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iren2701 [21]
3 years ago
10

How much heat is absorbed by a 43g iron skillet when its temperature rises from 8oC to 28oC?

Physics
1 answer:
julia-pushkina [17]3 years ago
8 0
Using the specific heat of 0.45 kJ/g • oC, you multiply .45 and 43. This gets you 19.35 kJ or
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Is the mass of an object measured with scale, yes or no​
mamaluj [8]

Answer:

No.

Explanation:

The scale actually measures the force that the object does against it, and that force is called the weight.

Such that if we have an object with mass M and we are on Earth, where the gravitational acceleration is g, the weight is:

W = M*g

Now, there is a unit called "kilogram-force"

Such that on Earth, an object that has a mass of 10 kilograms, weighs 10 kilograms-force.

Then from the weight measure, we can instantly know the mass of the object, but the thing that is being measured is the weight, not the mass.

7 0
3 years ago
A capacitor acquires a charge of 0.003 C when connected across a 30-V battery. Its capacitance is _____.
USPshnik [31]
Charge stored in a capacitor given by Q = C*V.

So, C = Q / V.

V=30V,  Q=0.003C

C = 0.0001F  or 100μF
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4 years ago
A person travelled 350 m east from his home and returns back home an hour has displacement of_?​
Svetradugi [14.3K]

Answer:

vector of zero magnitude

Explanation:

The displacement is a vector magnitude, therefore, in addition to being a module, it has direction and sense.

In this case it moved 350 m and then returned the same 350 m, so the total displacement is zero.

If we draw the vector, one has a directional direction to the right and the other direction to the left, therefore when adding the two vectors gives a vector of zero magnitude

7 0
3 years ago
the process of making alloys involves _____ pure metals to remove impurities. Then the pure metals are ____ with other component
Law Incorporation [45]
I think this is the answer for the first line(Cooling ,Heating or mixing ) and for the second line is(broken down,cooled,mixed)
5 0
3 years ago
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A stationary rock on a hill has
Mekhanik [1.2K]

Answer: potential energy but no kinetic energy

Explanation:

Since the rock is stationary, velocity is zero, therefore no kinetic energy,but there's potential energy because the rock is at rest,

5 0
3 years ago
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