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GarryVolchara [31]
3 years ago
7

• Describe the importance of a commonly used measuring system. Be prepared to give two examples of why having a common system of

measurement is important.
1.
2.
Physics
1 answer:
IrinaVladis [17]3 years ago
3 0
Metric system. important because it saves us time due to the fact that we do not have to convert our units every time. 
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Which statement best describes what energy transfer diagrams show? Energy can change form, but the total amount of energy stays
Rom4ik [11]
Energy can change form, but the total amount of energy stays the same.
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2 years ago
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A key falls from a bridge that is 32 m above the water. It falls directly into a model boat, moving with constant velocity, that
FinnZ [79.3K]

Answer:

Speed of the boat, v = 4.31 m/s

Explanation:

Given that,

Height of the bridge, h = 32 m

The model boat is 11 m from the point of impact when the key was released, d = 11 m

Firstly, we will find the time needed for the boat to get in this position using second equation of motion as :

s=ut+\dfrac{1}{2}at^2

Here, u = 0 and a = g

t=\sqrt{\dfrac{2s}{g}}

t=\sqrt{\dfrac{2\times 32}{9.8}}

t = 2.55 seconds

Let v is the speed of the boat. It can be calculated as :

v=\dfrac{d}{t}

v=\dfrac{11\ m}{2.55\ s}

v = 4.31 m/s

So, the speed of the boat is 4.31 m/s. Hence, this is the required solution.

3 0
3 years ago
A 2.50 kg ball moving at 7.50 m/s is caught by a 70.0 kg man while the man is standing on ice. What is the common velocity of th
yarga [219]

Answer:

V = 2.5*7.0 / ( 2.5 + 70 )

8 0
2 years ago
How can you find the mass of a tissue box?
a_sh-v [17]

Explanation:

To find the volume of a box of Tissue (also known as a rectangular prism) just multiply the area of the base (length times width) by the height. The formula is V = l• w• h.

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2 years ago
What must happen to an atom of magnesium in order to become a magnesium ion
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I would assume that the magnesium would have to come into contact with an ion in order to become a magnesium ion. 
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