What is the minimum energy needed to lift 1.0 kg to a height of200 km and to give it a speed of 8.9 km/s? (neglect the smackdecrease of "g" over the distance)a. 34 mjb. 34 gjc. 34 jd. 34 tje. 34 kj

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.