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Arte-miy333 [17]
3 years ago
10

Compare endoplasmic reticulum to a house cell.​

Physics
1 answer:
Alenkasestr [34]3 years ago
5 0
The ER mainly folds proteins into sacs and transports proteins through the cell. The ER is a component of both plant and animal cells. The endoplasmic reticulum can be compared to the hallways of a house. Both are networks that allow the materials in the house/cell to be moved around.
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A kangaroo jumps straight up to a vertical height of 1.45 m. How long was it in the air before returning to Earth?
dexar [7]

Answer:

1.08 s

Explanation:

From the question given above, the following data were obtained:

Height (h) reached = 1.45 m

Time of flight (T) =?

Next, we shall determine the time taken for the kangaroo to return from the height of 1.45 m. This can be obtained as follow:

Height (h) = 1.45 m

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) =?

h = ½gt²

1.45 = ½ × 9.8 × t²

1.45 = 4.9 × t²

Divide both side by 4.9

t² = 1.45/4.9

Take the square root of both side

t = √(1.45/4.9)

t = 0.54 s

Note: the time taken to fall from the height(1.45m) is the same as the time taken for the kangaroo to get to the height(1.45 m).

Finally, we shall determine the total time spent by the kangaroo before returning to the earth. This can be obtained as follow:

Time (t) taken to reach the height = 0.54 s

Time of flight (T) =?

T = 2t

T = 2 × 0.54

T = 1.08 s

Therefore, it will take the kangaroo 1.08 s to return to the earth.

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3 years ago
Write at least 4 to 5 sentences on the different measurements that helped to calculate the speed of light. There are 3 specific
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The first experiment that was made to attempt to measure the speed of light involved detonating gunpowder by Isaac Beeckman. He declared that his experiment was inconclusive. Galileo also tried to measure the speed of light using two lanterns placed across each other. The next experiment involved planets where Ole Romer based his calculation on its movements. The final calculations were derived from different theories by different scientists including Maxwell until it ended up with the exact value for the speed of light. 
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Explanation:

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Answer:

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Explanation:

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Gravity is a force that helps to hold the universe together.true or false
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Yes, this is a true statement.



gravity is so important.
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