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A 60 kg crate is lowered using arope over a fixed support. The rope exerts a constant upward forceof 500 N.? Will the crate accelerate? What are the magnitude and direction of the acceleration of thecrate? How long will it take the crate to reach the floor if the height ofthe loading dock is 1.4 m above the floor? How fast is the crate traveling when it hits the floor?
A boy in a wagon is moving at 3.1 m/s east when another boy begins pulling on the wagon in the direction opposite to its motion at 1.25 m/s^2. (a) How long does it take to give the wagon a velocity of 7.4 m/s west? (b) How far from the starting po..
include a free body diagram. Be sure to label all forces with their agents and size. 1. A 5.0kg cat running along suddenly braces his furry feet on the slippery floot in order to stop.
A 20 kg crate is pushed across the floor at a constant velocity of 4 m/s with a force of 100 N. How much energy is lost to heat in the first ten seconds
A solid, rectangular iron bar measures .40cm by 1.0cm by 30cm. Find the resistance between each of the three pairs of opposing faces, assume the faces in question are quipotentials.
An aluminum wire carrying a current of 3.0 A has a cross-sectional area of 2.0 ? 10-6 m2. Find the drift speed of the electrons in the wire
Calculate the y-component of the magnetic force.
How far south of his starting point will he reach the opposite bank.
Calculate the numerical value of the capacitance of this capacitor after glycerin at 20?C completely fills the volume between the plates
A shopper pushes a cart 44- m south down one aisle and then turns 90.0° west and moves 30 m. He then makes another 90° turn and moves 13 m.
What diameter must a helium filled balloon have to float with neutral buoyancy? The mass of the empty balloon is 2.0g
In a phyiscs lab experiment, a coil with 200 turns enclosing an area of 13.7cm2 is rotated during the time interval 3.7E-2 from a position, What is the magnitude of the total magnetic flux
A 55kg pole vaulter running at 10m/s vaults over the bar. If the vaulter's horizontal component of velocity over the bar is 1.10m/s and air resistance is disregarded, how high was jump.
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