In Part A, you found that Planet Z should not have strong winds and violent storms. What single change to Planet Z's characteristics would cause it to have strong winds and violent storms?

a. a greater distance from its star
b. a faster rotation rate
c. a smaller size
d. a larger axis tilt


Answer : b. a faster rotation rate

Physics & Space Science

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A wire (length = 2.0 m, diameter = 1.0 mm) has a resistance of 0.45W. What is the resistivity of the material used to make the wire?

a. 5.6 × 10^-7 W × m b. 1.2 × 10^-7 W × m c. 1.8 × 10^-7 W × m d. 2.3 × 10^-7 W × m e. 7.1 × 10^-7 W × m

Physics & Space Science

Higher energy photons have

A) greater speed. B) longer wavelengths. C) higher frequency. D) All of the above. E) None of the above.

Physics & Space Science

An object moves 10 m east in 30 s and then returns to its starting point taking an additional 50 s. If west is chosen as the positive direction, what is the sign associated with the average velocity of the object?

a. + b. ? c. 0 (no sign) d. any of the above

Physics & Space Science

Hubble divided the spiral galaxies up in what six subtypes?

What will be an ideal response?

Physics & Space Science