What did Galileo discover when he dropped two cannon balls of different weights from the Leaning Tower of Pisa?

How much time does it take to travel from the position of 25m to a position of 100m at an average speed of 15m/s?

A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car's motion, the eastward component of the car's velocity is given by vx (t) = (0.890m/s3) t2.

a bus is moving with a constant velocity 10m/s along horizontal rode. a man standing inside bus throws ball virtically upward with valocity 8 m/sec WRT tohimself and cathes the ball. the magnitude of displacment of ball WTR ground will be

Classify which is specific defense or nonspecific defense: - skin - macrophages - bacteria - mucous - fever - B cells - T cells - antibodies

Find the wavelength of the balmer series spectral line corresponding to n = 15.

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N

Which force keeps you near earths surface?

Name one process that requires a force in the human body.