8. If the speed of a wave is 1500 m/s and its frequency is 200 Hz, what is the wavelength?

What objects reflect light in the sky?

How does a phased array allow you to locate the exact position of an object?

Which coefficient is needed in front of NaNO3 to balance the equation Na2S + Zn (NO3) 2 → ZnS + _NaNO3?

The line where the Earth and sky seem to meet forms the: A. zenith B. sky line C. horizon D. horizontal

A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. the player's foot is in contact with the ball for 1.6 * 10-3 s, and the force of the kick is given by f (t) = [ (7.0 * 104) t - (1.

Which type of radiation has the lowest penetrating ability?

For which one of the following situations will the path length equal the magnitude of the displacement? a A ball on the end of a string is moving in a vertical circle. b A toy train is traveling around a circular track.

A poem on the body system

How many stars, approximately, are in the solar system?

The ends of a magnet where the force is strongest are magnetic