Answer
given,
I = 0.140 kg ·m²
decrease from 3.00 to 0.800 kg ·m²/s in 1.50 s.
a) 

τ = -1.467 N m
b) angle at which fly wheel will turn



θ = 20.35 rad
c) work done on the wheel
W = τ x θ
W = -1.467 x 20.35 rad
W = -29.86 J
d) average power of wheel


the answer is a: galaxies. galaxy clusters are groups of galaxies that like to hang out together out there in space. the milky way's own galaxy cluster is called the local group.
Answer: 2.72727272......g/cm3^
Explanation:
D = g/cm^3
soo d = 15/5.5
<span>both the speed of the wave and the wavelength
- The frequency does not change, but the speed does. If that is true, then the wavelength must also change.</span>
The momentum change of the system during the collision is always equals to one another.
<h3>Momentum change during collision</h3>
In a collision, the momentum change of first object is equal to and opposite of the momentum change of second object with which the first one collided. Or in other words, the momentum lost by first object is equal to the momentum gained by second object.
The total momentum of the system means the collection of two objects is conserved so we can conclude that the momentum change of the system during the collision is always equals and opposite to one another.
Learn more about collisions here: brainly.com/question/7538238