What is the average power output of a 55.0 kg woman who does 50 deep knee bends in which her center of mass is lowered and raised 0.400 m in a total of 3.00 min?  She does work in both directions. Group of answer choices 120 W 240 W 360 W 480 W

Q: A 4.15 kg bundle starts up a 33.3° incline with 149 J of kinetic energy. How far will it slide up…

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Q: A 55 g particle is moving to the left at 22 m/s . How much net work must be done on the particle to…

A: According to the work-energy theorem, the work done will be equal to the change in kinetic energy of…

Q: The object in the figure below undergoes a displacement of 2.00 m. The work done by the F=10.0 N…

A: Given that F = 10 N Displacement ∆x→ = 2 m x^ Angle with X-axis θ = 60°

Q: A weighlifter lifts a 50-kg barbell a vertical height of 2.0 m in 5.0 s. What is the average power…

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Q: 9 A box moves on a frictionless horizontal surface under the influence of the two forces = F₁ = (50î…

A: Power = It is the dot product of force vector to the velocity vector.

Q: A roller coaster filled with 20 people weighs 2645 kg. It is speeding through the track at 10.74 m/s…

A: Given Data : The total mass of the roller coaster is given as m = 2645 Kg. The speed of the roller…

Q: The concept of conservation of energy states that the total mechanical energy of a closed system…

A: The concept of conservation of energy states that the total mechanical energy of a closed system…

Q: A 64 kg human sprinter can accelerate from rest to 10 m/sm/s in 3.2 s . During the same time…

A: P=∆E∆t=0.5mv2f-v2i∆t

Q: A (6.40x10^1) kg woman runs up a flight of stairs in 5 s. Her net upward displacement is 5 m. What…

A: Given data:  Mass (m) = 6.40×101 kg Time (t) = 5 s Height (h) = 5 m Required: Power (P)

Q: A person standing at the top of a 7.0 m tall building throws a basketball (m = 0.625 kg) with…

A: Given,

Q: A block of mass 1.5 kg is at rest on a frictionless floor. A constant force F is subjected to the…

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Q: Football players measure their acceleration by seeing how fast they can sprint 40 yards (37 m). A…

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Q: A man moves the object of 10 g shown in a vertical plane from position P, to position P2 along a…

A: Given data:  Man moves in vertical plane Mass of object (m) = 10 g = 0.010 kg Radius of circular…

Q: A particle with a mass of 6 kg; It changes position over time according to the equation x = 2t ^ 3 +…

A: Given Data: The position is, x=2t3+5t2+10t. The mass is, m = 6 kg. The time considered is, t = 3 s.…

Q: if an 80 kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3 s, what average…

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Q: A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is 3.45 m above the water.…

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Q: What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44…

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Q: A 1.5 Kg ball at initial altitude of 0.0 m is trough upward with an initial speed of 10.0 m/s What…

A: Given data:  Mass (m) = 1.5 kg Initial altitude (h) = 0.0 m Initial Speed (v) = 10.0 m/s Required:…

Q: GO You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the…

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Q: Data Table Attempts 1st 2nd Weight 118 lbs. Height of stairs 0.08 Time 12.55 sec. 118 lbs. 0.08…

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Q: While training for a dog show, a 3.8 kg dog does 32 pushups in a minute, displacing its center of…

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Q: A 1 kg mass is projected from the edge of a 20 m tall building with an initial speed of 10 m's. The…

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Q: A 65.00-kg runner begins her exercise by moving with a velocity of 2.50 m/s. She then runs up a…

A: Kinetic energy is given by,  KE=12mv2 Potential energy is given by , PE=mgh Given : Mass m=65 kg…

Q: A belicopter with mass m 3250 kg is cruising at a speed of 56.9 m/s at an altitude of 185 m. What is…

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Q: ti=0 w = Ug5 4i =0 m = 13.bkq tp =0,80 s yf=070m yi=60m (assume the barbell is at rest in the…

A: For the first part, W=Ugf Mass of the barbell is m = 13.6 kg Distance of the final height is h =…

Q: A 2.80-kg object has a velocity (6.20 î - 2.40 ĵ) m/s. (Note: From the definition of the dot…

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Q: A force of 200 N displaces a body by 4 m, calculate the work done (in J). A) 40 B) 500 C) 80 D) 800

A: Given Data: The force applied is, F = 200 N. The displacement happened is, s = 4 m. The work is…

Q: 19. If a ski lift raises 100 passengers averaging 660 N in weight to a height of 150 m in 60.0 s, at…

A: average weight of a passenger= 660 N Total weight lifted= 100×660= 66000 N Height H= 150 m time…

Q: What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44…

A: Given: The mass (m) of the vendor is 65 Kg. The uniform velocity (v) of the vendor is 0.44 m/s.…

Q: The horizontal component of a force acts on a box moving to the right according to the plot shown,…

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Q: (2î + j + K) N. Work done by the force is (a) 2 J 16 J (b) 4 J (d) 8 J

A: Work is the product of the component of the force in the direction of the displacement and the…

Q: A pump lifts water at the rate of 6 m^3/s to a height of 120 m and the friction loss in the pipe is…

A:

Q: erson of mass 60 Kg climbs a tall building (height 120 m) at a steady pace in 18 minutes. What is…

A: Given: mass = 60 kg height = 120 m time = 18 minutes Need to find the average power generated by the…

Q: You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the…

A:

Q: You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the…

A: Given that, Distance travelled, d=1.1 m Time interval, t=1.8 s Power produced, P=88 W Let force…

Q: A fighter jet is launched from an aircraft carrier with the aid of its own engines and a…

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Q: A 55.0 g tennis ball was hit by a racket at an angle of 34.9° above the horizontal and travel a…

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Q: Describe the energy transformations that take place when askier starts skiing down a hill, but after…

A: When the skier begins from elevated position, it posses large quantity of potential energy. If he…

Q: What is her useful power output if she does 25 pushups in one minute?

A: It is given that,

Q: An object with mass m dropped from rest from height H, after travelling a distance and emerged…

A: The mechanical energy of a system is the sum of the kinetic energy and potential energy. That is;…

Q: A m chain 100 m E hA hE G m # 20. If hA= 80.0 m, and the mass of the cart m= 100.0 kg, what is the…

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Q: A block with an initial kinetic energy of 4.0 J comes to rest after sliding 1.0 m. How far would the…

A: Given - If the initial kinetic energy of block was K1,i = 4.0 J , then the distance travelled by the…

Q: An object with mass m dropped from rest from height H, after travelling a distance and emerged…

A: Potential energy at height h = mgh  Kinetic energy at speed v = (1/2)mv2

Q: An initially (t = 0) stationary 2.0 kg object accelerates horizontally and uniformly to a speed of…

A: Solution

Q: An accelerating object of mass m=4 kg is fired with an initial speed v=3 m/s at a starting point. If…

A: Initial velocity, u =3 m/s Mass, m = 4 kg Final Kinetic energy, K.E.2=380 J

Q: A toy robot powered by an electric motor accelerates from rest to 0.740 m/s in 20.0 ms. The total…

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