A child has a temperature of 104°F. What is the temperature in degrees kelvin?
a. 40
b. 406
c. 401
d. 313
e. 349
d
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If a newly discovered planet has four times the mass of Earth, but it still has the same surface gravity as Earth, how big must this new planet be?
A. half the size of Earth B. the same size as Earth C. twice as large as Earth D. four times as large as Earth E. one fourth of the size of Earth
Suppose a 0.30-kg mass on a spring that has been compressed 0.20 m has elastic potential energy of 1.0 J. How much further must the spring be compressed to triple the elastic potential energy?
a. 0.35 m c. 0.10 m b. 0.15 m d. 0.05 m
Compared to the size of the Sun, in what range of sizes are nearly all stars found?
A) .5 to 2 solar radii B) 0.1 to 1.0 solar radii C) 0.5 to 50 solar radii D) 1 to 100 solar radii E) 0.01 to 100 solar radii
A woman drives 75 m to the east. She stops, asks directions, and then drives 75 m to north. What is the direction of the displacement with respect to east?
a. 30 b. 53 c. 0 d. 45