Claudius Ptolemy discovered that the orbit of Mars is an ellipse

Indicate whether the statement is true or false


False

Physics & Space Science

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Light travels at speed c. Complete the following equation using only words: wave speed = _____________ × ________________

Fill in the blank(s) with correct word

Physics & Space Science

If a main sequence, giant, and a supergiant all have the same spectral class, what characteristic is known to make these stars different?

A. surface temperature B. color C. luminosity D. distance E. It shows that the more massive stars are cooler.

Physics & Space Science

A car of mass m1 traveling at velocity v passes a car of mass m2 parked at the side of the road. The momentum of the system of two cars is

A.

0.

B.
m1v.

C.
(m1?m2)v.

D.

E.
(m1 + m2)v.

Physics & Space Science

The attraction of the Moon causes tides on Earth. Because of friction, tidal action slows the rotation of Earth. What happens to the angular momentum of the Earth-Moon system, and does this affect the motion of the moon?

What will be an ideal response?

Physics & Space Science