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Thunder is heard 4.0 sec after the flash of lightning is observed. If the outside temperature is 15 degrees celsius, how far away was the lightning bolt?
An intergalactic rock star bangs his drum every 1.52 s. A person on earth measures that time between beats is 2.10 s. How fast is the rock star moving relative to the earth.
An unknown gas has a density of 1.584 kg/m3 at STP. (STP, for standard temperature and pressure, What is the gram molecular mass
The maximum speed of a 2.5-kg mass attached to a spring is 0.55 m/s, and the maximum force exerted on the mass is 11 N. What is the amplitude of motion for this mass
Estimate the phase difference between the sounds received by your ears when you are facing 90° away from the direction of the source
Two similar guitar strings have the same length and mass, but slightly different tensions, If the beat frequency is 1.5 Hz, what is the ratio of the tensions of the two strings
A 1 cm3 air bubble at a depth of 280 meters and at a temperature of 4 oC rises to the surface of the lake, what is its new volume? How many micromoles (to 1 decimal place) of air are in the bubble
250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor?
Take element Z = 21 from the periodic table. Ionize it 20 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
An LC circuit with a 4.90 pF capacitor oscillates in such a manner as to radiate at a wavelength of 3.50 m. What inductance is in series with the capacitor
What is the oscillator's total mechanical energy as it passes through a position that is 0.749 of the amplitude away from the equilibrium position
A 0.200 kg block is placed on a vertical spring (k = 5.80x 10^3 N/m) and pushed downward, compressing the spring 0.100 m. As the block is released, it leaves the spring and continues to travel upward. What height above the point of release will bl..
A person jumps up and down on a trampoline, while staying in contact with it. The motion is simple harmonic motion and it takes 1.90s to complete one cycle.
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