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

14. A 8 kilogram rock is dropped off the top of a 25 meter tall building. What is the kinetic energy of the rock right before it impacts the ground?

An underground tunnel has two openings, with one opening a few meters higher than the other. If air moves past the higher opening at a greater speed than it moves past the lower opening, what happens inside the tunnel?

What is the total energy of a 850 kg sea plane flying at 38 m/s and 20 m above the ocean?

Football coaches advise players to block, hit, and tackle with their feet on the ground rather than by leaping through the air.

Matching questions 1. velocity 2. speed 3. gravity 4. deceleration 5. newton A acceleration in the opposite direction as the velocity of the object;

How does using a ramp to load boxes into a truck make work easier? A. Using the ramp increases the amount of force needed to move the boxes, but the boxes must be moved over a shorter distance. B.

If the mass of a material is 50 grams and the volume of the material is 12 cm^3, what would the density of the material be?

True or False? An airplane is flying West at 200 kilometers per hour 2 hours later it is flying West at 300 km/h its average acceleration is 100 kilometers per hour.

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

What is an example of radiation? check all that apply