Planets found in the habitable zone of other stars

A) are all rocky planets, like the terrestrial planets in our solar system.
B) are all jovian planets.
C) include some Earths and super-Earths.
D) include hot Jupiters.
E) have been demonstrated to be barren of all life.


C

Physics & Space Science

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A uniform electric field has a magnitude of 10 N/C and is directed upward. A charge brought into the field experiences a force of 2.0 N upward. The charge must be

A. +20 C. B. -2.0 C. C. -20 C. D. -0.2 C. E. +0.2 C.

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When scattering 3.28 Angstrom X-rays off a crystal an interference maximum occurs at a scattering angle of 23.0 degrees. At what angle does the second maximum occur?

A. 51.3o B. 46.0o C. 34.5o D. there is no second maximum.

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A bolt of lightning strikes the ground 200 m from a 100-turn coil oriented vertically and with the plane of the coil pointing toward the lightning strike. The radius of the coil is 0.800 m and the current in the lightning bolt falls from 6.02 × 106 A to zero in 10.5 ?s. What is the voltage induced in the coil over this time period? [A question for future electrical engineers: is there any way

to get lightning to strike repeatedly at the same point?]
?

Physics & Space Science

If an object accelerates, a force is acting on it

1.True 2.False

Physics & Space Science