When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?

A gorilla is hanging motionless on a tree branch. If the gorilla's weight is 400 Newtons, what must be the tension in the tree branch?

Which type of force can be in the same it opposite direction? A) normal B) gravitational C) unbalanced D) balanced

Is it possible for an object's velocity to increase while its acceleration decreases? (A) No, because if acceleration is decreasing the object will be slowing down (B) No, because velocity and acceleration must always be in the same direction (C)

A body moving at. 500c with respect to an observer disintigratesinto two fragments that move in opposite directions relative to their center ofmass along the same line of motion as the original body. Onefragment has a velocity of.

An uncharged spherical conducting shell surrounds a charge - q at the center of the shell. Then charge + 3q is placed on the outside of the shell.

Acceleration is a scalar quantity true or false

Find a numerical value for rhoearth, the average density of the earth in kilograms per cubic meter. Use 6378km for the radius of the earth, G=6.67*10-11m3 / (kg⋅s2), and a value of g at the surface of 9.80m/s2.

The driver of a car traveling at 32 m/s applies the brakes and undergoes a constant deceleration of 2.25 m/s^2.

The ability of an object to vibrate by absorbing energy at its natural frequency is called?

A hurricane in the Gulf of Mexico to 15 hours to travel 360 kilometers. What is the average speed of this hurricane in kilometers per hour?