A block of mass 2 kg slides down a curved frictionless track and then up 300 inclined plane. The coefficient of friction between the block and incline 4 m. is μ = 0.10. Use energy methods to find ymax, provided that h =

Q: A body of mass 2 kg is initially at rest on a horizontal frictionless plane. It is then pulled 4…

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Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A: Given data The mass of the hummingbird is given as m = 2.4 g. The rate in which the wings…

Q: A single force acts on a 1.4 kg particle-like object in such a way that the position of the object…

A: Speed is given by,

Q: You have your textbook and pen with you while working on this exam. Assume the height of your…

A: Given Data : The height of the desk is given as H = 1m. The mass of the book is given as mb. The…

Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A: The weight of the bird is mg. a downward force which is equal to the magnitude of the weight of the…

Q: A 3.71-kg bucket of water is tied to a rope and lifted vertically upward at a constant speed of 1.6…

A:

Q: An object with a mass of 0.1 kg is thrown upwards with an initial speed of 5.0 m/s. Using the law of…

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Q: (Figure 1) shows your 1.5 kg laptop computer being dragged up a 25° slope at steady speed by a rope…

A: As Tension force and displacement are in same direction then work done : WT=T×∆r       =20×2…

Q: A 190 g block is pressed against a spring of force constant 1.60 m until the block compresses the…

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Q: The basis of muscle action is the power stroke of the myosin protein pulling on an actin filament.…

A: Given:  displacement, S = 10 nm = 10 × 10-9 m = 10-8 m  force, F = 1.0 pN = 10-12 N Energy input, E…

Q: A 3.00 x 102 kg piano is being an apartment 10.0 m above the g

A: GivenMass of piano, m=3×102 kgApartment height above ground, h=10 mPower , P=4×102 W

Q: A box lies on a plane at an angle θ = 15° to the horizontal, with μs = 0.39 and μk = 0.35 between…

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Q: Calculate the work done (in J) on a 1550 kg elevator car by its cable to lift it 37.5 m at a…

A: We have to be careful since we have to take the friction into consideration.  Given: Mass of the…

Q: A particle with a mass 267 g moves in 1D given by x (t) 0.65t 4.83t2 + 1.28t in m. Find the total…

A: mass of particle , m=267g=0.267 Kg (1 Kg=1000 gm) This particle moving in 1D given by equation in m…

Q: The loaded cab of an elevator has a mass of 2.50 x 10° kg and moves 214. m up the shaft in 25.0 s at…

A: Number : 214    units : kilo watt

Q: A block with a mass of 12.5kg is pulled up a smooth incline that makes an angle of 15.0° with…

A: Given data:   Mass of block (m) = 12.5 kg Inclined angle (θ) = 15.0° Power output (P) = 35 W…

Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A:

Q: A 7.80-g bullet moving at 660 m/s penetrates a tree trunk to a depth of 5.80 cm. (a) Use work and…

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Q: A car drives along the highway, maintaining a constant speed of 29 m/s. For all questions below,…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A ski starts from rest and slides down a 25.00incline 85 m long.            a) If the coefficient of…

A:

Q: Stretching a non-linear spring requires an amount of work given by the equation U=15x^2-10x^3, where…

A: Given: Potential energy at a given position x: U=15x2 - 10x3

Q: How much power is reduced to lift a heavy solid concrete beam with mass 57.02 kg upward with a…

A:

Q: As a pickup truck travels along a level stretch of road with constant speed, most of the power…

A: In this question we use power equation with speed and force.

Q: A 7.80 g bullet is initially moving at 560 m/s just before it penetrates a block of solid rubber to…

A:

Q: A block of mass m slides from rest down an incline from a height H. If μk is given, find the kinetic…

A: Work energy theorem

Q: The force acting on a particle is F(x)= 2x- 2x, where F is in N and x is in meters. Find the net…

A: In one dimensional motion of a particle, work done is given by, W=∫x1x2F(x)dx. Where F(x) is force…

Q: A spring has natural length 24 cm. Compare the work (in J) W, done in stretching the spring from 24…

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Q: 1. (a) What is the average useful power output of a person who does 7.00 x 106 J of useful work in…

A: average power output is given bywhere, is the work done is the time of work done.

Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A: Formula to calculate the average power is

Q: Kg and móvés 240 m up the shaft in 23 s at constant speed. At what average rate doesj the force from…

A: Here, we calculate  the average  rate given as follow;

Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A:

Q: A 7.80 g bullet is initially moving at 660 m/s just before it penetrates a block of wood to a depth…

A: The bullet is stopped by the friction force. This means that the loss in kinetic energy is due to…

Q: A 50.0 kg extreme snowboarder slides down the side of a mountain that is inclined at an angle of…

A:

Q: A box with a mass of 6.0 kg is accelerated from rest by force along a floor at a rate of 2.0 m/s^2…

A: Work done is defined as product of force and displacement . W= Fs where F is force            s is…

Q: It takes 1700 J of work to stretch a spring from its natural length of 1 m to a length of 5 m. Find…

A: Work done = 1700 J natural length = 1 m final length = 5 m

Q: A box of 9kg is released from rest on a rough inclined plane and slides to the bottom. The plane is…

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Q: Find the mathematical expression for the "instantaneous" gravitational potential energy for this…

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Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A: The weight of the bird is mg. a downward force which is equal to the magnitude of the weight of the…

Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A: Step 1Let m be the mass of the humming bird, l be the length of one stroke and t be the time taken…