suppose ahypothetical planet revolve about ahypothetical star along circular orbit of radius four times ten the power of ten meter .if the period of rotation of the planet is 25 year calculate the mass of the star.​

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.