An electric car is designed to run off a bank of 12-V batteries with total energy storage of 3.0 ´ 107 J. If the electric motor draws 6 000 W in moving the car at a steady speed of 10 m/s, how far will the car
go before it is “out of juice?”
a. 25 km
b. 50 km
c. 100 km
d. 150 km

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?