Why did Thomson’s results from experimenting with cathode rays cause a big change in scientific thought about atoms? 1)His results gave people a picture of what atoms look like for the first time.
2)His results gave the first clues that atoms could be created and destroyed.
3)His results gave the first experimental evidence that matter is made up of atoms.
4)His results gave the first evidence that atoms were made up of smaller particles.

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.