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In order to gets a flat uniform cylindrical satellite spinning at the correct rate, engineer’s fire four tangential rockets as shown in the picture. If the satellite has a mass of 2000kg and a radius 3.0m what is the needed steady force of each rocket if the satellite is to reach 30rpm in 5.0min?
a magnetic field is oriented at an angle of 31deg to the normal of a rectangular area 5.5 cm by 7.2 cm. if the magnetic
A bolt comes loose from underneath an elevator that is movingupward at a speed of 4.1 m/s. The boltreaches the bottom of the elevator shaft in 3.6 s. How high up was the elevator when the boltcame loose?
An object has a total energy of 5.0 x 10^15 J and a kinetic energy of 2.0 x 10^15 J. What is the magnitude of the object's relativistic momentum
Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. Find the number of molecules of pain reliever
In gaseous sodium chloride, chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated by 0.240 nm.
a mine car mass 474 kg rolls at a speed of 0.368 ms on a horizontal track as the drawing shows. a 103-kg chunk of coal
A sealed tank containing seawater to the height of 11.10 m also contains air above the water at a gauge pressure of 3.20 atm. Water flows out from the bottom throughout a small hole.
questiona convex lens is a transparent device that uses refraction to twist and focus light from an object forming a
An object is placed 19 cm to the left of a converging lens of focal length 25 cm, Find the position and magnification of the final image
Point particle a with mass ma is moving in the positive x direction and collides with stationary point particle b with mass mb. Prove that it is not possible for a to “stick” to b so that both particles move together as a single object after the coll..
an 19.0-kg box is released on a 38.0 incline and accelerates down the incline at 0.280ms2 find the friction force
Cyclotrons are sometimes used for carbon-dating by accelerating singly ionized C14 and C12 ions from a sample of material. find the difference in cyclotron frequencies for the two ions
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