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The moon has a period of 27.3 days and a mean distance of 3.90x10^5km from the center of earth. A)use keplers laws to find the periodof a satellite in orbit 6.70x10^3 km from the center of earth. B) how far above earth's surface is the satellite?
A uniform disk of radius 0.463 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A car rounds a 200 m radius curve at 10.5 m/s. If the horizontal force acting on the car is 790 N, what's the car's mass
"As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 s. Its mass is 0.145 kg. What is the baseball's acceleration in m/s2 and in g's
In a hot star, because of the high temperature, an atom can absorb sufficient energy to remove several electrons from the atom. Find the wavelengths of the next three spectral lines nearest to the line of longest wavelength
When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air, turning it into a conducting plasma that reflects the laser light.
A hubcap comes off a car that is traveling 100m/s . If it stops rolling after traveling 25 m, How many revolutions did it turn through before stopping
q1. charge a and charge b are 2.5 m apart. charge a is 1.4c and charge b is 2.5c. charge c which is 2.0 c is situated
What are the wavelength ranges for the following? (a) the AM radio band (540-1600 kHz) m (maximum wavelength) m (minimum wavelength) (b) the the FM radio band (88-108 MHz) m (maximum wavelength) m (minimum wavelength)
A street light is supported by two wires and each makes a different angle from each other. Find the tension in each wire if the street light has a mass of 60.0 kg
the potential energy of a +5x10-6C charge decrease from 0.17J when it is moved from point A to point B. What is the change in the electric potential between these two points
Big yellow fishing swimming at 2.0m/s swallows little green fish at rest. Big yellow fish is 3 times as massive as little green fish. What fraction of big yellow fish's initial kinetic energy was lost
An 8.70-kg block slides with an initial speed of 1.51 m/s up a ramp inclined at an angle of 27.4 degrees with the horizontal. calculate the distance the block slides before coming to rest.
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