What is a successful result of science?
a discovery
an experiment
curiosity

Which sound characteristic is not affected by the relative motion of an object

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.