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Physics

Dereon Rasmussen

Calculate the amount work done if you use a 100n force to push a 5g box 5m across the kitchen floor

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Physics

Samara Conner

Bonnie and Clyde are sliding a 315 kg bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 381 N of force while Bonnie pulls forward on a rope with 363 N of force.

What is the safe's coefficient of kinetic friction on the bank floor?

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Physics

Zack Bailey

A passenger on a moving train walks at a speed of 1.40 m/s due north relative to the train. The train is traveling at 3.5 m/s due east relative to the ground. What are the magnitude and direction of the velocity of the passenger relative to the ground

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Physics

Volvo

In how many ways can the energy of system a be distributed?

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Physics

Skipper

What is an example of kinetic energy due to gravity?

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Physics

Desirae

What is an example of a mechanical noise?

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Physics

Charlie Santana

Under which condition is no work done? A force pushes an object and slows it down. A force pulls an object and speeds it up. A force pulls down on an object that moves downward. A force pushes up on an object that stays in place.

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Physics

Sean Glass

The sun gives off energy in the form of?

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Physics

Gould

What component of Star Wars is possible

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Physics

Mugsy

You testify as an expert witness in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill. You find that the slope of the hill is θ = 12.0°, that the cars were separated by distance d = 24.0 m when the driver of car A put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car A at the onset of braking was Vo = 18.0 m/s.

With what speed did car A hit car B if the coefficient of kinetic friction was (a) 0.60 (dry road surface) and (b) 0.10 (road surface covered with wet leaves) ?

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Physics

Oscar Delgado

An 80-kg man climbs a 6-m ladder in 12 seconds. what is his average power expended?

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Physics

Kendrick Cooley

Which situation describes a system with decreasing gravitational potential energy?

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Physics

PBJ

What mass of water will change its temperature by 20.0 degrees Celsius when 515 J of heat is added to it? the specific heat of water is 4.18J/g*C.

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Physics

Makaila Whitney

Which of the following is not considered to be a rock

A (coal) B (sandstone) C (pumice) D (lava)

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Physics

Richard

How do astronomers know what conditions exist inside the Sun?

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