Velocity is the speed and direction of an object.

* True

* False

If 34.7 g of O2 reacts with iron to form 79.34 g of iron oxide, how much iron was used in the reaction? A. 19.84 g B. 44.64 g C. 104.1 g D. 114.04 g

What are main causes by tornadoes

What features do all the resonance forms of a molecule or ion have in common?

This can best be explained due to A) density. B) friction. C) gravity. Eliminate D) inertia.

I'm new to brainy, but here is my question. Andre, whose mass is 77.1 kg, sits on a diving board above a dunk tank. If he is sitting 0.90 m above the water, what is his total mechanical energy?

The Jetsons are taking a family vacation. Their car gets 30 miles per gallon in gas mileage. They are traveling for seven hours at a rate of 55 miles per hour. Assuming no stops, how much gas will they need to complete their seven hour trip?

A 2000kg car travelling east at 24/ms enters an icy intersection and collides with a 3600kg truck travelling south at 10 m/s. If they become coupled together in the collision, what is their velocity immediately after impact?

A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from the roof a time of 1.19s later. You may ignore air resistance.

Velocity is the speed and direction of an object. * True * False

You are asked to burn a gas using a Bunsen burner in order to boil water. Which f he following has no mass? A. Gas. B. Heat. C. Water. D. Water Vapor.