To solve this we assume
that the gas inside the balloon is an ideal gas. Then, we can use the ideal gas
equation which is expressed as PV = nRT. At a constant pressure and number of
moles of the gas the ratio T/V is equal to some constant. At another set of
condition of temperature, the constant is still the same. Calculations are as
follows:
T1 / V1 = T2 / V2
V2 = T2 x V1 / T1
V2 = 2 x 20.0/ 1
<span>V2 = 40 L </span>
Answer: Dropping a temporary magnet on the floor may destroy its magnetism because <u>the domains are knocked out of alignment</u>
Explanation:
An object behaves as a magnet when all the domains are aligned in a single direction. A temporary magnet is created when domains are temporarily aligned in the presence of another magnetic field. When this magnet is dropped on the floor, the domains dis-align causing the demagnetization of the magnet.
Answer:
The potential energy is zero since the rock isn't moving.
B. Teens are still growing and require more energy for building bones and muscle.
Answer:
A
Explanation:
the answer would be basicly A
