At what angle with the ground should a projectile be thrown to reach the maximum distance? a.) 0° with the ground b.) 45° with the ground c.) 62° with the ground d.) 82° with the ground

One mole of an unknown sample contains 120 g of carbon and 30.3 g of hydrogen. What is the empirical formula of the compound?

List three examples each of objects that are commonly measured by mass by volume and by length

Two objects gravitationally attract with a force of 10N. If the distance between the two objects center is doubled, then the new force is

How do elements vary across a period

The unit of force is ... Friction is a force which is created when ... Friction is a force which ... Moving objects and may prevent objects from starting to move.

Difference between force and weight

Which of the following best describes work being done by someone's arms? a. a child building a sand castle b. a mother holding a baby c. a boy pushing on a tree d. a traveler carrying luggage

A hockey puck has a mass of 0.121 kg and is at rest. a hockey player makes a shot, exerting a constant force of 32.5 n on the puck for 0.16 s. with what speed does it head toward the goal? m/s

Which is an example of convection

Before radiant energy can be converted to thermal energy, it must be changed to what