Why does a dropped feather hit the ground later than a rock dropped at the same time? *

The weight of the rock

The mass of the rock

The air resistance on the feather

Feathers are designed for flight

Scientific notation for 7890

Sustained exercise can increase the blood flow rate of the heart by a factor of five with only a modest increase in blood pressure. This is a large change in flow.

The light bulbs in most homes are all rated for 120 V, no matter how many bulbs there are. How is the ability to use any number of same voltage bulbs affected by the way in which the bulbs are wired (series or parallel)

A 747 airliner reaches its takeoff speed of 173 mi/h in 35.2 s. what is the magnitude of its average acceleration

In a head-on collision between two vehicles, is there a force acting on the persons in the car that propels them toward the windshield? Explain why or why not.

Ethylene (C2H4) reacts with oxygen gas to produce carbon dioxide and water. 45.0 grams of ethylene reacts, how many grams of carbon dioxide gas will be produced?

What causes ice to melt and water to boil

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.