Answer:
1. 1568 J
2. 0 J
3. 1176 J
Explanation:
PE = mgh
(PE = Potential Energy) = (m = mass)(g = gravitational force which is 9.8)(h = height)
1. (3)(9.8)(20) = 1568 J
2. PE = (3)(9.8)(0) = 0 J
3. (5)(9.8)(24) = 1176 J
The answer is C
wood isn't a conductor but metal is
Answer:
RbOH
Explanation:
For this question, we have to remember what is the definition of a base. A base is a compound that has the <u>ability to produce hydroxyl ions</u> , so:
With this in mind we can write the <u>reaction for each substance:</u>
The only compound that fits with the definition is , so this is our <u>base</u>.
I hope it helps!
Answer:
Reaction type: Single displacement
Reactant: Magnesium
Product: Dihydrogen - H2