Why is it easy to remove air from balloon and is difficult to remove air from glass bottle

What type of resource can be regenerated or replenished by biochemicl cycles

Which title best reflects the main idea of the passage? The Role of Convection in the Distribution of Earth's Energy The Role of Heat Transfer Methods in the Distribution of Earth's Energy Conduction, Convection, and Radiation: Methods of Heat

Two vectors, of magnitudes 20 mm and 50 mm, are added together. Which one of the following is a possible value for the magnitude of the resultant? a. 10 mm b. 20 mm c. 40 mm d. 80 mm

Energy is the ability to A. do work. B. exert force. C. transfer heat. D. create or destroy matter.

How do you give an example for finding net force?

How does gravity influence our annual calendar?

A 0.500 kg block is sitting on a horizontal, frictionless surface. The block is connected to a horizontal spring with a force constant of 124 N/m. The other end of the horizontal spring rests against a wall. When a 100.

The velocity of waves in a ripple tank of a particular depth of water is 20 centimeters per second, and standing waves are produced with nodes spaced 2.0 centimeters apart. what is the frequency of the wave generator?

If a wave is generated in a Slinky and the wave hits a wall, the reflected wave will be

While spinning in a centrifuge a 70.0 KG astronaut experiences an acceleration of 2.00g, or twice the acceleration due to gravity on the earth. What is the centripetal force acting on her? A.) 6.86*10^3N B.) 1.37*10^3N C.) 1.40*10^2N D.) 3.46*10^4N