Find the frequency of a sound wave moving in air at a speed of 344m/s, at a temperature of 22°C with a wavelength of 0.667m.

What does heterozygous mean

What is the impulse of a 2 kg object that starts at 10 m/s and comes to a stop over 0.4 seconds?

How would the velocity of the book change if the applied force were equal to the sliding friction force

Why can you not measure the volume of water in the measuring cylinder accurately unless you look straight at the scale?

The pilot of an airplane traveling 180km/h wants to drop supplies to flood victims isolated on a patch of land 160 m below. The supplies should be dropped how many seconds before the plane is directly overhead?

He is the chemical symbol for which element? Select one: a. hydrogen b. hassium c. helium d. hafnium

If two electrons in the same atom have the same four quantum numbers, then they must have the same energy. a. trueb. falsec. They cannot both have the same four quantum numbers.

A 6.0 m wire with a mass of 50 g, is under tension. A transverse wave, for which the frequency is 810 Hz, the wavelength is 0.40 m, and the amplitude is 4.0 mm, is propagating on the wire.

Which has the greater change in momentum, a 50 gram clay ball that strikes a wall at 1 m/s and sticks or a 50 gram superball that strikes the wall at 1 m/s and bounces away at 0.8 m/s. Explain?

What human activity promotes the evolution of organisms that are resistant to certain chemicals?