A bimetallic strip is formed from two materials that have different

a. coefficients of linear expansion
b. heat capacities
c. calories
d. phase transitions
e. relative humidities


A

Physics & Space Science

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Time Dilation: At age 21, you set out for a star that is 50 light-years from Earth. How fast would your spaceship have to travel in order to reach that star when you are 61 years old? One light-year is the distance light travels in one year.

A. 0.58c B. 0.68c C. 0.78c D. 0.88c E. 0.96c

Physics & Space Science

If a 10-V battery, with negligible internal resistance, and a 15-? resistor are connected in series, what is the amount of electrical energy transformed to heat per coulomb of charge that flows through the circuit?

a. 0.67 J b. 1.5 J c. 10 J d. 150 J e. 25 J

Physics & Space Science

The value 1.38 × 10^?23 J/K is known as:

a. the universal gas constant. b. Boltzmann's constant. c. Avogadro's number. d. the molar specific.

Physics & Space Science

Mass is a measure of

a. inertia. b. force. c. grams. d. weight. e. kilograms.

Physics & Space Science