Which is a good example of contact force?

How does the gravitational force between two objects change if the distance between the objects is doubled?

What is the formula used to calculate displacement?

What is diffraction? What type of lenses are there?

A 2130-kg space station orbits earth at an altitude of 549000 m. find the magnitude of the force with which the space station attracts earth. the mass and mean radius of earth are 5.98 * 1024 kg and 6370000 m, respectively.

Which type of intelligence is required the most by a surgeon?

An object becomes charged when the atoms in the object gain or lose. True or False

A container has 79000cm3 of mercury. Find the mass of mercury if the density is 13.6g/cm3

Explain how the movement of groundwater is related to the water cycle.

Two masses are attracted by a gravitational force of 400 N. What will the force of attraction be if each of these two masses is halved?

What kind of light would be the best to use to look inside a cold dark cloud and see the warm stars forming inside?