What prevents satellites orbiting the earth from falling?
Answer: Nothing. They are falling AROUND the Earth
You might also like to view...
A solid sphere of mass 2.50 kg and radius 0.120 m is at rest at the top of a ramp inclined 15.0°. It rolls to the bottom without slipping. The upper end of the ramp is 1.20 m higher than the lower end. Find the sphere's total kinetic energy when it reaches the bottom
a. 70.0 J b. 47.9 J c. 29.4 J d. 8.80 J
A galaxy is observed receding from Earth with a speed of 2800 km/s
If the Hubble constant is 22 km/s per million light-years, estimate how many years ago the light that we presently see from the galaxy actually left the galaxy. (c = 3.00 × 108 m/s, 1 ly = 9.461 × 1015 m, 1 y = 3.156 × 107 s) A) 1.4 × 107 y B) 4.2 × 107 y C) 4.2 × 108 y D) 4.2 × 106 y E) 1.3 × 108 y
Avogadro's number has a numerical value of
a. 6.02 × 10^23. b. 1.00 × 10^23. c. 3.01 × 10^23. d. none of these.
It takes ________ years for the sun to progress through one sunspot cycle, wherein sunspots appear at high latitudes, shift to lower and lower latitude, then return to high latitudes. Refer to the graph above
A) about 10 years B) about 110 years C) about 1 year D) This figure cannot be used to answer this question.