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Vlad [161]
4 years ago
11

Please answer!!! I’m desperate

Physics
1 answer:
rodikova [14]4 years ago
8 0

a is the answer hope this helps

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Which of the following keys moves the insertion point to the beginning of data in a cell? (Points : 2)
Korvikt [17]
Insert moves the insertion point to the beginning of data in a cell so the answer is INSERT :)))
i hope this be helpful
6 0
3 years ago
Which of the following is prohibited by the 2nd law of thermodynamics?
vitfil [10]

(A) A device that converts heat into work with 100% efficiency

It clearly violates the second law of thermodynamics because it warns that while all work can be turned into heat, not all heat can be turned into work. Therefore, despite the innumerable efforts, the efficiencies of the bodies have only been able to reach 60% at present.

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3 years ago
Why can work be thought of as the transfer of energy? Please help it's physics
deff fn [24]
That is because work requires energy. According to the law of conservation of energy, it cannot be created or destroyed. When doing work, energy change forms and gets transferred to the object until it is released.
for example, when you lift up an object and place it on a higher elevation, you transferred energy to it and gave it potential energy. The potential energy is transformed into kinetic energy when the object falls down, and if it hits a surface, the energy will scatter, vibrating the areas around it and producing sound.
Also, work= force X distance. The energy does not go away, but rather get changed into some other form of energy
7 0
3 years ago
Read 2 more answers
you push your little sister on a swing and in 1.6 minutes you make 52 pushes what is the frequency of your swing? answer in unit
ehidna [41]
<span> If you make 46 pushes then your sister swings through 46 cycles and she does so in 90 seconds. The frequency would be 46/90 = 0.511 Hz.</span>
6 0
3 years ago
A stretched spring has 5184 J of elastic potential energy and a spring constant of 16,200 N/m. What is the displacement of the s
Ira Lisetskai [31]
The elastic potential energy (Ep) is given by Ep =  \frac{1}{2}*k*x^2

Data:
Ep = 5184 J
k = 16200 N/m
x (displacement) = ?

Solving:
Ep = \frac{1}{2}*k*x^2
5184 = \frac{1}{2}*16200*x^2
5184*2 = 16200x^2
10368 = 16200x^2
16200x^2 = 10368
x^2 =  \frac{10638}{16200}
x^2 = 0.64
x =  \sqrt{0.64}
\boxed{\boxed{x = 0.8\:m}}\end{array}}\qquad\quad\checkmark

8 0
4 years ago
Read 2 more answers
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