Agolf club (mass 0.5kg) hits a golf ball (mass 0.03kg) with a constant force of 25n over a time of 0.02 seconds. what is the magnitude of the impulse delivered to the ball? select one: o a. 0.05 ns b. 1250 ns c.1.67 x102 ns d.12.5ns o e.8.00 x 104 ns

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Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in

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.