According to the general theory of relativity, how fast to gravitational waves move through space?
A) the speed of light
B) the speed of gravity, which is slower than light
C) the speed of gravity, which is faster than light
D) Gravitational waves can be felt instantaneously over any distance of space.
E) the speed of sound
A) the speed of light
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If a cord has negligible mass, the force exerted at one end is transmitted undiminished to each adjacent piece of cord along the entire length to the other end
Indicate whether the statement is true or false
When the voltage across a resistor is decreased by 50%, what happens to the power dissipated?
A. it increases by 50% B. it decreases by 50% C. it decreases by 25% D. it decreases by 71% E. it decreases by 75%
Stars of spectra type K have strong Balmer lines
Indicate whether the statement is true or false
The two moons of Mars are captured _______________
Fill in the blank(s) with correct word