Lunar Eclipse. Choose ALL that apply (Had to ask again) Question 1 options:

Earth casts its shadow on the moon

The moon turns dark

Light from the sun is blocked

Earth is directly between the moon and sun

Question 2 (0.5 points)
Solar Eclipse: Choose ALL that apply

Question 2 options:

The Earth is directly between the moon and sun

Earth casts a shadow on the moon

Moon moves between the sun and Earth

The moon blocks out the light of the sun and casts a shadow onto the Earth

c is the answer because when something is left after something evaporates that shows the chemical change.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

12 is it do you think so

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied