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Komok [63]
3 years ago
15

The lowest note on a piano

Physics
1 answer:
Vadim26 [7]3 years ago
7 0

Answer:

My teacher said 36m when I asked her

Explanation:

HOPE THIS HELPS!!

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An electric toaster has a power rating of 1100 W at 110 V. What is the resistance of the heating coil?
Semmy [17]

 R = 11 ohms

Explanation:

Given parameters:

Power of the electric toaster = 1100W

Voltage = 110V

Unknown:

Resistance, R of the heating coli = ?

Solution:

Electric power is given as:

     Electric power = IV

where:

  I is the current

  V is the voltage

       According to Ohm's law, V = IR

 where R is the resistance. If we make current the subject of the formula and substitute, it gives:

                  Power = \frac{[tex]V^{2}}{R}[/tex]

  Power =  \frac{[tex]110^{2}}{R}[/tex]

     R = \frac{Power }{[tex]110^{2}}[/tex] =  \frac{1100 }{[tex]110^{2}}[/tex]

   R = 11 ohms

learn more:

Power supply brainly.com/question/4322575

#learnwithBrainly

3 0
3 years ago
You push a friend sitting on a swing she has a mass of 50 kg and accelerates a rate of 4 m/s2 find the force you exerted
mylen [45]
Force exerted: 100

To find force you multiply the mass by acceleration. The formula is
F = Ma, and the SI unit for force is newtons.
5 0
3 years ago
"explain why the orbital radius and the speed of a satellite in circular orbit are not independent"
Oxana [17]
In order to achieve stable circular gravitational and centrifugal force must be in balance.
\frac{mv^2}{r}=G\frac{mM}{r^2} \\ v^2=G\frac{M}{r}\\ v=\sqrt{G\frac{M}{r}
This relationship tells closer the closser your orbit is to the surface of the planet the faster you have to go. Which makes sense because the closer you are to the planet the stronger gravitational force gets.

5 0
4 years ago
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