Acar is held motionless off the ground by a hovering helicopter. if the car's mass is 1500kg, what is the force on the car due to gravity? a. 153 n b. 1470 n c. 1500 n d. 14,700 n

Asystematic approach to problem solving is called a (an)

What is the coefficient of kinetic friction μk between the block and the tabletop?

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.