The escape velocity needed for an atom in the atmosphere of a planet to escape thegravitational pull of the planet is smaller if:

a) the radius of the planet is smaller
b) the planet is farther from the Sun
c) the mass of the atom is larger
d) the temperature of the gas in the atmosphere is lower
e) the mass of the planet is smaller


Ans: e) the mass of the planet is smaller

Physics & Space Science

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Based on the idea of "spaceship Earth," write one or two paragraphs explaining why it is not the case that we are "just sitting here."

What will be an ideal response?

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Objects A and B are at the same temperature. Object A now has its temperature increased by one Fahrenheit degree, while B has its temperature increased by one Kelvin degree. Which object now has higher temperature?

A. Object A B. Object B C. Both have the same temperature D. It is impossible to tell from this data

Physics & Space Science

Capacitors connected in series always have ________ total capacitance than any of the individual capacities

A) more B) less C) the same D) Not enough information given.

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The general formula R-X is that of

a. an amine. b. an alkyl halide. c. an alcohol. d. none of these

Physics & Space Science