Explain step by step 1) How much force was
used in order to push an object 4 meters if the work done is 22Nm

2) A person uses a force of 7N is used to pull a box for 8 seconds with a speed of 1.5 m/a. Calculate the magnitude of work done by the person

3) A 2kg object is pushed from a speed of 3m/a to 7/ms. How much work was done on the object?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

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.