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A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of static and kinetic friction between the hockey puck and the metal ramp are µs = 0.40 and µk = 0.30, respectively. The puck's initial speed is 63 m/s. What vertical height does the puck reach above its starting point?
A single circular loop of radius 0.23m carries a current of 2.7A in a magnetic field of 0.96T. What is the maximum torque exerted on this loop
A closed ended manometer is used to measure the pressure in a tank of gas. what is the gauge pressure (in Pa) in the tank
A capacitor (capacitance C1) is connected across the terminals of an ac generator. Without changing the voltage or frequency of the generator, a second capacitor (capacitance C2) is added in series with the first one.
a standing wave oscillating on a string at frequency f_0. How many antinodes will there be if the frequency is increased to 3f_0
Does the growth of a plant or animal violate the second low.
A 1000kg car traveling at a speed of 40m/s skids to a halt on wet concrete where the friction force is 6000N
At the instant of engine burnout, the rocket has risen to 52 m and acquired a velocity of 40 m/s. The rocket continues to rise in unpowered flight, reaches most height and falls back to the ground.
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
Runner A is at first 6.60 km west of a flagpole and is running with a constant velocity of 6.4 km/h due east. Runner B is firstly 7.20 km east of the flagpole and is running with a constant velocity of 8.80 km/h due west.
A centrifuge in a medical laboratory rotates at an angular speed of 3450 rev/min. Find the constant angular acceleration of the centrifuge
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 39.2m/s2. Find the maximum height ymax reached by the rocket
Four spheres are arranged as in the figure in the corners of a 2cm-side square, How much work is required to move a tiny charge of 10nC from C to A
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