Answer:
Explanation:
Using the Law of Conservation of Momentum, we can set up the following equation:
, where 
is Bruce's momentum and 
.
Plugging in given values, we get:
.
use Newton's gravitational law and 2nd law .....
Answer:
It is an instrument which increases the amount of force available to a single hypothetical person.
Examples;
Levers, pulleys are force magnifiers.
Answer:
That's hilarious!! :') (Or "That eez 'ilarious!")
Explanation:
Fleur Delacour
Answer:
Is the mass number
Explanation:
Every atom is usually identified by using two different numbers:
- Atomic number: generally labelled with Z, corresponds to the number of protons in the nucleus, so Z = p
- Mass number: generally labelled with A, corresponds to the number of protons+neutrons in the nucleus, so A = p + n
To find the number of neutrons in a nucleus, therefore, we can do
n = A - Z
