Which portion of the electromagnetic spectrum is used in a microscope?
1 answer:
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Answer:
The number of calories needed is 6c.
Explanation:
The amount of energy needed to raise the temperature
of water of mass
is
where is the specific heat capacity of water.
Putting in numbers into equation (1), we get:
which is the number of calories needed.
Answer:
<em>The mass of the object is 40 Kg</em>
Explanation:
<u>Net Force</u>
According to the second Newton's law, the net force exerted by an external agent on an object is:
F = m.a
Where:
a = acceleration of the object.
m = mass of the object.
The mass can be calculated by solving for m:
The object has a net force of F=600 N acting on it and travels at , thus the mas is:
m = 40 Kg
The mass of the object is 40 Kg