a yoyo in someones hand is an example of potential energy
Answer:
1) Weight on Mercury
Explanation:
do the same to the rest and use your calculator to find the weight in N.
First you see the difference in mass numbers 238-234 = 4
Its is an alpha particle as it decreases the mass no by 4 .
Answer:18 grams
Explanation:
The mass of an object doesn't change,it is the same everywhere irrespective of it location,therefore if the mass of an object in earth is 18 grams, the mass of the object in the moon will also be 18 grams
