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BARSIC [14]
3 years ago
7

What are the si units

Physics
1 answer:
forsale [732]3 years ago
6 0

Answer:

The uniy which is accepted all over the world is called SI unit.

Explanation:

The system of measurement that is agreed by the international convention if scientists that is held in paris of France to adopt an international unit is called SI unit unit.

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A submarine sends a signal and receives an echo after 5 seconds. Calculate the speed of sound if distance of object from submari
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speed = distance \div time
Since the sound travels from the submarine to the object AND back, it actually travelled 3625x2=7250m.

7250 \div 5 = 1450
Speed of sound: 1450m/s
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3 years ago
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2 years ago
a body dropped from a height reaches a velocity of 13m/s just before touching the ground. What is the initial height of the ball
SashulF [63]

Hi there!

We can use the following (derived) equation to solve for the final velocity given height:

vf = √2gh

We can rearrange to solve for height:

vf² = 2gh

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We can calculate time using the equation:

vf = vi + at, where:

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a = acceleration (in this instance, due to gravity)

Plug in values:

13 = at

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2 years ago
Every summer I drive to Pennsylvania. It is 895 km to get there. If I average 100 km/hr, how much time will I spend driving?
Ivan

Answer the time you bee spending driving iss 795 because 895-795=100

Explanation:

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1 year ago
Atoms of the same element that have the same number of protons but different numbers of neutrons are called_____
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