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: U 2.

A: The slope (m) of the above graph can be given as:

Q: How much work was done on him by gravity?

A:

Q: 4. This Olympic skeleton athlete slides down an icy track head first. The track has many twists and…

A: We are given an athlete sliding down the track. We are given that there is friction and air…

Q: An assistant for a football team carries a 32.0 kg cooler of water from the top row of the stadium,…

A: The expression to solve for the work done by the assistant is as follows: WA=KEf-KEi+PEf-PEi…

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: Question 9) During a board game called Rat Trap0, mechanical contraptions are activated in a…

A: The given values are, m=50.0 g=0.05 kgEloss=2.0 Jhi=17 cm=0.17 mhf=4.0 cm=0.04 mvf=13 m/s

Q: What effect do external forces like an applied force, friction force, or drag force have? O They…

A: Any external force acting on the system acts in such a way that the total mechanical energy of the…

Q: 6. Conveyor belts are often used to move packages around warehouses. The conveyor shown below moves…

A: Given weight of the employee F1=500 N Weight of the box F2 =1000N Distance s=50m The box and the…

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 2400-kg pile driver is used to drive a steel beam Into the ground. The pile driver falls 6.00 m…

A: mass of pile driver (m) = 2400 kg Height of pile driver before coming in contact with top of beam…

Q: Question #: 22 A bead of mass m = 50 g is moving on the track shown in the figure. What is the…

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Q: Problem #2: a. How high a hill can a car coast up (engines disengaged) if work done by friction is…

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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: Awater-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: We have, Mass, m = 81 Kg Initial speed u = 6.5 m/s Final speed, v = 10.1 m/s

Q: An escalator carries you from one level to the next in an airport terminal. The upper level is 4.7 m…

A:

Q: 1=2.5 m/s A 4500 kg truck is stuck at the bottom of a ditch. A winch 30° (small motor attached to a…

A: Final velocity = 2.5 m/s Initial velocity = 0 m/s Mass m = 4500 kg Power = 2.05 kW

Q: The only force acting on a 4.0 kg canister that is moving in an xy plane has a magnitude of 5.5 N.…

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Q: 1. A pitcher throws a ball at 90 mi/h, and the catcher stops it in her glove.(a) Is the work done on…

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Q: A factory worker moves a 23.0 kg crate a distance of 5.00 m along a level floor at constant velocity…

A: Mass of crate "m "= 23kg . Distance travel "d'= 5m . co efficient of kinetic friction "uk"= 0.300.

Q: Which of these would have the greatest potential energy? A. A roller coaster at the top of a hill.…

A: To determine Maximum potential energy of a Roller Coaster Ride

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: 5) A 7.5 kg otter slides down a hill, starting from rest at the top. The sloping surface of the hill…

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Q: The average power output of the human heart is 1.33 watts.(a) How much energy does the heart produce…

A: Power is Time is Note:Find:(a) Energy produces by human heart in one day.(b) Estimate the height a…

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: I am riding an elevator that has a constant upward acceleration while the elevator travels upwards a…

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Q: m A person is pushing a wooden crate of mass mo = 20 kg at a constant speed vo = 1.2– for Ax = 3 m…

A: Given: Mass of the wooden crate, mo = 20 kg Speed of the crate, vo = 1.2 m/s Distance moved, ∆x = 3…

Q: 2. A winch is a mechanical lifting or hauling device consisting of a rope, cable, or chain winding…

A: Write the given values with the suitable variables. m=200 kgh=4 mη=45%=0.45 Here, m is the mass, h…

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: Motor A has twice the horsepower of motor B. Does this mean that motor A can do twice the work that…

A: Power (P) = Work Done (W) / Time (t) where SI unit of power is Watt (W)  where 1 horse power (hp) =…

Q: Problem 1: A skier of mass 70 kg if pulled up a slope by a motor-driven cable. (a) How much work is…

A:

Q: 8.) When a force acts on an object from an angle other than either 0° or 180° to the direction of…

A: When a force acts on an object from an angle other than either 0° or 180° to the direction of motion…

Q: A 3 kg block is pushed 3 m up a 30° incline by a 50 N force aligned parallel to the ramp. The…

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Q: 1. Two blocks are connected by a very light string passing over a massless and frictionless pulley.…

A: Given:-  Two blocks are connected with the string and pulley and the weight of the W1= 12 N block is…

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: A. If a roller coaster has a total of 6632 Joules of energy at the top of a hill, then at the bottom…

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

Q: A AA battery is used to power a motor that raises a 10-g pencil tied to a string 33 meters until it…

A: Mass m of the pencil =10g=0.01kgheight h through which it is raised = 33mg the acceleration due to…

Q: A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: Given data: Mass (m) = 73.5 kg Initial velocity (v0) = 5.2 m/s Final velocity (v) = 12.2 m/s…

Q: A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: Given :- mass of water skier = 61.2 kg initial velocity = 5.1m/s speed increases to 12.1 m/s

Q: A child throws a stone upwards. While the stone is moving upwards the gravitational force does…

A: The work done by a force on moving a body by a certain distance is given by W = F.s = F×s×cosθ,…

Q: A child slides down a slide without friction.   Compare the work done by the child’s gravity, to…

A:

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…