The solution to this is to use the n = c / v equation
Where:
c is the speed of light: 3x10^8; and
The idea that v = m/s
So plug in the m/s for v in the n = c v equation and you will
get:
1.5 = (3 x 10 ^ 8)/ ((4.5m)/s))
Therefore, the time should be 2.25 x 10 ^ -10 seconds.
C the presence of harmful substances in food
Answer:
1. High pressure: Happens when air cools and it becomes denser...
2. Low pressure: Happens when warm air rises...
3. Cold front: Cold air mass is replacing a warm air mass...
4. Warm front: Warm air mass is replacing a cold air mass...
5. Sun: Is necessary for evaporation to take place.
6. Nimbus clouds: Dark clouds that have rain or snow falling.
7. Cumulus clouds: Fluffy, dense clouds most composed of droplets.
8. Atmosphere: The layer of gases that surround the Earth.
9. Nitrogen: Makes up 78% of Earth's atmosphere.
10. Troposphere: Lowest layer of Earth's atmosphere. Where we live. Where we find most weather.
-Hope this helps.
Answer:
the salt is dissolved, resulting in a homogeneous solution.Explanation:
Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.
