscillates at a frequency of 2π√√2L/3g.
The rod weighs m grams.
The length of a single rod is L.
If it is connecting at, as indicated by the query, then the moment of inertia of the combined system follows.
mL²/3+3L²/3=2mL²/3
Here, I denotes the rod's moment of inertia, d denotes the separation of the center of gravity from the fixed point, and T denotes the length of time the L-shaped object oscillates.
Length of pendulam
Lcos45=L*1/√2=L/√2
Caluclate the time period
T=2π√I/mgl
=2π√2*mL²*√2/3*2mgl
oscillates at a frequency = 2π√√2L/3g
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An 8.0-newton block is accelerating down a frictionless ramp inclined at 15° to the horizontal. What is the magnitude of the net force causing the block’s acceleration?
The magnitude of the net force causing the block’s acceleration is 8N.
We know that,
[tex]F_{x} = mg* cos\alpha[/tex] (force along x - axis) and
[tex]F_{y} = mg* sin\alpha[/tex] (force along y - axis)
The magnitude of net force is given by :
[tex]F_{net} = \sqrt{F_{x} ^{2} + F_{y} ^{2} }[/tex]
[tex]F_{net} = \sqrt{(mg*cos\alpha )^{2} + (mg*sin\alpha )^{2} } \\F_{net} = \sqrt{(mg)^{2}[ (cos\alpha) ^{2}+(sin\alpha) ^{2} ] } \\F_{net} = mg[/tex]
Given, weight = 8N and angle [tex]\alpha =[/tex] 15°
We know that F (force) = ma = mg = weight
Putting these values in above equation we get ,
[tex]F_{net} = 8N[/tex]
So the magnitude of the net force causing the block’s acceleration is 8N.
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Four identical boxes filled with different objects are initially at rest. A horizontal force is applied for 10 seconds, and the boxes move across the floor. Rank the magnitude of the change i momentum during a 10-second interval for each box from greatest to least. Use >, <, and = signs to indicate your ranking.
The ranking of magnitude of the change in momentum during a 10-second interval for each box from greatest to least is D > A = B > C.
What is the momentum of an object?
The momentum of an object is defined as the product of mass and velocity of the object.
Mathematically, the formula for the momentum of an object is given as;
P = mv
where;
m is the mass of the objectv is the velocity of the objectThe change in momentum of an object is defined as the impulse experienced by object.
F = ma
F = m(Δv)/t
Ft = Δmv
J = Ft = Δmv
J = Ft = ΔP
where;
J is the impulse experienced by the objectF is the applied forcet is the time of motionΔP is the change in momentumThe change in the momentum of the objects during the given time interval is given as;
change in the momentum of object = Impulse experienced by object
change in the momentum of object = Ft
change in the momentum of A = 75 N x 10 s = 750 Ns
change in the momentum of B = 75 N x 10 s = 750 Ns
change in the momentum of C = 50 N x 10 s = 500 Ns
change in the momentum of D = 100 N x 10 s = 1000 Ns
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for laminar flow of air over flat plates with uniform surface temperature, the curve that most closely describes how the average heat transfer coefficient changes with the length of the plate is
For laminar flow of air over flat plates with uniform surface temperature, the curve that most closely describes how the average heat transfer coefficient changes with the length of the plate is option D.
What is the laminar flow of air?Laminar flow is described as airflow in which the entire body of air inside a specific location moves at a constant speed and in a single direction.
This layer of air has a tendency to stick to the wing because air has viscosity. The boundary layer initially glides over the airfoil's streamlined shape as the wing goes forward through the air. The boundary layer and flow are both laminar in this situation.
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a fisherman notices that wave crests pass the bow of his anchored boat every 2.0 s . he measures the distance between two crests to be 7.5 m .
The waves are traveling at 3.75 m/s considering the distance between two crests to be 7.5 m.
Identify the known variables. In this problem, we have the time between two wave crests (2.0 s) and the distance between two crests (7.5 m).
Calculate the wave speed. To calculate the wave speed, we need to divide the distance between two crests by the time between them. This gives us the equation v = d/t.
Plugging in our known values, we get v = 7.5 m / 2.0 s = 3.75 m/s.
The waves are traveling at 3.75 m/s.
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With the tank at least partially filled so there is some water above the pressure gauge, change fluid density to gasoline: 700kg/m². Record pressure gauge reading ______kPa. Change fluid density to close to honey: 1400kg/m². Record pressure gauge reading ______kPa. Does the pressure double when the density of the liquid doubles? _____Why/why not?
Honey and gasoline have different densities, so the pressure does not double when a liquid's density does.
What is meant by liquid density?A liquid's density serves as a gauge for its weight relative to the volume being evaluated. The liquid that weighs more is denser if two distinct liquids are weighed in quantities that are equivalent. It will float on the water if a liquid that is less thick than water is carefully added to the surface of the water.
Due to the various densities of honey and gasoline, the pressure does not double when the density of a liquid does. Since we all know that the acceleration caused by gravity is constant, I made the assumption that the liquid level would remain the same throughout the activity.
Only the variation in density caused by the chemical composition of the substance has an impact on pressure. According to Pascal's Law, the only situation in which a liquid's pressure could possibly double is if the two objects were the same liquid but were at different heights.
Change fluid density to gasoline at a density of 700 kg/m2, with the tank at least partially filled such that there is some water above the pressure gauge. Note the 118.2 kPa pressure measurement on the gauge. Adjust fluid density to 1400 kg/m2, which is similar to honey. Keep track of the pressure reading, 135.2 kPa. Does the pressure double as the liquid's density does? No why or why not
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for light of wavelength 589 nm, calculate the critical angle for fused quartz when surrounded by water.
The critical angle for the following materials surrounded by air is a) θc = 44.21⁰.
b) θc = 41.14⁰
c) θc = 40.36⁰
What is critical angle ?
The angle of incidence at which the angle of refraction equals 90 degrees is known as the critical angle. When light enters a denser media from such a comparatively rarer medium, the orientation of light changes as well as the light beam bending towards the normal.
sin θ = n2/n1
For air,
n₂ = 1
so,
sin θ = 1/n1
(a) fluorite : n₁ = 1.434⁰
sin θ = 0.697 θc = 44.21⁰.
(b) crown glass: n₁ = 1.52⁰
sin θ = 0.657 θc = 41.14⁰.
(c) sodium chloride : n₁= 1.544⁰
sin θ = 0.647 θc = 40.36⁰.
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Suppose a spaceship is approaching the Earth at 0.25c and a message capsule is sent toward it at 0.25c relative to the Earth Randomized Variablesv = 0.25 cWhat is the ratio of the capsule’s speed, as measured on the spaceship, to the speed of light?μ/c =
The ratio of the capsule’s speed, as measured on the spaceship, to the speed of light; μ/c 1/4.
Define the term speed of light?One universal physical constant which is significant in many branches of physics is the speed of light in a vacuum, typically abbreviated as c. The exact value of the speed of light, c, is 299,792,458 meters per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).For the stated question-
Consider sending a communication capsule to an incoming spacecraft at 0.25c relative to the Earth's randomized variablesv = 0.25 c.
Thus,
Let capsule’s speed is μ = 0.25 c.
Speed of light is c.
Then, ratio;
Capsule’s speed/Speed of light = 0.25 c/c
Capsule’s speed/Speed of light = 0.25
Capsule’s speed/Speed of light = 25/100
Capsule’s speed/Speed of light = 1/4
Thus, the ratio of capsule’s speed/Speed of light is found as 1/4.
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Which of the following is an assumption rather than a prediction of Einstein's special theory of relativity?
A) length contraction B) time dilation C) No material object can reach or exceed the speed of light. D) the constancy of the speed of light E) the equivalence of mass and energy
the constancy of the speed of light
No material object can reach or exceed the speed of light is the assumption.
The Principle of Relativity : The states of changed physical systems are not affected, whether these changes of state be referred to the one or the other of two systems in uniform translatory motion relative to each otherThe Principle of Invariant Light Speed : Light is always propagated in empty space with a definite velocity c which is independent of the state of motion of the emitting body.In relative theory, reference frames play a vital role. It is used to measure a time of events by using a clock.An event is nothing but an occurrence that refers to a location in space corresponding to the reference frame. For instance, the explosion of a fire flower can be considered as an event.To know more about theory of relativity visit:
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in the hydrogen spectrum, the series of lines called the lyman series results from transitions to the n=1 energy level. What is the longest wavelength in this series and in which region of the electromagnetic spectrum does it lie?
According to question the longest wavelength in the lyman series and in which region of the electromagnetic spectrum does it lie is 122nm.
What is meant by Lyman series?When an electron transitions from the smallest energy level of n = 1 to n = 2 (here n is the primary quantum number), known as the Lyman series, it emits ultraviolet light from the hydrogen atom in a sequence of changes.
Breifing:Rydberg equation: 1/L = R(1/n2 - 1/m2)
where L is wavelength, R is Rydberg constant, m and n are quantum numbers of levels involved in transition.
Longest wavelength in Lyman series: n = 1, m = 2
1/L = 1.097 x 107 x (1/1 - 1/2)
L = 1.22 x 10-7 m = 122 nm
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What is located directly above the focus where the most damage can occur to structures?
Answer:
option(c) Epicenter
Explanation:
Hypocenter or the focus is the point where an earthquake or an underground explosion originates. center is the point that's directly above the focus on the face of the earth.
During earthquakes, utmost of the time it's the center that encounters topmost damage. The word center was deduced from the Latin word ‘ epicentrum ’ meaning positioned on a center.
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What happens to the potential energy of the skier as it moves down the slope?; What type of transformation is a skier skiing straight down a slope?; What kind of energy is skiing?; What transformations of energy take place on a ski slope?
The potential energy of the skier decreases as it moves down the slope. There is a change in mechanical forms of energy that take place when a skier is skiing down the slope. Potential energy changes into kinetic energy down the ski slope.
At the height of the slope, the skier has total potential energy. When it starts slipping, it lowers in height, and thus potential energy decreases. As it gains, speed down the slope, its kinetic energy increases.
So, there is loss of potential energy into kinetic energy. Reaching at the bottom, height decreases to zero, and thus, potential energy also becomes zero. At this time, kinetic energy is maximum before stopping. Due to friction of the surface, kinetic energy is dissipated into the surface, and kinetic energy also becomes zero.
At any point of time during skiing, the total mechanical energy ( potential + kinetic) remains the same for the skier.
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estimate the number of neutron stars black holes in the cluster relative to the number of main-sequence stars in the cluster.
According to estimates, the Night Sky alone contains between ten million and one billion supermassive black holes.
The contents of black holes.The singularity, the outside and inner event horizons, and black holes all have three "layers." A black wall's event horizon is the area surrounding its mouth beyond which light cannot travel. A particle cannot depart the event horizon once it has done so.
How might a black hole affect Earth?Black holes are numerous, but there is no need to be alarmed because they will not eat the Earth or the entire universe. The possibility of Earth ever being absorbed by a black storm is utterly remote. This is because their gravitational influence is less powerful at a distance.
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According to Newton's Third Law, if a hammer puts a force of 100 N on a nail, how much force does the nail put back on the hammer?
A. -100 N
B. 50 N
C. 200 N
D. -200 N
Answer:
option (A) is correct.
Explanation:
Newton’s Third Law: Action & Reaction Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. His third law states that for every action (force) in nature there is an equal and opposite reaction. If object A exerts a force on object B, object B also exerts an equal and opposite force on object A.
How fast will an electron be traveling after being ejected from the electron gun if the voltage is set to
500 V
? For full credit: (1) show your work, (2) show explicitly how the units simplify, and (3) express your answer as a percentage of the speed of light. Attach a separate sheet of paper if needed.
β=( 4/5 )^3/2 40N1/0
Electrostatic forces, which induce attraction of repulsion between particles, are caused by the electric charges of the particles. The speed of the electron blasted from electron gun is 13.25 x 106 m/s.
What does an electron consist of?An electron appears to be a subatomic particle with a negative charge whether it is linked to an atom or not (not bound). Along with the protons and neutrons, electrons are one of the three primary types of particles that make up an atom.
Why do we use electrons?In order to assist developers in producing cross-platform desktop applications utilizing JavaScript, HTML, and CSS, GitHub built the open source package known as Electron. This is accomplished by Electron by combining Chromium and Node. Using JavaScript, it is feasible to combine apps for Apple, Windows, and Linux into a single runtime.
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in fig. 15-31, two springs are attached to a block that can oscillate over a frictionless floor. if the left spring is removed, the block oscillates at a frequency of 30 hz. if, instead, the spring on the right is removed, the block oscillates at a frequency of 45 hz. at what frequency does the block oscillate with both springs attached?
Frequency that the block oscillate with both springs attached is 45 Hz.
Let the spring constants be k₁ and k₂.
When displaced from equilibrium, the magnitude of the net force exerted by the springs is |k₁x + k₂x| acting in a direction so as to return the block to its equilibrium position ( x = 0 ).
Since the acceleration a = d²x / d², Newton’s second law yields,
m( d²x / d² ) = - k₁x - k₂x,
Substituting x = x(m) cos ( ωt + Φ) and simplifying we find
ω² = (k₁ + k₂) / m
where ω is in radians per unit time. Since there are 2π radians in a cycle, and frequency f measures cycles per second, we obtain
f = ω / 2π = 1 / 2π (√k₁ + k₂ / m)
The single springs each acting alone would produce simple harmonic motions of frequency
f₁ = 1 / 2π √(k₁ / m) = 30 Hz
f₂ = 1 / 2π √(k₂ / m) = 45 Hz
respectively, Comparing these expressions, the frequency will be
f = √(f₁² + f₂²)
f = √(30² + 45²)
f = 45 Hz
Therefore, frequency that the block oscillate with both springs attached is 45 Hz.
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Two electric model trains are sitting on a long stretch of track. One train has a mass of 5.50 kg and rolls into the second train which is at rest. The second train is much smaller, with a mass of 550.0 g. After the bump, the large and small trains have velocities of 3.2727 cm/s and 7.2727cm/s , respectively. What is the original velocity of the large train before the bump?
The original velocity of the large train before the bump will be 3.999 cm/s.
Velocity can be defined as the rate of change distance with respect to time.
Its SI unit is m/s.According to the law of conservation of momentum,
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
m₁ = mass of the first model electric train = 5.50 kg = 5500 g
u₁ = initial velocity of the first model train
m₂ = mass of the second model electric train = 550.0 g
u₂ = 0 m/s as it is at rest
v₁ = final velocity of the first model train after collision = 3.2727 cm/s
v₂ = final velocity of the second model train after collision = 7.2727 cm/s
By putting the values in the main equation, u₁ can be calculated,
5500*u₁ + 550*0 = 5500*3.2727 + 550*7.2727
5500*u₁ = 17999.85 + 3999.985
5500*u₁ = 21999.835
u₁ = 21999.835/5500
u₁ = 3.999 cm/s
The original velocity of the large train before the bump will be 3.999 cm/s.
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The lifetime (in hours) of a 60-watt light bulb is a random variable that has a Normal distribution with o = 30. A random sample of 25 bulbs put on test produced a sample mean lifetime of T = 1050. We want to construct a 95% confidence interval for the mean lifetime u. We use 1.96 as the critical value for the 95% confidence interval. If it were desired to have the length of a 95% confidence interval no larger than 14 hours, what is the sample size required to achieve this result? 17 18 70 71
a) 92% Confidence interval: (1027.5,1048.5)
b) Sample size = 100
What is Sample size?
The process of deciding how many observations or replicates to include in a statistical sample is known as sample size determination. Any empirical study with the aim of drawing conclusions about a population from a sample must take into account the sample size as a crucial component.
We are given the following in the question:
Sample mean, = 1038
Sample size, n = 25
Alpha, α = 0.08
Population standard deviation, σ = 30
a) 92% Confidence interval:
[tex]$\mu \pm z_{\text {critical }} \frac{\sigma}{\sqrt{n}}$[/tex]
Putting the values, we get,
[tex]$z_{\text {critical }}$[/tex] at [tex]$\alpha_{0.08}=\pm 1.75$[/tex]
[tex]$1038 \pm 1.75\left(\frac{30}{\sqrt{25}}\right)=1038 \pm 10.5=(1027.5,1048.5)$[/tex]
b) In order to reduce the confidence interval by half, we have to quadruple the sample size.
Thus,
Sample size [tex]$=25 \times 4=100$[/tex]
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Which section shows the greatest rate of positive acceleration?
The rate at which an object changes its velocity is known as acceleration, a vector quantity.
What kind of positive acceleration is the greatest?When the rate of change of velocity in an increasing sense (the slope of the velocity-time curve) is at its highest positive value, acceleration will be at its maximum positive value.The rate of change in velocity is greater for the graph with the sharpest slope. That thing is moving with the most velocity.The velocity-time graph displays a line with an upward slope, indicating a positive acceleration; the line is situated in the graph's positive area (corresponding to a positive velocity).When the car accelerates positively, its speed rises. As the car slows down, its speed decreases.When an object accelerates in the same direction as its velocity, it is doing so in that same direction. This object is therefore moving at a positive rate.To learn more about greatest rate of positive acceleration refer to:
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Physics Astone is dropped from a 45m tall building calculat a velocity as it hits the ground b time to care ach on the ground. c. Velocity after osec
a) The velocity as the Physics Astone hits the ground be 29.69 m/s.
b) Time to reach on the ground be 3.03 second.
c) Velocity after 0 sec of falling is zero.
What is velocity?The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.
Given that: Physics Astone is dropped from a 45m tall building.
Acceleration due to gravity: g = 9.8 m/s^2.
So,
a) velocity as it hits the ground = √(2gh) = 29.69 m/s.
b) Time to reach on the ground = velocity/acceleration = 29.69/9.8 second = 3.03 second.
c) Velocity after 0 sec of falling is zero.
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(a) On the dot below, which represents the block, draw and label the forces (not components) that act on the block as it is at rest on the incline. Each force must be represented by a distinct arrow starting on, and pointing away from, the dot. The dashed line represents the direction of the incline.
(b) Derive an expression for the maximum value of θ for which the block will not slide down the incline.
Assume the value of θ is greater than the value from part (b).
(c) Derive an expression for the acceleration of the block.
(d) The incline is set with the angle θ. The angle is slowly increased until the block begins to slide down the incline. After the block begins to slide, the angle is kept constant.
Numerous forces are applied to the block in a circular route; the forces at the path's lowest point are as follows. Vertically and downwards, the weight that the Earth exerts on the body.
Describe some instances of components.Component examples include a single button on a graphical user interface, a tiny interest calculator, and an interface to a database management. On various servers throughout a network, components may be set up and can connect with one another to provide the required services.
What do simple components refer to?With the use of simple component analysis, you may condense a huge number of closely linked variables into a manageable amount of useful components. However, it offers a more understandable resolution. It is comparable to principal component analysis.
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A 2.10 mH toroidal solenoid has an average radius of 5.80 cm and a cross-sectional area of 2.20 cm^2 .A.How many coils does it have? In calculating the flux, assume that B is uniform across a cross section, neglect the variation of B with distance from the toroidal axisB.At what rate must the current through it change so that a potential difference of 2.40 V is developed across its ends?
A toroidal solenoid has 1664 turns.
The rate of current is across it is 1142.86 A/s.
What is a solenoid?
A solenoid is a machine made of a casing, a coil of wire, and a moving plunger (armature). A magnetic field that generates around the coil when an electrical current is applied pulls the plunger in. A solenoid, to put it simply, transforms electrical energy into mechanical work.
Given,
Length L = 2[tex]\pi[/tex]r
= 2[tex]\pi[/tex]×0.058 = 0.3644 m
L = [tex]u_{o}[/tex][tex]N^{2}[/tex]A/l
N= [tex]\sqrt{LXl/u_{oA} }[/tex]
N = [tex]\sqrt{2.1X10^{-3}X0.3644/4\pi X10^{-7}X2.2X10^{-4}}[/tex]
N= 1664 turns
B) V = L [tex]\frac{dl}{dt}[/tex]
[tex]\frac{dl}{dt}[/tex] = [tex]\frac{V}{L}[/tex] = [tex]\frac{2.4}{2.1X10^{-3} }[/tex]
[tex]\frac{dl}{dt}[/tex] = 1142.86 A/s
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A computerized spin balance machine rotates a 25-inch-diameter tire at 430 revolutions per minute.
