The mechanical advantage of a wheel and axle is the radius of the wheel divided by the radius of the axle. on wheel and axle a, the wheel and axle are very close in size. on wheel and axle b, the radius of the wheel is much greater than the radius of the axle. which wheel and axle has the greater mechanical advantage?

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.