Are waves created by vibration

The speed of a sound wave in seawater is approximately 1500 m/s. If this wave is transmitted at 10 ms-1, what is its wavelength? Answer in units of cm

In a department store an airstream from a hose connected to the exhaust of a vacuum cleaner blows upward at an angle and supports a beach ball in midair. Does the air blow under or over the ball provide support

Explain why semiconductors, or metalloids, deserve their name.

In the textbook we learned the definition of acceleration, a=Δv/Δt, and we learned that the cause of acceleration involves net force, where a=F/m. Equate these two equations for acceleration and express, for constant mass, FΔt

A vw beetle goes from 0 to 60 mi/h with an acceleration of 2.35 m/s^2. a. how much time does ti take for the beetle to reach 60 mi/h? b. a top - fuel dragster can go from 0 to 60 mi/h in 0.600 seconds. find the acceleration (m/s^2) of the dragster.

Given that 5.0 resistor, a 9.0 resistor, and a 13.0 resister are connected in series with a 24.0 V battery, calculate the current in each resistor.

The electric current running through the wire coil in an electric motor exerts force directly onto A) the battery. B) an aluminum axle. C) a powerful magnet. D) a rubber insulator.

a copper rod of length 27.5 m has its temperature increases by 35.9 degrees celsius. how much does its length increase? (unit=m)

The driver of a train moving at 23m/s applies the breaks when it pases an amber signal. The next signal is 1km down the track and the train reaches it 76s later. The acceleration is - 0.26s^2. Find its speed at the next signal.

Asteroids move much slower and less frequently than stars. a. True b. False