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A mountain climber, who has has physics in high school, figures out the gravity at his location in the mountains. He used a 4.0 m length of string and found that with a rock tied at its end , its period as a pendulum was 4.1 seconds. What was gravity at his location?
a 32.0 kg child slides down a long slide in a playground. she starts from rest at a height h1 of 20.00 m. when she is
Your friend's Frisbee has become stuck 19m above the ground in a tree. You want to dislodge the Frisbee by throwing a rock at it. If you release the rock 1.7m above the ground, with what minimum speed must you throw it
A brand of earplugs reduces the sound intensity level by 28dB. By what factor do these earplugs reduce the acoustic intensity
A coin placed on a turntable rotating at 33.0 rev/min will stay there if its center is placed no further than 7.2 cm from the axis of rotation. What is the maximum distance the center of the coin can be placed from the axis
A compact disc rotates from rest up to an angular speed of 31.4 rad/s in a time of 0.892 s. What is the magnitude of the tangential acceleration
In a series LRC circuit the rms voltage across the resistor is 80.0 V, across the capacitor is 120 V, and across the inductor is 60.0 V. If 1.50 an rms is flowing in this circuit, what is the average power dissipated?
q1. an electric field is set up between two parallel plates each of area 2.2 m2 by putting 1.0 c charge on one plate
algebracially prove thata b a c b c a b a b c a bno truth table is
The power and voltage ratings of a particular light bulb, which are its normal operating values, are 110 Volt and 60 Watt. compute the operating voltage of the bulb
a wheel is spinning freely on its axis with an angular velocity w of 2 rad/s. What is its renitic energy if the angular velocity is increased to 10 rad/s
a jet fighter plane is launched from a catapult on an aircraft carrier. it reaches a speed of 42 ms at the end of the
A room is 20 ft, 2in. long and 12 ft, 5 in, wide, and the ceiling is 12 ft, 2.5 inches above the floor; what is the volume of the room in cubic feet
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