The electric field that is 0.25m from a small sphere is 450n/c toward the sphere.

a. Is the charge positive or negative? Why?

b. What is the magnitude of the charge on the sphere?

A moving object is in equilibrium. Which best describes the motion of the object if no forces change?

What does newton's first law predict will happen to a person riding in a car that is moving in circular motion?

100j of heat energy are transferred to 80 g of mercury. By how much does the temperature increase?

At a distance of one centimeter from an electron, the electric field strength has a value e. at what distance is the electric field strength equal to e/2?

All electromagnetic waves travel at the same speed in a vacuum true or false

The personal cost per smoker per year is estimated to be $2,500.

A tight rope walker traverses a wire with the aid of a balancing pole. The moment of inertia of the person about their COG (Iperson) is 15 kg m^2. The moment of inertia of the pole about its COG (Ipole) is 250 kg m^2.

If ta battery on a circuit is a 9-volt battery, each light on the circuit gets what

When a positive charge moves in the direction of the electric field, what happens to the electrical potential energy associated with the charge? A. It increases. B. It decreases. C. It remains the same. D. It sharply increases, and then decreases.

Electrons flow in the wire from a (n) terminal to a (n) terminal