Two satellites in orbit have a gravitational force between them of 5.5E-11 N when they are 1500 meters apart. If one has a mass of 1200 kg, what is the mass of the other satellite?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?