What is speed in a specific direction called

Can anybody me with this? ? (picture included.)

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors