What is the difference between speed and velocity ?
A) velocity describes speed with direction.
B) there is no difference.
C)Velocity describes direction with position.
D)Velocity is used in space, while speed is used on earth.

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

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

You can decrease the resistance of a length of wire by