What is the net force on a car if the force of friction is 15 N and the forward force due to the engine is 20 N?

A. 5 N backwards

B. 5 N forwards

C. 35 N backwards

D. 35 N forwards

In a car engine, gasoline is burned to create mechanical energy. Which of the following statements is true? Some energy is lost as heat. The total amount of energy in the system increases. The total amount of energy in the system decreases.

Solve for y 11=y/3+7

Which compounds are used in batteries? Check all that apply. sulfuric acid lithium hydroxide potassium hydroxide nitric acid ammonium hydroxide

A cylindrical capacitor is made of two thin-walled concentric cylinders. The inner cylinder has radius 8 mm, and the outer one a radius 11 mm. The common length of the cylinders is 152 m.

Sound waves move through some liquid at a speed of 1500 m/s. If the wavelength is 3 m, what is the frequency of the wave?

Imagine two starts are exactly the same size, but one of the stars to greater mass than the other. which star will burn out all of its fuel first

How many eclipses normally occur each year? a. 2 b. 5 c. 7 d. 4

At what distance from equilibrium is the energy of a sho half kinetic and half potential?

Why can you not measure the volume of water in the measuring cylinder accurately unless you look straight at the scale?

How can biologic weathering result in chemical weathering? A. Bacteria release acids and other agents that break down rock B. Large herds temple rocks and break up soil C. Root loosen soil and break rock