Will knows that the gravitational pull of mars is less than the gravitational pull of earth. When he lands on mars, his mass wil
1 answer:
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Answer:
Explanation:
Given
Distance between two wires
Current value
(a)If current flows in opposite direction
When current Flows in opposite direction the two wires will repel each other
Force due to current carrying wire
(Repulsive Force)
(b)If current is flowing in the same direction
When direction of current is same then force will be attractive in nature
(attractive Force)
The concept of momentum tells us that it is equivalent to the product between the mass and the velocity of the object, that is to say that in general it can be written as
Where,
m = mass
v = Velocity
Our values are given as,
Replacing we have that,
Therefore the magniude of the momentum of the pitched baseball is
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.