Answer:
B
Volume decreases due to less molecular motion of the gas inside the football.
Explanation:
Assuming that the atmospheric pressure (and therefore, the pressure of the air inside the football) remains constant, this means that we can apply Charle's law, which states that:
"For a fixed amount of gas kept at constant pressure, the volume of the gas is proportional to its absolute temperature"
Mathematically:
where
V is the volume of the gas
T is its absolute temperature
In the winter month, the air becomes colder, which means that the temperature of the air (and of the gas inside the football) decreases. As the average kinetic energy of the molecules of a gas is proportional to its absolute temperature, this also means that there will be less molecular motion in the gas, and therefore (as stated by Charle's law) the volume of the gas also decreases.
2.5N
Explanation:
Given parameters:
Mass of object = 500g
Acceleration = 5m/s²
unknown:
Resultant force = ?
Solution:
According to Newton's second law "the net force on a body or the resultant force is the product of its mass and acceleration".
Resultant or net force = m x a
where m is the mass
a is the acceleration
Now we need to convert the mass to kg
1000g = 1kg
500g = 
= 0.5kg
Therefore;
Input the parameters:
Force = 0.5 x 5 = 2.5N
learn more:
Newton's law brainly.com/question/11411375
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The answer to the question above is 50 FEET. This is also the same distance as the boat. This should be the distance that a PWC stay away from a stationary platform or shoreline or another boat when operating at greater than headway speed. PWC stands for personal water craft such as a <span>water scooter.</span>
Answer:
an electro magnet is technology contain at least one permanent magnet
Answer:
By suspending the needles on in the air, the needle which orients itself in the north-south direction is magnetized
Explanation:
- The only method to check a magnet individually without the help of another magnet or magnetic substance on the earth is by suspending it in the air which orients itself in the direction of the magnetic field of the earth.
- This is when the non-magnetic needle will not align itself as the magnetic needle does in the magnetic field of the earth.
