A helium balloon has a pressure of 40 psi at 20 degrees Celsius. What will the pressure be at 40 degrees Celsius?

Assumption of projectile motion

a = v1-v2/t equation is the equation for calculating the acceleration of an object. Write out the relationship shown in the equation, using words.

Forces are measured in Newtons (N). Why are forces considered to be vectors?

Newtons seconf law states that f=ma (fierce time acceleration). which example would best have the greatest acceleration A) a 10kg ball thrown with a 50 newton force B) a 1kg ball thrown with a 0.5 newton force C).

A 2.9 * 103 kg car accelerates from rest under the action of two forces. One is a forward force of 1148 N provided by traction between the wheels and the road. The other is a 941 N resistive force due to various frictional forces.

Determine which factors will increase the reaction rate and which factors will decrease te reaction rate.

Read the paragraph below from the section "An Object At Rest Has Potential Energy Potential energy is the energy an object rgy is the energy an object has because of its position. It is energy that is waiting to be released.

Briefly describe the history of the metric system as it applies to the meter and how the definition of a meter has changed over time.

Visible light is an example of?

What were the discoveries of astronomers like Copernicus and Galileo?