a baseball is travelling (+30 m/s) and is hit by a bat. it leaves the ball travelling (-40 m/s) what is the change in velocity

Which of the following properties could be described as a force that pushes charges along? A) charge B) current C) voltage D) resistance

Why does lightning follow a jagged path

Your answer is incorrect. an empty swimming pool needs to be filled to the top. the pool is shaped like a cylinder with a diameter of 8 m and a depth of 1.6 m. suppose water is pumped into the pool at a rate of 11 m3 per hour.

Imagine you have a mixture that contains iron filings (small pieces of iron metal), sand, poppy seeds, and salt. You have the following materials: water, beaker, funnel, filter paper, magnet, graduated cylinder, tweezers, and hot plate.

A passennger on a bus moving with uniform velocity lurches forward when the bus stops suddenly. Explain.?

Why is it easier to read black text on a white background than to read green text of any light color?

If object A has more mass than object B, does object A contain more matter? Explain.

Describe a beach that was near stormy seas and powerful waves

We all depend on electricity. Most electricity is created by electromagnetic generators at large power plants and distributed through an electric grid.

A rock with mass m = 4.00 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 17.