An empty propane tank dropped from a hot air balloon hits the ground with a speed of 143.8 m/s. from what height was the tank released?

Which of the following materials would generate the strongest magnetic field if used as the core? silicon plastic carbon iron

when you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff legged landing.

A wave where the particles of matter in the medium move in a parallel direction to the m A) Transverse wave B) Frequency C) Wavelength D) longitudinal wave

A loop of wire is perpendicular to a magnetic field such that the field is coming straight at you through the loop. The field begins to decrease in magnitude.

Hypothesize about human impact on each of earth systems

A 6.0-kg ball is sliding to the right at 25.0m/s and strikes a second ball (15-kg) that is initially at rest head-on. After the collision, the 6-kg ball moves to the left at 12.5m/s. What is velocity of the second ball?

At a certain harbor, the tides cause the ocean surface to rise and fall a distance d (from highest level to lowest level) in simple harmonic motion, with a period of 12.4 h. how long does it take for the water to fall a distance 0.

What is the average speed of an object with a total distance traveled of 45 meters in 50 seconds

Some machines do not multiply the force that is applied to them

An automotive research facility is testing a new design on bumpers to determine the force at which it will break.