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Question: Suppose that we could use the energy released when 3 g of antimatter annihilates 3 g of matter to lift a mass 2 km from the Earth's surface. How much mass could we lift?
At the distance of the earth from the sun, the pressureexerted by sunlight is about 10-5 Pa. what acceleration does this force give it
A 68-kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.11. What would be the magnitude of acceleration.
Oasis B is located 25 km east from oasis A. A camel starts from oasis A and travels 19.6 km in the direction 14.7 degrees south of east. Then it walks 8 km directly to the north. How far is the camel from oasis B?
There are four coils of wire being used as electromagnets. They all have the equal size and are made up of the same material but have a different number of loops.
The first stage of a space vehicle consumed fuel and oxidizerat the rate of 1.70 104kg/s, with an exhaust speed of 2.85103 m/s. Calculate the thrust produced by these engines
An instructor wants to use a lens to project a real image of a light bulb onto a screen 2.20 m from the bulb. In order to get the image to be three times as large as the bulb, what focal length lens will be needed?
area ratio. i know that at a temperature of 3000k the power was 4.59 x106 wm2 and at 6000k the power was 7.35 x107 wm2
an electric transformer is in a cylinderical tank 60cm in diameter and 1 meter high, with a flat top and bottom. how many degrees will the tanks surface rise above room temperature
In order to calculate th number of ways of arranging a given amount of energy in a tiny block of copper, How many atoms are in the copper block
As a spaceship flies past with speed , you observe that 1.0000 s elapses on the ship's clock in the same time that 1.0000 min elapses on Earth. How fast is the ship traveling, relative to the Earth
A heat engine operates in a Carnot cycle between72.0°C and345°C. It absorbs21,600J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat
The four tires on the author's car are inflated to an absolute pressure of 2.7x10^5 Pa. obtain the contact area between each tire and the ground
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