Mass of an object on earth is 50 kg. What will be its mass on the moon? On Sun? The gravitational acceleration on earth is 9.8 m/s/s. The moon exerts a gravitational acceleration about 116th as
strong as that of Earth while the massive Sun generates an acceleration nearly 28 times that of Earth.

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

Which type of wave can travel without a medium

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system