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svet-max [94.6K]
2 years ago
5

About when was the sail developed, making travel possible on the open water?

Physics
1 answer:
dalvyx [7]2 years ago
4 0
The first sail was developed in 1300 BC in Mesopotamia
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A car originally at rest reaches 40m/s after accelerating for 50s. Calculate its acceleration
satela [25.4K]

Explanation:

initial velocity=0

final velocity=40m/s

time=50s

acceleration=?

now,

a=v-u/t

a=40-0/50

a=40/50

a=0.8m/s^2

answer

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2 years ago
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AveGali [126]

Answer:

b, a

Explanation:

4 0
3 years ago
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for every 120 joules of energy input a car waste 85 joules, find the useful energy output of the car?
harina [27]

Answer:

Useful Output = 35 J

Explanation:

The useful energy output of the car must be equal to the difference between the total input energy supplied to the car and the energy wasted by the car:

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Total Input = 120 J

Waste = 85 J

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Useful Output = 120 J - 85 J

<u>Useful Output = 35 J</u>

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2 years ago
Explain the following statement: A concentrated acid is not necessarily a strong acid.
andrezito [222]
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3 0
3 years ago
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What is the formula to calculate the thickness of a test tube?​
Maslowich

Answer:

Having the inside dimensions (ID) and the outside dimensions (OD) will allow you to figure out the wall thickness on tubing. You would need to subtract the ID from the OD and then divide by two. This number is the wall thickness.

Explanation:

4 0
2 years ago
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