An object initially at rest experiences an acceleration of 9.8m/s2. How much time will it take it to achieve a velocity of 49m/s?

What is a scientific theory

A) A 5.00-kg squid initially at rest ejects 0.250 kg of fluid with a velocity of 10.0 m/s. What is the recoil velocity of the squid if the ejection is done in 0.100 s and there is a 5.

If a string completes 500 vibrations in one second, what is its frequency?

A hollow cubical box is 0.766 m on an edge. This box is floating in a lake with 1/6 of its height beneath the surface. The walls of the box have a negligible thickness. Water is poured into the box.

If an object is traveling along at a constant velocity and there is friction acting on the object, what can be concluded about the forces acting on this object?

When air pressure is lower what happens to a balloon filled with air

Determine the power input for a motor necessary to lift 300 lb at a constant rate of 7 ft/s. the efficiency of the motor is ϵ = 0.65.

The thermal contact resistance at the interface of two 1-cm thick copper plates is measured to be 0.000056 m2K/W.

A provides resistance in an electric circuit. a. wire b. light bulb c. switch. d. battry

Why is it good for scientist to be skeptical