Why does a heavier aircraft have to move faster before it becomes airborne

A 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. What is it's kinetic energy (KE) when it lands?

What type of electricity is produced by rotating a coil at a steady rate in a steady magnetic field?

The moon has it the greatest effect on earths what?

What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? Question 15 options: A. The number of protons and neutrons B. The number of electrons only C. The number of protons and electrons D.

How is the temperature of an object related to the average kinetic energy of its particle?

Why did scientists choose carbon as a base for the atomic mass unit? Which isotope of carbon did they use?

What organelle is found in all animal cells and some plant cells

Basic of Archimedes's principle of how fluid can make body to float and sink.

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)

Your boss at the Cut-Rate Cuckoo Clock Company wants to save money on materials. You are asked to reduce the balance wheel, which is cylindrical, dimensions to one-third their original values.