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A particle travels 19 times around a 10-cm radius circle in 36 seconds. What is the average speed (in m/s) of the particle?
A mass of 0.2 kg attached to a spring oscillates on a frictionless horizontal surface. Its motion is described by x = 0.05 m cos(50 rad/s t + 1.57 rad). find the force constant and the mechanical energy
A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes that it takes 3.20 s for the ball to reach its maximum height. Find the ball's initial velocity
A 3.7 L volume of ideal neon gas (monatomic) is at a pressure of 2.9 atmospheres and a temperature of 330 K. The number of neon atoms in the gas is closest to
The internal energy of a system increases by 100 J while 800 J of work are performed on it. What was the heat flow into or out of the system
An apple is dropped from a 25m cliff. At the similar time, a person at the bottom of the cliff fries an arrow up towards the apple. The arrow sticks the apple 0.450 seconds later.
the pontential difference across the terminals of a battery is 8.4V when there is a current of 1.50A in the battery from the negative to the positive terminal. what is the emf of the battery
A rabbit runs in the straight line with a velocity of +1.6 m/s for a period of time, rests for 12 s, and then runs again along the equivalent line at +0.52 m/s for an unidentified amount of time. The rabbit travels the total distance of 1224 m, and i..
Find the net force on the Moon (mM = 7.35 × 1022 kg) due to the gravitational attraction of both the Earth mE = 5.98 × 1024, Determine the direction of the net force
Two speakers, one directly behind the other, are each generating a 245-Hz sound wave. What is the smallest separation distance between the speakrs
A 1600 kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16430 N on the sub, with a downward resistive force of 1000 N. What is the submarine's acceleration.
a 5 kg mass is attached to the end of a 1.0-m string. The system is whirled in a horizontal circular path. What is the maximum speed of the mass if the string is not to break
What are ranges of wavelength and frequency
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