What are real life examples of work not being done

A steel tank is to be positioned in an excavation. determine the requiredmagnitude of force p if the resultant of the two forces applied at a is to be vertical. what is the magnitude of the resultant force?

A box took five minutes to move. You did 3,150J of work in the process. How much power was required to move the box?

Why is it important to know the velocity of an object, not just its speed? Speed is only useful for fast-moving objects. Velocity also tells you direction of motion. Speed is always an average. Velocity tells you the average speed.

A person stands on top of a tall building holding two rocks at a height of 50 meters. At the same moment, one rock is dropped from rest while the other is thrown downwards with an initial velocity of 8.0 m/s.

Does an electromagnetic waves speed affected by the changes in media?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him

What is the displacement and distance if I walk 8 blocks north, 9 blocks west and 10 blocks south