1. What is the kinetic energy of a vehicle that has a mass of 2000.0 kg that is driving at a constant speed of 40.0 m/s?
2. What is the kinetic energy of a vehicle with a constant speed of 35.0 m/s with a mass of 4500 kg?
3. What is the mass of an animal with a kinetic energy of 12,500 J and a constant speed of 15.0 m/s?

1.K=1.6•10⁶J

2 K=2.7•10⁶

3. m=0.1kg

Explanation:

1. m=2000 kg

speed=40 m/s

K=½mv²

K=½(2000•1600)J=1.6 10⁶ J

2. speed=35m/s

m=4500 kg

K=½(4500•1225)=2.7•10⁶

3. K=12,500J

speed=15 m/s

m=2K/v²

m= 25,000J/225m²/s²=0.1 kg

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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