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Two players hit an air hockey puck simultaneously. One player hits the puck with a force = 4.75 at an angle = 23.9. The other player hits the puck with a force = 7.35 at an angle = 67.3. If the puck has a mass = 36.0 , what is , the acceleration of the puck, and , the angle of the puck's motion? The friction between the puck and the table's surface is negligible.
A runner runs 3.0 km, in a straight line, in 9.0 min and then takes 25 min to walk back to the starting point. What is the average speed for the whole trip
A 400 ohm resistor and a 6.00 uf capacitor are connected in parallel to and AC generator that supplies a voltage of amplitude 310 V at an angular frequency 57.3 Hz. Find the current amplitude in the resistor.
A friend of yours is loudly singing a single note at 410 Hz when racing toward you at 26.1 m/s on a day when the speed of sound is 339 m/s. What frequency does your friend hear if you suddenly start singing at 410 Hz.
Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and connected in parallel. Then the plate separation in one of the capacitors is doubled. (Use DeltaV for ?V and C as necessary.) (a) Find the..
A doubly charged helium atom whose mass is 6.6 *10^-27 kg is accelerated by a voltage of 3000V, What will be its radius of curvature
A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.
Louie Lemon rides on a Ferris wheel that takes 8.0 s to go once around; the radius of the wheel is 10.0 m. What is Louie's acceleration (magnitude and direction) when he reaches the lowest point of the ride
A board of mass 20 kg and length 4 m is supported by two scales, one a t the left end of the board, and the other at 3 m from that end. What is the reading on the scale at the left end
A car accelerates uniformly from rest to a speed of 40.0 mi/h in 12.0 s. Find (a) the distance the car travels during this time and (b) the constant acceleration of the car.
0.150kg stone rests on a frictionless, horizontal surface. A bullet of mass 5.00g , traveling horizontally at 380m/s , Compute the direction of the velocity of the stone after it is struck
Space probes communicate with controllers on Earth using radio waves. How fast is the probe traveling and is it traveling towards or away from Earth
how to convert ac current to dc current? is there any conversion factor? how to select an autotransformer for dc motors
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