Give several examples of a mechanism, machine or system that has two

or more simple machines working together to complete work.

How are the magnets able to have zero resistance

Which of the following types of stars had the smallest initial mass? Blue main sequence Neutron star Red supergiant White dwarf

How does the location of the outer planets explain their composition and characteristics?

What is the intermingling of one substance within another

How does sodium (Na) becomes an ion?

Which of the following statements is true regarding the use of refrigerants? a. if your equipment is recovery only, refrigerant that is removed from vehicles should be poured down the drain b.

When would the velocity of a wave traveling in a medium change? A - only if a property of the wave changes B - only if a property of the medium changes C - if a property of both the wave and the medium changes D - never

If the moon did not have an atmosphere what would happen to it

a 2.0 kg mass moving to the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0 kg mass. how much kinetic energy is lost during

How did people years ago find out which side of a magnet was north and which was south?