If the Sun ceased to generate nuclear fusion in its core, the Sun would immediately begin to collapse inward

a. True
b. False
Indicate whether the statement is true or false


True

Physics & Space Science

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If you stand on a weighing scale and suddenly the atmosphere vanishes, taking buoyancy into account, the scale reading

A) increases. B) decreases. C) remains the same. D) quickly reduces to zero.

Physics & Space Science

In the heliocentric (Sun-centered) model, apparent retrograde motion is due to

A) relative motion between the Earth and another planet in its orbit B) the Earth reversing the direction of its orbit about the Sun C) a planet moving in a small circle, the center of which moves in a larger circle about the Earth D) a planet reversing the direction of its orbit about the Sun

Physics & Space Science

A hypothetical planet has a mass of one-half that of the earth and a radius of twice that of the earth. What is the free-fall acceleration on the planet in terms of g, the free-fall acceleration at the surface of the earth?

A) g B) g/2 C) g/4 D) g/8 E) g/16

Physics & Space Science

Light consisting of a mixture of red and blue light enters a 40°, 70°, 70° prism along a line parallel to the side opposite the 40° vertex. The index of refraction of the prism material for blue light is 1.530, and for red light it is 1.525

What is the angle between the two emerging beams of light? A) 0.5° B) 0.9° C) 0.1° D) 0.3° E) 0.7°

Physics & Space Science