What is the work done by gravity when a 2.0kg ball falls to the floor from the height of 1.50m? is it positive or negative? explain

Avoltage source vs = 10 v is in series with a resistor of 10 kohm. if the source transformation theorem is applied, what will the value of the current source be in ma ?

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader