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Assume that block C with mass mC is pushed to the left on a surface with a friction by a horizontally applied force Fapp and that the block is connected by a cord passing through a frictionless pulley to a hanging block D with mass mD. Draw the free-body diagram for each block. Indicate with a star the force acting on block D with the largest magnitude.
If the baseball exerts the force of 464N on the glove such that the glove is displaced 5.9 cm, how much work is done by the ball.
A figure skater is spinning at a rate of 1.0 rev/s with her armsoutstretched. What is her new rate of rotation
A gas is compressed at a constant pressure of 0.800 atm from 12.00 L to 3.00 L. In the process, 380 J of energy leaves the gas by heat. (a) What is the work done on the gas? J (b) What is the change in its internal energy?
A person pulls a toboggan for a distance of 34.8 m along the snow with a rope directed 32.2 degrees; above the snow. The tension in the rope is 91.5 N. How much work is done on the toboggan
You are at a rock concert, and the sound intensity reaches levels as high as 120 dB. Calculate the amplitude of this oscillating force
a surface is so constructed that at all points on the surface the vector points outward. therefore it can be said
A 0.80 -long metal rod is dropped vertically onto a marble floor. When the rod strikes the floor, it is determined electronically that the impact produces a 5 kHz-tone. What is the speed of sound in the rod?
Particles of charge Q1 = +65 µC, Q2 = +43 µC, and Q3 = -80 µC are placed in a line. The center one, Q2, is 0.35 m from each of the others. find the net force on each charge due to the other two
question suppose you carry a bag of groceries weighing 151 n from your car to your kitchen a distance of 38 m without
A .7700kg ball is thrown straight up withinitial velocity of 8.720m/s. at the balls peak a .07kg dart,travelling parallel to the ground, How far away from the ball's original position do they land
A farmer throws a sack of wheat vertically downward with an initial speed of 12 m/s from the roof of a mill, 30.0 m above the ground. What is the speed of the sack at impact
when light of wavelength 300 nm is incident upon potassium the emitted electrons due to the photoelectric effect have a
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