The mass of a galaxy can be estimated using Newton's modification of Kepler's Third law.

Answer the following statement true (T) or false (F)


True

Physics & Space Science

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A baseball is hit almost straight up into the air with a speed of about 20 m s.

(a) How high does it go? (b) How long is it in the air?

Physics & Space Science

The single most important determinant of the temperature, density, radius, luminosity, and pace of evolution of a protostar is its:

A) chemical composition. B) magnetic field. C) spin. D) mass. E) molecular composition.

Physics & Space Science

Assume when using a meter stick measuring can be done so that the last significant figure is in the tenth of a millimeter digit. If you are measuring an object with length between 6 and 7 cm, how many significant figures will result if you only use the part of the meter stick between the 1-cm and 9-cm positions?

a. 2 b. 3 c. 4 d. 5 e. more than 5

Physics & Space Science

Distinguish between pressure and density. How are they related to each other?

What will be an ideal response?

Physics & Space Science