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The space shuttle is in a 250km -high circular orbit. It needs to reach a 700km -high circular orbit to catch the Hubble Space Telescope for repairs. The shuttle's mass is 8.00×104kg.
How much energy is required to boost it to the new orbit?
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
A wheel spinning at 25 rev/s is slowed to a stop by a constant acceleration while turning 50rev. What is the magnitude of the constant acceleration
A 70-kg man and a 55-kg woman holding a 2.50-kg purse on ice skates stand facing each other. What is the woman's recoil speed
Two masses, m1 and m2 are connected by a cord and hang straight down from either side of a light frictionless pulley. What is the acceleration of the system
The block starts at the top of the wedge at 1.2 m. Find out the final speeds of a block and the wedge once the blook has slid to the bottom.
An astronaut on the Mars attaches a small brass ball to a 1.00- length of string and makes a simple pendulum. She times 13 complete swings in a time of 35.4 seconds. From this measurement she calculates the acceleration due to gravity on the Mars.
An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm
A hot-air balloon is travelling upwards with a constant speed of 12 m/s. An object fell from the balloon when it was at the height of 1000 m
Calculate the mass of Earth from the period of the moon, T = 27.3 d; its mean orbital radius, rm = 3.84 108 m; and the known value of G
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
Estimate the gravitational force between the Sun and Venus. The mass of the Sun is 1.99×10^30 kg. The mass of Venus is 48.7×10^23 kg. The distance between them is 10.8×10^10 m.
A flower pot on a balcony railing falls to the ground 8.63m below. A cat directly beneath the pot sees it begin to fall. How long does cat have to move.
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