Mechanical energy is conserved in the presence of which of the following types of forces? Select all that apply. A - electrostaticB - frictionalC - magneticD - gravitational

What will the speed of a sound wave change if the Temperature of the medium rises

Where do seawater and freshwater meet?

The force of gravity between two objects is directly proportional to which of the following? a. the volume of each object. b. the masses of each object. c. the velocity of each object. d. the distance between the objects squared.

Which of the following actions will decrease the gravitational force between two objects? A. Increasing the mass of the objects B. Increasing the density of the objects C. Increasing the distance between the objects D.

Determine the energy stored in a parallel plate capacitor that is charged to a potential difference of 150 V. The plates are 4.50 mm apart and have an area of 87.5 cm2. Assume the space between the plates is filled with air.

A stunt car with a mass of 1000 kg crashes into a tree on a movie set during the collision acceleration of the car with 3 m what was the force of impact of the collision on the car

A circuit with a current of 400 amp has several lights that have a total resistance equal to 30 ohms. Find the voltage.

How many neutrons does element x have if it's atomic number is 35 and it's mass number 71

The potential difference between the terminal of an electrical heater is 60v when it draw a current 4A fron the source. What current will the heater draw if the potential difference is increased to 120v?

Which answer choice best explains why nuclear reactions release more energy than chemical reactions? Electrostatic forces of repulsion are thousands of times stronger than gravitational forces.