A beta particle is another name for a helium nucleus

Indicate whether the statement is true or false


F

Physics & Space Science

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Typically, no more than a couple dozen potentially hazardous asteroids approach the Earth as close as 0.05 AU each decade

Indicate whether the statement is true or false

Physics & Space Science

Suppose you are in a spaceship accelerating away from Earth at 9.8 m/ s2 (1 g), so that you can walk on the floor of your spaceship as though experiencing normal gravity on Earth

Is it possible for you to consider yourself to be at rest? Why or why not? A) No, because you feel a force so you must truly be accelerating. B) No, because you are accelerating away from Earth, and it's not legitimate to claim that Earth is accelerating away from you. C) Yes, by assuming you are feeling effects of gravity and that Earth is accelerating away from you because it is in freefall. D) Yes, but only if believe that you are the center of the universe.

Physics & Space Science

Three resistors having resistances of 4.0 ?, 6.0 ?, and 10.0 ? are connected in parallel. If the combination is connected in series with an ideal 12-V battery and a 2.0-? resistor, what is the current through the 10.0-? resistor?

A) 0.59 A B) 2.7 A C) 6.4 A D) 11.2 A E) 16 A

Physics & Space Science

If the polarizing angle (the angle at which reflected light is completely plane polarized) of a flat piece of sapphire is 60.5°, what is its index of refraction?

a. 1.97 b. 1.77 c. 1.59 d. 2.36 e. 1.82

Physics & Space Science