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A weather satellite encircles the earth at an orbital speed of 6200 m/s.
A) How high above the earth's durface does it orbit?
B) What is the g value at this orbital distance?
C) What is its orbital period?
Identical objects are located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
An emf is induced in a conducting loop of wire 1.46m long as its shape is changed from square to circular. Find the average magnitude of the induced emf
skier who, starting from rest, reaches a speed of 5.04 m/s when going down a slope for 4.21 s, How far does the skier travel in this time
A parallel plate capacitor of capacitance 7.2 µF has the space between the plates filled with a slab of glass with ? = 3.5. Find the capacitance after the glass is removed
In fair weather, over flat ground, there may be a downward electric field of 155 N/C. Calculate the charge density of the air
A 73 long metal string under 35.5 tension has a linear mass density 2.20×10?4, Find the frequencies of the first three harmonics
A human hair is placed directly in front of the opening of a laser pointer. The light has a wavelength of 647.8 nm. Determine the approximate thickness of the hair
A cannon tilted up at a 30° angle fires a cannon ball at 65 m/s, What is the ball's impact speed on the ground below
The blue ball moves at an angle of -35° and a velocity of 2.1 meters/second. What is the final y-momentum of the system?
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward, What is the total time the blue car is moving, What is the acceleration of the yellow car
if a river flows due east at 1.68m/s. a boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 13.40m/s due north relative to the water. if the river is 178m wide, how far downstream is the boat when i..
the cross sectional areas of the pistons in the system have a ratio of 25 to 1. If the maximum force that can be applied to the small piston is 12 N, what is the maximum weight that can be lifted?
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