A household fan draws 0.520 amps of current when the voltage is 120 V. How large is the resistance on the fan

= 230.8 ohms

Explanation:

From ohms law, V = IR

R = V/I

R = 120 ÷ 0.520

R = 230.8 ohms

13 m/s^2

Explanation:

The acceleration of gravity near the surface of a planet is:

g = MG / R^2

For planet 1, g = 26 m/s^2.

The gravity on planet 2 in terms of the mass and radius of planet 1 is:

g = (2M)G / (2R^2)

g = 1/2 MG / R^2

Since MG/R^2 = 26 m/s^2, then:

g = 13 m/s^2