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Assume an asteroid is in the shape of a sphere and has a mass of 900 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.1 meters.
More info to know: 1 kg = 1000 grams, 1 m = 100 cm, volume of sphere = 4/3 tt r^3. Remember that a radius is half of its diameter.
Calculate the buoyancy force exerted by a liquid of density 933 kg/m^3 on a cube of a metal with density 1643 kg/m^3 and volume 18 cm^3. (gravity is 9.8m/s^2) (Give the result in Newton)
A wrecking ball swings at the end of an 11.0 meter cable on a vertical circular arc. Evaluate what speed vf does the ball have when the cable makes an angle of 17.0 degree with respect to the vertical
A 2.82 kilogram projectile is fired with an initial speed of 119 meter per second at an angle of 31 degree with the horizontal. Compute the energy released in the explosion
The middle-A organ pipe was designed to sound at exactly 440 Hz when the temperature is 20 C. How long is the organ pipe if it is open on both ends
The team monitoring a space probe exploring the outer solar system finds that radio transmissions from the probe take 2.38 hours to reach earth. How distant (in meters) is the probe?
A pail of water is rotated in a vertical circle of radius 1.00 m (the approximate length of a person arm). What must be the minimum speed of the pail
You are designing a hydraulic lift for an automobile garage. It will consist of two oil-filled cylindrical pipes of different diameters. What should be the diameter of the pipe under the platform
A fun-loving 10.1kg otter slides up a hill and then back down to the same place. how much mechanical energy did she lose on the hill
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
Consider a ball with initial velocity v0 that has magnitude 20.0 m/s and is directed 37.0 degrees above the positive x axis. (a) Find its velocity when its x is x=5.0m. (b) What's the maximum height of the ball.
Assume that while moving into an apartment you move a refrigerator into place by sliding it across the floor. The refrigerator weighs 1452 N and the coefficient of static friction among the floor and the refrigerator is 0.46. What is the least force ..
A tortoise can run with a speed of 9.0 cm/s, and a hare canrun 20 times as fast. in a race, how long does the race take
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