Bats can detect small objects such as insects that are of a size on the order of a wavelength. If bats emit a chirp at a frequency of 44 kHz and the speed of soundwaves in air is 330 m/s, what is the smallest size insect they can detect

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

What is the temperature in degrees celsius of a substance with a tempature of 49k