a 1.2 m wire carries a current of 10.0 A in a uniform magnetic field of 0.050T. Find the magnitude of the magnetic force on the wire.

Answers

Answer 1
Answer: Ok so you want to use the following formula which corresponds to the magnetic force on a wire F = (B)(I)(L) (where L is usually represented by a small l but it looks like I which corresponds to current).

Ok so we need to know what all the letters stand for F of course is the magnetic force. B is the magnetic field strength ( 0.050 T). I is the current (10 A) and L is the length (1.2) of the wire where the magnetic force has an affect. Slot this into your equation and you're done.

F = (0.050)(10)(1.2)
   = 0.6 N (Newtons
Hope this helps :).


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Nuclear power plants generate __________________.

Answers

it's generate Electricity 

The radius of the sphere is (4.3+-0.1)cm. the % error in the vol is???

Answers

The maximum error in its radius is (0.1) / (4.3) .

We know that volume is proportional to (radius)³, so the error in
volume is proportional to (error in radius)³ .

[ 1 + 0.1/4.3 ]³ = 1.0714

The max volume error is 7.14 % 

Compare the charges and masses of protons, neutrons and electrons.

Answers

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22. The mechanical efficiency of any machine is always ____________________ than 100 percent.23. When a pole vaulter flexes the pole, the pole vaulter increases the pole’s ____________________ potential energy.

24. Wind turbines convert ____________________ energy into electrical energy.

Answers

22. less
23. elastic
24. wind
hope it helps

Explanation :22  The mechanical efficiency of any machine is always less than 100 percent.

23. When a pole vaulter flexes the pole, the pole vaulter increases the pole’s elastic potential energy.

24.  Wind turbines convert wind energy into electrical energy.

What kind of relationship between the independent and dependent variable does this graph illustrate? A. inverse proportion
B. linear
C. quadratic
D. direct proportion

Answers

Answer:

C. quadratic

Explanation:

Linear graphs are straight lines, and direct proportion graphs are lines that pass through the origin.

Inverse proportion graphs have vertical and horizontal asymptotes passing through the origin.

Quadratic graphs are parabolas.

The graph shown is a parabola, or quadratic.

two truckers are traveling directly away from each other at the same speed. If one trucker sounds her horn at a frequency of 206 Hz, and the other trucker hears a frequency of 189 Hz, determine the speed of the trucks. Use the speed of sound as 343 m/s. m/s

Answers

Answer:

v' = 14.76 m/s

Explanation:

given,

frequency of the one truck = 206 Hz

apparent frequency ,f' = 189 Hz

speed of sound, v = 343 m/s

speed of observer (v_o)and source (v_s) = v'

now, using Doppler's effect

f' = (v-v_o)/(v+v_s)\ f

f' = (v- v')/(v+v')\ f

189 = (343- v')/(343+v')\ 206

0.9174= (343- v')/(343+v')

314.69 + 0.9174 v' = 343 - v'

1.9174 v' = 28.30

v' = 14.76 m/s

hence, the speed of the truck is equal to 14.76 m/s