What is the mass of an object traveling at 20 m/s with a kinetic energy of 4000 J?

The police department is excited to have some new motorcycle as units. One officer said that these motorcycles can go from 0 miles per hour to 80 miles per hour and just 6 seconds the officer is describing the motorcycle.

What is a voltage source

What three quantities does Newton's 2nd law relate?

In what order do the earth, sun, and moon line up in a totla solar eclipse

Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. What is the electric potential across an 8.00~/text{nm}8.00 nm-thick membrane if the electric field strength across it is 7.13~/text{MV/m}7.

What happens if a hypothesis is not supported?

a group of elements that stretch bend and conduct heat and electricity

A rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 615.0 g. what is the volume and density of the block? (answer it with correct numbers of significant figures)

Which of the following are products of cellular respiration? Sunlight Oxygen ATP Water Carbon Dioxide

Do magnetic field lines ever start or end anywhere?