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Ivanshal [37]
4 years ago
9

Why are chemical changes considered "unseen"

Physics
1 answer:
morpeh [17]4 years ago
4 0
Because they occur at an atomic level, changing the actual structure of the thing.
Hope it helps
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The value of velocity ratio is greater than the value of mechanical advantage why​
marishachu [46]

Answer:

The mechanical advantage of a machine is always less than its velocity ratio.It is because mechanical advantage decreases due to the friction and weight of moving parts of the machine, but the velocity ratio remains constant.

8 0
3 years ago
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A ball is thrown vertically upwards from the edge of a rooftop of a tall building. It passed a point 50 m below the rooftop afte
Fynjy0 [20]

Answer:

1

Explanation:

4 0
3 years ago
Can anyone explain and get the answer pls?
Veronika [31]

FL₁ =Fl₂

80.x₁ = 30.7

x₁=2.625 m

6 0
3 years ago
If you have 4 kg of a sample with density of 1 897 g/ml what is the volume
Kaylis [27]
We know, Volume = Mass / Density
Here, mass = 4 Kg = 4000 g
d = 1,897 g/ml

Substitute their values, 
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v = 2.108 ml

In short, Your Answer would be 2.108 mL

Hope this helps!
3 0
3 years ago
What type of relationship is shown in the graph
fenix001 [56]

Answer:

A linear, positive relationship

Explanation:

The graph is a line, so it is linear and the slope is positive, so it is positive...

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