Ian has a mass of 58.0Kg. What is his weight?

A Van de Graaff generator is charged so that the electric field at its surface is 88000 N/C. What is the magnitude of the electric force on a proton released at the surface of the generator? The mass of a proton is 1.

A current of 4.50 a flows through a resistor that has r = 6.20 ω. what is the voltage across the resistor, that is, the potential difference between the two ends of the resistor?

A 500 kg empty elevator moves with a downwards acceleration of 2 m/s2. What is the tension force of the cable on the elevator? 5000 N 4000 N 6000 N 1000 N

In which medium does sound travel faster

The average distance between the surface of the earth and the surface of the sun is 1.49 * 1011 m. how much time, in minutes, does it take for light leaving the surface of the sun to reach the earth?

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How does gravity affect projectile motion?

A 68kg man is carrying a box with a mass of 7 kg what is the weight of the man and the box together

What does Newton's third law say about why momentum is conserved in collisions? 1. Equal forces act for unequal times, so the change in momentum for both objects must be equal. 2.

A notebook sitting on a desk has 19 j of potential energy. What is the total mechanical energy of the notebook?