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Natali5045456 [20]
3 years ago
15

Which unit abbreviation is a measurement for force

Physics
1 answer:
Mnenie [13.5K]3 years ago
5 0
Force is measured in Newtons, with the symbol N.
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ke =  \frac{1}{2} m{v}^{2}  \\  =  \frac{1}{2} (600)( {40}^{2} ) \\  = 300 \times 800 = 240000 = 240kjoule

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Six light bulbs are connected in series with a 9.0­ volt battery. What is the voltage across each bulb?
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Voltage adds in a series and the amount of voltage dropped due to each resistor in a circuit (the light bulbs are resistors) depends on the resistance of each.

Assuming equal resistance of each light bulb, the voltage dropped on each is equal and should add up to 9V (Kirchoff's Rules).

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Energy has dissipated into heat
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Two long wires are oriented so that they are perpendicular to each other, and at their closest they are 20.0 cm apart. What is t
mrs_skeptik [129]

Answer:

523.2 x 10^-7 T

Explanation:

distance between the two wires, D = 20 cm

d = D/2 = 10 cm = 0.1 m

Current in first wire, i1 = 25.6 A

Current in second wire, i2 = 5.4 A

The magnetic field due to a straight current carrying conductor is given by

B=\frac{\mu _{0}}{4\pi }\frac{2i}{r}

Magnetic field due to the first wire

B_{1}=10^{-7}\times \frac{2\times 25.6}{0.1}

B_{1}=512\times 10^{-7} T

Magnetic field due to the second wire

B_{2}=10^{-7}\times \frac{2\times 5.4}{0.1}

B_{2}=108\times 10^{-7} T

The two magnetic field are perpendicular to each other

The resultant magnetic field is given by

B=\sqrt{B_{1}^{2}+B_{2}^{2}}

B=\sqrt{512^{2}+108^{2}}\times 10^{-7}

B = 523.2 x 10^-7 T

5 0
4 years ago
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