A satellite is placed in a geosynchronous orbit. In this equatorial orbit with a period of 24 hours, the satellite hovers over one point on the equator. Which statement is true for a satellite in such an orbit?
a. There is no gravitational force on the satellite.
b. There is no acceleration toward the center of the Earth.
c. The satellite is in a state of free fall toward the Earth.
d. There is a tangential force that helps the satellite keep up with the rotation of the Earth.
e. The force toward the center of the Earth is balanced by a force away from the center of the Earth.
c
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Stars support their weight by generating ____
a. magnetic fields throughout the star b. magnetic fields throughout the star c. energy in their centers d. magnetic-plasmas at their core e. energy-plasmas at their core
A car is traveling north at 17.7 m/s After 12 s its velocity is 141m/s in the same direction. Find the magnitude and direction of the car's average acceleration
A) 0.30 m/s2, south B) 0.30 m/s2, north C) 2.7 m/s2, north D) 2.7 m/s2, south
A policeman walks on his beat back and forth. His average speed is determined from
A. time divided by how far he ends up from the starting point. B. his velocity divided by the time. C. time divided by his total distance covered. D. his total distance covered divided by the time.
In the electron cloud model, or quantum model, of the atom, the focus is on the ______________ nature of the electron
Fill in the blank(s) with correct word