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On a frictionless, horizontal air table, puck A (with mass0.250 kg) is moving toward puck B (with mass 0.330 kg),which is initially at rest. After the collision, puck Ahas a velocity of 0.120 m/s to the left, and puck B has avelocity of 0.830 m/s to the right.
a) What was the speed of puck Abefore the collision?b) Calculate the change in the total kinetic energy of the systemthat occurs during the collision.
A figure skater begins spinning counter clockwise at an angular speed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval?
A motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 m/s2, How much time elapsed from the initial braking to the collision
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suppose after charging a 14.4 microf capacitor to 15 v you connect it to another already charged capacitor of 7 microf
Status Newton's First Law of motion.
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Conisder the Earths magnetic field (53 uT) at a point near the equator where the field is horizontal, Calculate the velocity, V of this proton
a uniform magnetic field b with magnitude 0.012 t is directed vertically upward throughout the volume of a laboratory
A 120- crate, starting from rest, is pulled across a floor with a constant horizontal force of 380. What is the final speed of the crate
A mass of 1.0 kg is dropped from a height of 8.0 m above the top of a spring of constant k=200 N/m mounted vertically on the floor. Find the springs maximum compression
A 12.1-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.6 m/s, find the rotational kinetic energy about its center of gravity
you accelerate your car starting from rest. while the car is increasing its speed, the frictional force acting from the road on the tires? A) directed backword, opposing the motion B)IS directed vertically uo, C) is directed forward, in the direct..
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