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Andy is moving a 12.7 lbf box on a wooden floor by pushing the box with 2.4 N of force forward and down at an angle 4.4o with respect to the floor. The box is moving with a constant speed of 0.3 m/s. What is the magnitude of the force of friction among the box and the floor?
An astronaut in space cannot use conventional means, such as a scale or balance to determine the mass of an object. What is the mass of this canister
A wheel, starting from rest, rotates with a constant angularacceleration of 2.70 rad/s2. What was the angular velocity of the wheel at thestart of the 3.00 s interval
a transverse wave travels on a string in the positive x-direction. the tension in the string is 200 n and the linear
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. Determine how far must he now travel to reach base camp
A rock is dropped from a bridge to the water below. It takes 2.4 s to hit the water. Find the final speed of the rock when it hits the water. How high is the bridge above the water
A 16.0-m uniform ladder weighing 490 N rests against a frictionless wall. Find the horizontal and vertical forces the ground exerts on the base of the ladder
Scientists want to place a 4200 kg satellite in orbit around Mars. What is the force of attraction between Mars and the satellite
Two parallel wires are 61 cm apart. Each wire is 4 cm long. One wire is a carrying a current of 23 A and the other wire is carrying a current of 21 A. Both currentsare going in the same direction. Determine the force between the two wires.
A small loop of wire of radius a lies a distance d from the center of a large loop of radius b. Suppose current I flows in the small loop. Find the flux through the big loop
Suppose a tank contains 626 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa. The temperature is changed from 293.2 to 293.8 K. What is the increase in the internal energy of the neon
Two circular coils are concentric and lie in the same plane. The inner coil contains 92 turns of wire, has a radius of 0.018 m, and carries a current of 5.5 A. The outer coil contains 110 turns and has a radius of 0.032 m. What must be the magnitude ..
a a bullet m 0.0230 kg is fired with a speed of 99.00 ms and hits a block m 2.60 kg supported by two light strings
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