A man walks 54.5 meters east, then another 30 meter east. Calculate his displacement relative to where he started.

Milk has a density of 1.035 g/ml and olive oil has a density of 0.850 g/ml. Which has more mass

To withstand "g-forces" of up to 10 g's, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a "human centrifuge." 10 g's is an acceleration of 98m/s2. Part A If the length of the centrifuge arm is 10.

A child is sliding down a slide at the playgound. is mechanicalenergy conserved

How do plants and animals rely on each other to maintain the atmospheric oxygen and carbon dioxide content?

How o astronomers gather information to establish the hubble law?

Venus's average distance from the sun is 0.72 AU and Saturn's is 9.54 AU. Calculate the orbital velocity of Venus and Saturn around the sun. (The mass of the sun is 1.99 X 10^30 KG. an AU is 1.50 X 10^11 M.

Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer? Electromagnetic waves can carry energy through matter. Electromagnetic waves can travel through empty space.

Why do different elements emit different colors of light

In an experiment, 108 J of work was done on a closed system. During this phase of the experiment, 79 J of heat energy was added to the system. What was the total change in the internal energy of the system?