A 1.2 m long wave travels 11.2 m to a wall and back again in 4.0 s. What is the FREQUENCY of the wave*

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

What determines the amount of inertia an object has

What are the similarities & differences between a thermistor and a light dependent resistor in physics?