The hubble telescope’s orbit is 5.6 × 105 meters above earth’s surface. the telescope has a mass of 1.1 × 104 kilograms. earth exerts a gravitational force of 9.1 × 104 newtons on the telescope. the magnitude of earth’s gravitational field strength at this location is

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Why is a noble gas different from other elements?

An astronaut on the moon throws a baseball upward. the asatronaut is 6ft, 6in. tall, and the initial velocity of the ball is 30ft per second. the heigh s of the ball in feet is given by the equation s = -2.7^2 + 30t + 6.5, where t is the number of seconds after the ball was thrown. after how many seconds is the ball 16ft above the moon's surface?