The amount of carbon dioxide released into the atmosphere is balanced by the release of:

nitrogen

carbon

oxygen

phosphorous

A stone is thrown down off a bridge with a veloctiy of 5.6m/s. What is the velocity afer 3 seconds have passed?

It has made us think we have to live perfect lives?

In the alpha decay of Francium-221, what daughter element is produced? (You may need to refer to the periodic table in the lesson.)

Suppose if you whirl a yo-yo about your head in a horizontal circle. in what direction must a force act on the yoyo? What exerts the force?

When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, activator portion of the instant cold pack releasing the solid urea into the surrounding water.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?

According to bohr's theory, how do electrons move around the nucleus

On a very hot summer day, railroad tracks can buckle, causing train delays and derailments. Select the best reason below for the buckling.

How long will it take you to swim 100 meters if you swim at a speed of 12.5 m/s?

What are the two factors that determine an objects gravitational potential energy