(a) Find the road speed (in miles per hour) at which the tire is being balanced. (Round your answer to two decimal places.)
Diameter D = 25 inch
Radius r= D/2 = 25/2 = 12.5 inch
"1 ft = 12 inch and 1 mile = 5280 feet". R = 12.5×(1/12)×(1/5280) mile
Revolution n =430 rev./minute , n=430 × 60 rev./hour
Angular speed=2 × pi × n =2 × pi × n radian per hour =2 × pi × 430 × 60
a) Road speed = r × angular speed
Road speed = 12.5 × (1/12) × (1/5280) × (2 × pi × 430 × 60)
Road speed = 31.98 miles per hour
What is a revolution?
A revolution is a radical transfer in the founded order, often the founded government and social institutions.
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A 61.0 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a spare 12.0 kg oxygen tank in a direction away from the shuttle with a speed of 12.2 m/s, propelling the astronaut back to the shuttle. Assuming that the astronaut starts from rest with respect to the shuttle, find the astronaut's final speed with respect to the shuttle after the tank is thrown.
-1.9 m/s
However, there are no other forces in space than gravity and friction. After the tank is tossed, the astronaut's ultimate speed in relation to the shuttle is 4.7 m/s.
Despite this, there are no other forces in space than gravity and friction. Only the conversion of momentum is taking place here.
The equation m1v1=m2v2
Where, m1-mass (first object) is 61.0 kg and m2-mass (second object) is 12 kg, and v1-velocity (first object) is and v2-velocity (second object) is respectively.
Formulate the value as 61xv1=12x12.2 v1=4.7m/s.
After the tank is tossed, the astronaut's final speed relative to the shuttle is 1.9 m/s, we can infer.
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in this kind of amplifier, the output is exactly in phase to input. when a ve voltage is applied to the circuit, then the o/p will be positive. the o/p is non-inverted in terms of phase.
The amplifier is non-inverting amplifier.
What is amplifier?
A circuit that enlarges a signal is called an amplifier. The idea behind an amplifier is to create an output signal that is a copy of the input signal but with a stronger magnitude.
What is non-inverting amplifier?
An operational amplifier circuit with a non-inverting amplifier has an output voltage that is in phase with the input voltage. The inverting op amp, which generates an output signal that is 180 degrees out of phase, is its complement. Its output and input signal are in phase. It just amplifies the signal without altering its phase. It does not invert the phase of the signal, as its name would imply.
The amplifier is non-inverting amplifier.
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compare the final kinetic energies of pucks a and b . compare the final kinetic energies of pucks and . ka
Puck B's kinetic energy is 2 times puck A's kinetic energy.
what is kinetic energy?The energy an item has as a result of motion is known as kinetic energy. If we wish to accelerate an item, we must use force. We must put in effort in order to apply force.
Briefing:
Let the,
mass of puck A =m
mass of puck B = 2 m
The initial speed for both the pucks is the same as u and the distance is the same for both as s.
Let the tension is T for the same.
Then, the kinetic energy is given as,
KE= [tex]\frac{1}{2}[/tex] M[tex]V^{2}[/tex]
where M is the mass of an object
and v is the velocity of an object
as the speed is the same for both mass A and B so kinetic energy will depend on only the mass of the object.
[tex]\frac{KE OF A}{KE OF B}[/tex] = [tex]\frac{1}{2} M_{A} V_A^{2}[/tex] /[tex]\frac{1}{2} M_{B} V_B^{2}[/tex]
on putting the values of masses a and b
we get,
[tex]\frac{KE OF A}{KE OF B}[/tex] = [tex]\frac{1}{2}[/tex]
KE OF B= 2(KE OF A)
As a result, we can say that puck B has kinetic energy that is twice that of puck A.
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the complete question is:
Puck B has twice the mass of puck A. Starting from rest, both pucks are pulled the same distance across frictionless ice by strings with the same tension. Compare the final kinetic energies of pucks A and B.
