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3 years ago

What is the closed system equation?

Physics

1 answer:

morpeh [17]3 years ago

3 0

The change of internal energy resulting from the transfer of heat or work.

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a net force of 100 newton’s is a moving mass with an acceleration of 5 m/s. what is the mass of the object?

Jlenok [28]

F = ma

100 N= m . 5 ms⁻¹

100 / 5 = m

20 N ms = mass of object.

7 0

3 years ago

Jane does 5 joules of work when she closes her bedroom window. She applies a force of 6 newtons to do the job. How far does she

insens350 [35]

Statement:

Jane does 5 joules of work when she closes her bedroom window. She applies a force of 6 newtons to do the job.

To find out:

The displacement of the window when she pulled it.

Solution:

Work done (W) = 5 J
Force (F) = 6 N
Let the displacement of the window be s.
We know, the formula of work done, i.e., W = Fs
Putting the values in the above formula, we get
5 J = 6 N × s
or, s = (5 ÷ 6) m
or, s = 0.83 m

Answer:

She pulls the window by 0.83 m.

Hope you could understand.

If you have any query, feel free to ask.

4 0

3 years ago

For resistors in series, the equivalent resistance is _____ of their values.

Stels [109]

Answer: The correct answer is "the same as the sum".

Explanation:

The expression for the equivalent resistance in the series combination of the circuit is as follows;

$R'=R_{1} +R_{2} +R_{3}$

Here, R' is the equivalent resistance, $R_{1},R_{2},R_{3}$ are the resistances.

The expression for the equivalent resistance in the parallel combination of the circuit is as follows;

$\frac{1}{R'} =\frac{1}{R_{1}} +\frac{1}{R_{2}}+\frac{1}{R_{3}}$

Here, R' is the equivalent resistance, $R_{1},R_{2},R_{3}$ are the resistances.

In the series combination of the circuit, the equivalent resistance is more than the equivalent resistance in the parallel combination of the circuit.

In the series combination of the circuit, the same amount of current flows across the resistance but the voltage is different across the resistances.

Therefore, for resistor in series, the equivalent resistance is the same as the sum.

8 0

3 years ago

A body starts from rest and travels 120cm in the 8th second.Find the acceleration

dlinn [17]

Answer:

Hey mate hope its help you....

4 0

3 years ago

Read 2 more answers

How do you calculate concrete weight per cubic yard?

Vinvika [58]

Total weight = Volume × density

5) calculate weight of concrete slab by multiplying volume and their density in similar unit as Weight = Volume× density, density= 150lb/ cf, so total weight = 33 cf × 150 lb/cf = 4950 pounds or 2.475 short tons.

6 0

3 years ago