Problem 7 A person gets into an elevator at the lobby level of a hotel together with his 30-kg suitcase and gets out at the 10th floor 35 m above. Determine the amount of energy consumed by the motor of the elevator that is now stored in the suitcase.

Q: Determine whether the statement is true or false. The work done by a conservative force field in…

A: Work done by the conservative force

Q: The 50kg case slides down the chute with a velocity of 4 m/s at A and a velocity of 10 m/s at B.…

A: To determine: The work done by the friction from A to B   Given: Mass of case, m=50 kg Initial…

Q: (13%) Problem 5: A box of mass m is initially at rest at the highest point of an inclined plane,…

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Q: 25. Calculate the average speed of a 4.0 x 102-newton weight being lifted vertically by a 2.00 x…

A: Given: The weight of the object is 4x102 N. The required by motor is 2x103 W.

Q: "30 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: Dear student The Gravitational Potential energy of a particle is given by :  U = mgh Where, m = mass…

Q: A man is carrying a mass m on his head and walking on a flat surface with a constant velocity v.…

A: The problem is based on the concept of work done against gravity. W = (|F| cosθ) |d| .We know that…

Q: 3) If the escalator is not moving, determine the constant speed at which a man having a mass of 80…

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Q: "20 kg bear slides, from rest, 10 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: Potential energy can be considered as the energy based on the position of an object. If the height…

Q: A child's playground slide is d = 5.0m in length and is at an angle of e= 2.0° with respect to the…

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Q: Initial O v = 0 Final Y = 0 A 14 kg ball initially at rest rolls down a 142 m tall hill. When the…

A: Given: The initial speed of the ball is 0 m/s. The final speed of the ball is 31.1 m/s. The height…

Q: Location Height(m) Start A B C D E F 40.0 25.0 28.0 12.0 6.0 14.0 0 PE(J) KE(J) III Energy 0…

A: Given:-  The mass of the roller coaster is m = 400 kg  The height of the roller coaster is h = 40 m…

Q: Question 8) Regis goes to the water slides at an amusement park on a hot summer day. He approaches a…

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Q: A force acts on a particle which moves from the origin to point C. The particle can travel along…

A: Given: The work done by the force for each path: WOBC = 50 J, WOAC = 125 J, WOC = 66.7 J.  The work…

Q: A 3010kg speedboat is traveling on a lake (with no current) and shuts off its engine. The boat…

A: Given information: The mass of the speedboat, m=3010 kg The force applied on the boat, F=526 N…

Q: A worker dragging a crate along a horizontal surface by applying a constant force of 50 N at an…

A: Given: constant force F = 50 N friction force f = 15 N horizontal displacement d = 20 m angle of…

Q: Three objects with masses m1 = 6.2 kg, m2 = 14 kg, and m3 = 17 kg, respectively, are attached by…

A: Given:Mass of first object  is 6.2 kg.Mass of second object is 14 kg.Mass of third object is 17…

Q: While hovering, a particular flying insect applies an average force equal to three times its weight…

A: Givenmass, m=1 gm               =0.001 kgdisance, d=1.5 mm                  =0.0015 mstrokes,…

Q: A 0.2 kg rock is dropped into a lake from a few meters above the surface of the water. The rock…

A: Given data *The mass of the rock is m = 0.2 kg *The given constant speed of the rock is v = 4 m/s

Q: A firefighter slides down a pole with constant speed. What can you say about the energy?

A: Firefighter is slifing down tbe pole with constant speed.We know that potential energy is given by…

Q: how much work is done by a force F=(x)i+(4y^2)j, with x in meters, that acts on a particle as it…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: C7 21.) If a hair dryer is rated at 1300 W, how much energy does it require in 6 minutes?…

A: Power=Work/time Work=Power X time

Q: 13. The only force acting on a 2.0 kg canister that is moving in an ry plane has a magnitude of 5.0…

A:

Q: 20 - Bolum-7+A2B1C3uUxiD5ViBM7s27Vi20FXF231G A2.00 kg particle has a speed of 4.00 m/s at point A…

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Q: (Eigure 1) is the force-versus-position graph for a particle moving along the z-axis. Figure F, (N)…

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Q: As an object moves along the 26.0 m axis from = 0.0 m to z = 26.0 m it is acted upon by a force…

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Q: A table saw—powered by an electric motor—was measured to consume 0.2 kilowatt hours (kW·h) of…

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Q: Three objects with masses m₁ = 6.2 kg, m₂ = 14 kg, and m3 20 kg, respectively, are attached by…

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Q: . An alien spacecraft wishes to visit Earth, but in order to do so it must first escape its hom…

A: The velocity of an object refers to its rate of change of position as a vector quantity. escape…

Q: U (1)t, 4.0 2.0- 0- x (m) -2.0- -4.0- -6.0- 0.2 0.4 0.6 0.8 1.0 1.2 1.4 The variable x represents…

A: Option E is correct

Q: Let's say the Earth moves around the Sun in a circular orbit with a constant speed (neither is…

A: The correct answer is B. The work done on the Earth is zero, since the force of gravity is always…

Q: 25 kg bear slides, from rest, 12 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: We take the initial gravitational potential energy to be Ui= 0. Then the final gravitational…

Q: Question 9) During a board game called Rat TrapO, mechanical contraptions are activated in a…

A: Recall  U=mgh KE=1/2mv2 by conservation of energy.

Q: A constant force of 9 Newtons passes through a point (3, -4) and (10, -2). What is the work done by…

A: Work done is defined as  W=F→.S→F →=force vectorS→ =displacement vector

Q: One person rides on a "Ferris Wheel". When the wheel makes a complete turn, that is, we return to…

A: Given:- person rides on a ferris wheel one complete circle i.e return to the same point from where…

Q: E = (xy) ax + (x) ay+ (2) az, determine the work expended in carrying 6 C from B(3,1,1) to A(2,1.1)…

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Q: 2. I was hungry and bored in my room that is 7.00 m high from floor to ceiling. I bought an 800-g…

A: Height of ceiling is H = 7.0 m mass of pizza is m = 800 g = 0.8 kg Height of the table is h = 1.20 m…

Q: A 1000-kg car accelerates from 0 to 15 m/s in 5.0 s with negligible friction and air resistance.…

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Q: You and your friend, who weighs the same as you, want to go to the top of the Eiffel Tower. Your…

A: The gravitational potential energy(U) of a body mathematically can be given as, U = mgh, where m is…

Q: c) Eddy and his skateboard with mass a of 65 kg ride on a rough horizontal road as shown in Figure…

A: Total energy of a body in translational motion is given by sum of its kinetic energy and potential…

Q: A ball tied to a light string is whirled in a perfect horizontal circle with a constant speed of…

A: Work done is force time displacement in the direction of the force. When the ball moves with a…

Q: A 2000 kg rock rolls down a hillside at 40 m/s and crashes into a tree, where it comes to rest. The…

A: Basic concept of physics.

Q: In order not to gain weight, a student of mass m = 80 kg wishes to get rid of the energy gained by…

A: Given:- The mass of the student m = 80 kg The energy gained by the eating a hamburger E = 1600 KJ…