The first law of thermodynamics is basically a special version of the law of ______________

Fill in the blank(s) with correct word


conservation of energy

Physics & Space Science

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Which of the SI prefixes is used to indicate

A. kilo B. mega C. giga D. tera E. nano

Physics & Space Science

An ice cube in a glass of water is pushed to the bottom of the glass and held there with a straw. Consequently, the buoyant force on the ice cube is now

A. the same as when the cube was floating at the top. B. exactly balanced by the force exerted only by the straw. C. exactly balanced by the weight of the ice cube. D. greater than when the cube was floating at the top.

Physics & Space Science

Suppose we imagine the Sun to be about the size of a grapefruit. Which of the following best describes the size and distance of Earth on the same scale?

A) Earth is the size of a tip of a ballpoint pen about 1 meter from the Sun. B) Earth is the size of a golf ball about 1 meter from the Sun. C) Earth is the size of a tip of a ballpoint pen about 15 meters from the Sun. D) Earth is the size of a golf ball about 15 meters from the Sun. E) Earth is the size of a marble about 25 miles from the Sun.

Physics & Space Science

What would the concentration of OH- be if the concentration of H3O+ was 1 × 10-5M?

[H3O+] × [OH-] = Kw = 1 × 10-14 A) 1 × 10-14 B) 1 × 10-5 C) 1 × 109 D) 1 × 105 E) 1 × 10-9

Physics & Space Science