The hottest star in the Orion Nebula ____________hydrogen gas and makes it _____________

a. ionizes; glow
b. neutralizse; glow
c. ionizes; swallow the star


a

Physics & Space Science

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A pitcher claims he can throw a baseball with as much momentum as a 3.00-g bullet moving with a speed of 1500 m/s. A baseball has a mass of 0.145 kg. What must be its speed if the pitcher's claim is valid?

What will be an ideal response?

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What are the rings of Saturn made of?

A. helium droplets B. chunks composed of water, ice, and carbon compounds C. small fragments of dust D. a huge sheet of ice

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When sulfur-35 (Z = 16) decays to chlorine-35 (Z = 17), a(n) __________ is emitted

Fill in the blank(s) with correct word

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Beta rays can penetrate

A) air only. B) a piece of paper. C) several millimeters of aluminum. D) several centimeters of lead. E) several meters of iron.

Physics & Space Science