A weight lifter lifts a 350-N set of weights from ground levelto a position over his head, a vertical distance of 2.00 m. Howmuch work does the weight lifter do, assuming he moves theweights at constant speed?

Q: Three clowns move a 275 kg crate 10.5 m to the right across a smooth floor. Take the positive…

A: The expression for the work done is as follows: W=F→·d→W=Fdcosθ               1 The expression to…

Q: (a) What is the average useful power output (in W) of a person who does 5.00 x 106 J of useful work…

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Q: ed of 13.2 km/hr average power

A: Given: Force of horse pulls is 140 N Angle is 28o Speed is 13.2 km/hr

Q: A 50-gram block rests on an inclined plane 15o with the horizontal. The coefficient of friction is…

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Q: a force F=(3x4-5) N acts on a body movin in 1D in x direction from the point x=0 to x=4 . find the…

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Q: A body dropped from a height H reaches the ground with a speed of 1:2 VgH. Calculate the work done…

A: Given, height = H             velocity v = 1.2gH           work done W = ?

Q: Suppose a 1400-kg elevator car is lifted a distance 42 m by its cable at a constant speed, assuming…

A: The objective of the question is to calculate the total work done on the elevator. The work done on…

Q: Two waves traveling in the same direction have a frequency of 100 Hz, a wavelength of 2 cm and an…

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Q: is pushed 4.O m along hori zontal floor by A 2 kg block a force of magnitude 25N at angle Q = 30.0°…

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Q: A person in good physical condition can put out 200 W of useful power for several hours at a…

A: POWER In physics, power is the amount of energy transferred or converted per unit time. The SI unit…

Q: There is a +5C charge at the center of a hollow sphere made of a perfect conductor. The hollow…

A: The objective of the question is to calculate the electric field as a function of distance from the…

Q: A 100N block is being pulled along the surface of a table by a 50.0N force in a direction 35 degrees…

A: Given that,Force on block : FB = 100 (N)Force on table :  FT = 50 (N)Angle : θ = 35°Coefficient of…

Q: Dr. Frankenstein is pushing a loaded Aldi’s cart through a grave- yard collecting parts for his…

A: F=300 Nx=5 mm=85 kgv=0.8 m/s

Q: A 100N block is being pulled along the surface of a table by a 50.0 N force in a direction 35…

A: Given:external force, F = 50.0 Nweight of the block, W = 100 Ndistance travelled, d = 1.00 mangle…

Q: Problem 2: A 32 kg block is pulled along the ground for a distance of 5.2 m by a 63 N force at an…

A: Formula of work done is as follows; W=Fdcosθ…

Q: A 4kg block is lowered down a rough inclined plane a distance of 5m from A to B. of 37o with the…

A: 1The work of the weight during the motion of the block from A to B.2 The workdone by the friction on…

Q: A 55.2-kg skateboarder starts out with a speed of 1.94 m/s. He does 85.6 J of work on himself by…

A: The work energy theorem for nonconservative force is:-  Wnc =  ΔK E + ΔP E ΔK E IS THE CHANGE IN…

Q: A stone manager pushes a 10 -kg box with a force of 25 N and directed at an angle of 37 °above…

A: Given  Mass of the box is m=10 kg Angle above the horizontal is θ=37° Displacement of the box is…

Q: A 54.2-kg skateboarder starts out with a speed of 1.89 m/s. He does 81.8 J of work on himself by…

A: Given Data: The mass of a skateboarder is, m=54.2 kg The initial speed of a skateboarder is, u=1.89…

Q: Suppose the car approches a hill and has the intial speed 106 km/h at the bottom of the hill. The…

A: Given Data : The initial speed of the car at the bottom of the hill is given as u=106 ms

Q: It takes 1200 J of work to stretch a spring from its natural length of 1m to a length of 5m. Find…

A:

Q: A block with m = 1kg moves up an incline (0-30°) with an initial speed of 10 m/s. Vo (a) If there is…

A: Given data: Mass of block is, m=1 kg . Angle of inclination is, θ=30∘. Initial speed of bock is,…

Q: A sked is initially given a shove up a frictionless 23.0o incline. It reaches a maximum vertical…

A: Let v be the final velocity of the sked, u be the initial velocity of the sked, s be the length of…

Q: Suppose you have g=10 µC charge placed at the orign of your coordinate system. a) Using Gauss's law,…

A: Consider a spherical gaussian surface of radius r1 surrounding the charge q as shown in figure.…

Q: See figure below. Theta = 55 degrees. The man's mass m=80kg. Coefficient of kinetic friction between…

A: Given, Angle with vertical, Mass of man, Coefficient of kinetic friction, Height, To find, Work…

Q: In climbing up a rope, a 62-kg athlete climbs a vertical distance of 5.0 m in 9.0 s. What minimum…

A: Given that,The mass of an athlete is, m=62 kgThe vertical distance, d=5mTime required to climb, t=9…

Q: (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s2against…

A: Part-a Given: The acceleration of the elevator a = 0.8 m/s2. The frictional force f = 200 N. The…

Q: Calculate the work done by an archer in pulling a bow if she pulls her bowstring back 0.455 m by…

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Q: How much work did the movers do (horizontally) pushing a 46.0-kg crate 10.6 m across a rough floor…

A: Given- Mass of crate (m) = 46 Kg Distance (d) = 10.6 m Coefficient of friction (μ) = 0.50

Q: A flight attendant pulls a suitcase for 20 [m] along a level floor by applying a 30 [N] force to the…

A: Given: applied force, F = 30 N  displacement of suitcase, S = 20 m  angle between applied force and…

Q: T7)A person is dragging a 20kg box along the ground by a rope 30° to the horizontal with à förce 81…

A: 17)     18)  (B) the work done by the net force.

Q: A sleigh sliding on a stiff icy mountainside obeys the law of conservation of Mechanical energy.…

A: The sleigh is initially at rest at the top of the 1 km high mountain peak. Since the sleigh is at…

Q: A 61.8-kg skateboarder starts out with a speed of 1.75 m/s. He does 80.4 J of work on himself by…

A: According to this theorem, the total work done on an object is equal to the change in its energy.…