11. By definition, the difference between a planet and dwarf planet is
a. Dwarf planets are much smaller than regular planets
b. Dwarf planets are not spherical
C. Dwarf planets do have enough mass to clear the neighborhood of their orbit
d. Dwarf planets are found only in the Kuiper Belt and Oort Cloud

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.