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A skater stands at rest in a skating rink, and throws a baseball (m=.15 kg) at a speed of 35 meters per second. If the mass is 50 kg, and if you neglect friction, what recoil velocity will the skater have?
A rectangular coil of 58 turns, dimensions 0.100 m by 0.200 m, and total resistance 10.0 ? rotates with angular speed 35.0 rad/s, Calculate the maximum induced emf in the coil
You're riding on a carousel ("merry-go-round") that is rotating at a constant 6.00 rpm. By what factor (multiplier) have you changed the magnitude of your total acceleration
Assuming that the total energy consumption scales in the same way as BMR, how many Calories are needed by the person weighing 150 lb
A simple 2.32 m long pendulum oscillates. The acceleration of gravity is 9.8 m/s2. How many complete oscillations does this pendulum make in 5.58 min
the train passes point a with a speed of 30 ms and begins to decrease its speed at a constant rate of at -0.25 ms2.
A surveyor is using a magnetic compass 6.5 m below a power line in which there is a steady current of 100 A. What is the magnetic field in microteslas at the site of the compass due to the power line?
A wire has a length of 8.80 10-2 m and is used to make a circular coil of one turn. find the maximum torque that this coil can experience
Using a wheel and axle machine, a force of 100 N applied to the rim of a wheel can lift a load of 80 kg .The diameters of the wheel and axle are 1 m and 80 cm respectively. Determine the actual mechanical advantage, and the efficiency of the mac..
A 0.700 kg ball is on the end of a rope that is 1.30m in length.The ball and rope are attached to a pole and the entire apparatus,including the pole, rotates about the pole’s symmetry axis.The rope makes an angle of 70.0 degrees with respect to theve..
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.793 m and 2.97 kg, what is its rotational kinetic energy
Percy did 1000 joules of work and exerted a power of 2 watts. How many seconds did Percy take to do his work
A 3400 resistor and a 1.6 µF capacitor are connected in series across a generator (60.0 Hz, 120 V rms). Determine the average power dissipated in the circuit
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