If ball A rolls off a 50 cm high table at the same instant that ball B rolls off a 75 cm high table, which will hit the ground first?

What is the equation for electrical work?

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm

Does the earth behave like a magnet how do you prove it