Suppose you squeeze a sponge into a small ball. does the mass of the sponge change? Does it's density change?

After traveling for 6.0 seconds, a runner reaches 10m/s. What is the runner's acceleration?

How long can the body maintain an anaerobic burst of energy

What factors affect the frictional force between objects?

Investigations allow for the control of variables.

Which gas became part of Earths atmosphere mainly as a result of the evolution of life forms?

While the cart is moving along an aisle, it comes in contact with a smear of margarine that had recently been dropped on the floor. Suddenly the friction force is reduced for - 40.0 newtons to - 20.0 newtons.

When a solo eclipse occurs. It is seen in

Newtons third law describes the forces between two colliding objects. use this connection to explain the forces acting when you kick a soccer ball

In the heat equation, what does c represent

5. A balloon is ascending at the rate of 4.9m/s. A pocket is dropped from the balloon when situated at a height of 245m. How long does it take the packet to reach the ground? What is its final velocity?