Answer:

Explanation:
Using the conservation of energy we have:

Let's solve it for v:

So the speed at the lowest point is 
Now, using the conservation of momentum we have:

Therefore the speed of the block after the collision is 
I hope it helps you!
Answer:

Explanation:
The process during which pressure remains constant is called an isobaric process.
The gas that gives Neptune and Uranus its amazing blue color is methane
Answer:
I think the answer is b am sorry if it is wrong
Explanation:
Answer:
A,B,D,E,F
Explanation:
I took the test for yall.