lighting and thunder accour at the same time yet we see the flash of lightning before we hear the clap of thunder what does this indicate about the speed of light compared with the speed of sound​

Answers

Answer 1
Answer:

Answer:

it shows that the speed of light moves faster in open space and speed of sound doesn't move as fast as the speed of light

Explanation:


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What is the formula of iron(III) oxide?

Answers

Answer:

Fe2O3

hope this helps

What is the main cause of erosion

Answers

Erosion is mainly caused by water, wind, and gravity.

Erosion is caused by human activities like excessive construction, agriculture, surface mining and forestry. Removing the vegetative cover accelerates erosion, which is often caused by grazing, logging or cultivating. In some cases, it can be removed by pests like pigs, rabbits and goats.

which organelle in the plant cell would mainly help the cell tack in water or get rid of water just like the potato did? this is also known as "osmosis" how do you know that this organelle would help with that process?

Answers


cell membrane;cellular respiration

A spring stores 3500 j of energy when it is stretched 1.5 meters. What is the spring constant of this spring? A) 4667 N/m B) 778 N/m C) 3938 N/m D) 3111 N/m

Answers

As we know that spring potential energy is given by the formula

U = (1)/(2)kx^2

now it is given to us that

U = 3500 J

x = 1.5 m

now we will plug in data in above equation

3500 = (1)/(2) k(1.5)^2

k = (2 * 3500)/(1.5^2)

now we will have

k = 3111 N/m

If you weighted 130 lbs on Earth how much would you weigh on the moon?3500
21
350
130

Answers

Answer:

21

Explanation:

Weight on the moon is 16.5 % of weight on earth

Weight on moon = 0.165 * 130

Weight on moon = 21 lbs

F has _valence electrons.
02
OOO
9
19

Answers

As far as I know it's 7