Answer:
Yes
Explanation:
The momentum of an object is given by:
where
m is the mass of the object
v is the velocity of the object
We know that an elephant has a mass much larger than the mass of an ant. However, we see that the momentum of the animal also depends on its velocity.
If the elephant is at rest, its velocity is zero:
v = 0
so its momentum is also zero:
p = 0
And therefore, an ant which is moving (so, non-zero speed) can have more momentum than an elephant, if the elephant is at rest.
Answer: A car slows from 22 m/s to 3.0 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is a r2.1 m/s2 traveling at 3.0 m/s?
5 pages
Explanation:
Answer:
Change in energy Δu = 40 J
Explanation:
Given:
System heat ΔQ = 150 J
Missing value of Lost heat ΔW = 110 J
Find:
Change in energy Δu
Computation:
Change in energy Δu = System heat ΔQ - Missing value of Lost heat ΔW
Change in energy Δu = 150 - 110
Change in energy Δu = 40 J
They both are formed in strong thunderstorms.
Both hail and tornadoes are forms of severe weather that originate from thunderstorms, most often an especially powerful class of thunderstorms called supercells.
It is fairly common for hail to accompany tornadoes.
If any thunderstorm produces hail at least 1 inch in diameter, winds of 58 mph or greater, or a tornado it is classified as severe.
