Showing 51 to 60 of 196 Questions

How long must a simple pendulum be if it is to make exactly one swing per second? (That is, one complete vibration takes exactly 2.0s)
0182 
A pendulum has a period of 0.80s on Earth. What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth?
0654 
What is the period of a simple pendulum 80 cm long (a) On the Earth, and (b) When it is in a freely falling elevator?
0224 
The length of a simple pendulum is 0.760m, the pendulum bob has a mass of 365 grams, and it is released at an angle of 12.0o to the vertical(a) With what frequency does it vibrate? Assume SHM.(b) What is the pendulum bob’s speed when it passes through the lowest point of the swing?(c) What is the total energy stored in this oscillation,
1922 
Your grandfather clock’s pendulum has a length of 0.9930m. If the clock loses half a minute per day, how should you adjust the length of the pendulum?
0635 
Derive a formula for the maximum speed Vmax of a simple pendulum bob in terms of g, the length L, and the angle of swing θ0.
0438 
A clock pendulum oscillates at a frequency of 2.5 Hz. At t = 0, it is released from rest starting at an angle of 15o to the vertical. Ignoring friction, what will be the position (angle) of the pendulum at (a) t = 0.25s,(b) t = 1.60s, and (c) t = 500 s?
2528 
A fisherman notices that wave crests pass the bow of his anchored boat every 3.0s. He measures the distance between two crests to be 6.5 m. How fast are the waves traveling?
4340 
A sound wave in air has a frequency of 262 Hz and travels with a speed of 343m/s. how far apart are the wave crests (compressions)?
0208 
(a) AM radio signals have frequencies between 550 kHz and 1600 kHz (kilohertz) and travel with a speed of 3.00 X 108 m/s. What are the wavelengths of these signals?(b) On FM, the frequencies range from 88.0 MHz to 108 MHz (megahertz) and travel at the same speed; what are their wavelengths?
0824