What is the wavelength of an earthquake wave if it has a speed of 9 km/s and a frequency of 2 hz?

A1,200 kg car is accelerated at 3.7 m/s2. what force was needed to produce this acceleration? a. 4,440 n b. 324.3 n c. 4,388 n d. 304.3 n

As the distance from a magnet increases, what happens to the magnet force?

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign