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AleksandrR [38]
3 years ago
12

How do you raise the frequency of a guitar string?

Physics
1 answer:
marusya05 [52]3 years ago
3 0
You pull the string harder
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A projectile is launched into the air with an initial speed of 40 m/s and a launch angle of 20° above the horizontal. The projec
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Explanation:

V=40m/s

Vy=V.sina=40.sin20=40 . 0.342=13.68m/s

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2 years ago
(a) what is the system of interest if the acceleration of the child in the wagon is to be calculated? (select all that apply.)
Leno4ka [110]

since child is moving along with the wagon and we need to find the acceleration of child inside that wagon then in this case the system of interest must be child + wagon

System of interest will be the system that is used to find the force or acceleration using Newton's law

Here we have to assume that system on which if we will calculate the forces then the net value of force on that system will help to calculate the unknown quantities

So here our system will be boy + wagon

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3 years ago
Which action best demonstrates the transformation of mechanical energy to heat energy and sound energy?
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3 years ago
How do we use energy transformation in our daily lives?
olga55 [171]

Answer:hat are some examples of energy transformation?

The Sun transforms nuclear energy into heat and light energy.

Our bodies convert chemical energy in our food into mechanical energy for us to move.

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