A hammer is dropped on PlanetX. If the hammer has a mass of 3kg and a weight of 9n, what is the gravitational acceleration of Planet X and is it more or less than that of earth?

What is the velocity (m/s) after 5 seconds of fall

Use the graph to determine the velocity of the object. What is the instantaneous velocity of the object at 3 seconds? m/s What is the average velocity of the object? m/s

What is the potential difference across a 10 ohms resistor if the current in the resistor is a 3.0 A

Coulomb's law is expressed mathematically as

A motor produces less mechanical energy than the energy it uses because the motor?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries

Is a lung a living organism, why or why not?