gravity =9.8m/s

An astronaut on the Moon simultaneously drops a feather and a hammer. * 1 point The fact that they land together shows that: 0 no gravity forces act on a body in a vacuum 0 in absence of air resistance all bodies at given location fall with same acceleration O the feather has a greater weight on the Moon than on Earth 0 the acceleration due to gravity on the Moon is less than on Earth * 1 point When the tension on a piano Wire is increased, which of the following occurs? 0 Its wavelength decreases 0 Its wavelength remains the same while its frequency increases. 0 Its wavelength and frequency increase. 0 None of the above * 'I point When an object. is thrown up, the force of gravity 0 becomes zero at the highest point 0 is opposite to the direction of motion 0 increases as it rises up 0 is parallel to the direction of motion