What could serve as ballast for a balloon?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.