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A certain groove in a phonograph record moves past the needleat 30 cm/s. If the wiggles in the groove are 0.1 mm apart, what is the frequency of the sound that is produced?
A single-turn square loop of wire, 2.00 cm on each edge, carries a clockwise current of 0.170 A. Find the force on each side of the loop
A musician plays a string on a guitar that has a fundamental frequency of 330.0 Hz. The string is 64.2 cm long and has a mass of 0.316 g. At what speed do the waves travel on the string
An electron starts from rest 72.5 cm from a fixed point charge with Q = -0.200 µC. How fast will the electron be moving when it is very far away
A professor drives off with his car (mass 900 kg), but forgot to take his coffee mug (mass 0.33 kg) off the roof. What is the maximum acceleration of the car
Assume that the intensity of solar radiation incident on the cloudtops of the Earth is 1340 W/m^2. Calc the total power radiated by the Sun, taking the average Earth-sun separation to be 1.496 * 10^11 m.
a heavy flywheel rotating on its central axis is slowing down because of friction in its bearings. find its rotational speed at the end of the second minute
Two steel wires are stretched under the same tension. The first wire has a diameter of 0.515 mm, and the second wire has a diameter of 1.19 mm. If the speed of waves traveling along the first wire is 46.0 m/s, what is the speed of waves traveling alo..
The partial pressure of CO2, in the expired air is 25 mm Hg and in the alveolar air it is 39 mm Hg. For an expired volume of 550ml, calculate the dead space volume
I just got this wrong for the third time. A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure.
A 270 ball and a 520 ball are linked by a 50.0-cm-long massless, rigid rod. The structure rotates about its center of mass at 120 rpm. What is its rotational kinetic energy.
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the acceleration of the yellow car
You are driving down the road when you see a deer in your headlights. It takes you 0.5 seconds to react. Once you react you start braking, and you decelerate at 3m/s2. What was your speed before you hit the brakes
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