A rock rolls down a steep hill. Its intial velocity is 1 meter per second. By the time it reaches the bottom of the hill 30 seconds later. Its velocity is 7 meters per second. What is the acceleration of the rock

A gas with volume of 3 L and a pressure of 1 atm is moved to a new environment where the gas's volume decreases to 1.50 L. What is the new pressure on atm assuming temperature is held constant

Which car company was the first to offer air conditioning in its cars?

What is net force? How do you calculate net force?

Two violin strings are tuned to the same frequency, 277 Hz. The tension in one string is then decreased by 1.92 percent. What will be the beat frequency heard when the two strings are played together?

What is the relationship between electricity and magnetism? A. A moving magnet creates a current, and a still magnet creates a current. B. A moving magnet creates a magnetic field, and an electric current makes electrons stand still. C.

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity

The observation location A is located at m. The conventional current running through the wire is 7.5 amperes. In this exercise you will calculate the magnetic field at the observation location due only to segment 4 of the wire.

The wavelength of a light wave can be used to measure which of the following? A. The direction the wave is traveling B. How many photons the wave contains C. How much energy the wave has D. How high the top of the wave is

Sound 1 has an intensity of 38 W/m2. Sound 2 has an intensity level that is 2.5 dB greater than the intensity level of sound 1. What is the intensity of sound 2?