A car travels at an average speed of 79.2 km/h for 1.00 h and then at an average speed of 43.2 km/h during a second hour. what is the car's average speed during the 2.00 h interval?

Explain the Electric magnetic system

A 100gm copper block is heated in boiling water for 10min and then it is dropped into 150gm of water at 30 C in a 200gm calorimeter. if the temperature of water is raised to 33.6 C. determine the specific heat of material of calorimeter?

Mary takes 6.0 seconds to run up a flight of stairs thaf is 102 meters long. if mary wieght is 87 newtons, what power has mary exerted

What is the PE of an object with a mass of 10 kg, and 2 meters up

An object of mass 10 kg is accelerated upward at 2 m/s squared. what force is required?

how much current is in a circuit that includes a 9-volt battery and a bulb with a resistance of 3 ohms?

Which must be present in order to call study scientific

Why is dose equvialent in rem or sv used to define the Effective Dose Equivalent and the Committed Dose Equivalent?

What is the density of an unknown metal that has a mass of 158 g and a volume of 20 ml

An electron is located on the x axis at x0 = - 9.31*10-6 m. Find the magnitude and direction of the electric field at x = 9.39 * 10-6 m on the x axis due to this electron.