Answer:
Germanium
Explanation:
Germanium is a chemical element that is grayish white metalliod
Chemical energy is the type of energy obtained from food. If you want more info look up information about the mitochondria and ATP. I hope this helps!
Well momentum is = to Mass*Velocity so let's use an example to figure this out
If I weighed 50kg and I was jogging at 3m/s then I broke into a run at 6m/s how will me momentum be affected?
3m/s*50kg=150
6m/s*50kg=300
So as you can see by doubling the velocity you also double the momentum
Answer:
D
Explanation:
Centripetal acceleration is the square of velocity divided by radius:
a = v² / r
Velocity is equal to angular velocity times radius, so this can also be written as:
a = ω² r
And angular velocity is 2π divided by the period, so:
a = (2π / T)² r
We can use these two equations to determine which scenario results in double the centripetal acceleration.
A) Keep the radius fixed and increase the period by a factor of two.
(2π / 2T)² r
1/4 (2π / T)² r
1/4 a
B) Keep the radius fixed and decrease the period by a factor of two.
(2π / ½T)² r
4 (2π / T)² r
4a
C) Keep the speed fixed and increase the radius by a factor of two.
v² / 2r
1/2 a
D) Keep the speed fixed and decrease the radius by a factor of two.
v² / ½r
2a
Only D doubles the centripetal acceleration.
