A potential difference of 12 V is found to produces a current of 0.40 A in 3.2 m length of wire of radius 0.40 cm. What is the total resistance and resistivity of the wire

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Often called simply "velocity," this is the velocity of an object at a particular moment in time.