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Your friend observes an artificial satellite orbiting the earth. He estimates it is at an altitude h= 528 km above the earths surface and has a mass m =3500 kg. He wishes to show it off to his other friends. He asks you to help him calculate when the satellite will be back in the same position. From the second law of motion and the gravitational force law calculate the following:
a) What is the satellites velocity?
b) what is the period of the satellites motion?
Two long thin parallel wires 13.0 cm apart carry28-A currents in the same direction. Determine the magnetic field vector
Two soccer players start from rest, 30 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
The average output power of a cellular phone, which can be treated as a point of E-M waves, is 1.0W when it is "ON". Estimate the intensity of the phone's E-M waves in your brain
A curve in a highway has radius of curvature 110 m and is banked at 3.3°. On a day when the road is icy, what is the safest speed to go around the curve
Two infinite, straight lines of charges run parallel to each other at a distance of 10cm. Find the electric force an electron would experience if placed at the middle point between the lines
a 70.1 kg student is riding a looping roller coaster. at the top of the loop the student is moving with a speed of 17.5
A particle has an acceleration of 6.19 m/s^2 for 0.350 s . At the end of this time the particle's velocity is 9.26 m/s What was the particle's initial velocity?
A frictionless simple pendulum on Earth has a period of 1.75 s. On Planet X its period is 2.14 s. What is the acceleration due to gravity on Planet X
Coherent light with wavelength 603 passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 from the slits.
Two square metal plates are placed parallel to each other, separated by a distance d= 2.04 cm. The plates have sides of length L = 0.580 m. One of the plates has charge Q= + 1.86×10-6 C, while the other plate has charge -Q. Calculate the magnitude..
A block on a 30 degree incline has an initial velocity of 3.5 m/s up the incline. How long until it returns to where it started from
For a procedure, the enthalpy change and the entropy change of the system is 173000 J and its entropy change is 210 J/K. compute the free energy change of the system at 298 K.
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