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SSSSS [86.1K]
3 years ago
14

You have a 10 volt parallel circuit, with 2 resistors on it. What is the voltage across the first resistor? Across the second?

Physics
2 answers:
Cloud [144]3 years ago
7 0
If both resistors are equal, it is 5 V (if the wires have no resistance). If they are different, you can use a formula: U1 = U * R1/(R1+R2)
zheka24 [161]3 years ago
3 0
What is the value of the resistors?  There are many types of resistors with different values for how much resistance they provide

Edit: My bad.  Where are the resistors located
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A Plane has a takeoff speed of 150 m/s and requires 1500m to reach that speed. Determine the acceleration of the plane and the t
mars1129 [50]

<u>Answer:</u>

The acceleration of the plane and the time required to reach this speed is  (a)= 7.5 m/sec^2 and time(t) = 20 seconds  

<u>Explanation: </u>

Given data Initial velocity (V_i) = 0  

Final velocity (V_f) = 150 m/second

Distance (d) = 1500 m

We have the formula,  $\mathrm{V}_{\mathrm{f}}^{2}=\mathrm{V}_{\mathrm{i}}^{2}+2 \mathrm{ad}$

which gives 150^2 = 0+2a(1500)    

22500 = 3000 a  

acceleration (a) = 7.5 m/s^2

$\mathrm{V}_{\mathrm{f}}=\mathrm{V}_{\mathrm{i}}+\mathrm{at}$

150 = 7.5 t

t= 150/7.5 = 20

t = 20 seconds.  

5 0
2 years ago
A metal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpend
andrezito [222]

Answer:

Explanation:

We have a metal ring of diameter

d = 4.2cm = 0.042m

r = d/2 = 0.021m

And it is place between the north pole and south pole of a large magnet with the plane of it's area perpendicular to the magnetic field.

Given that the magnetic field is

B = 1.12 T

The rate of decrease of magnetic field is 0.2T/s, since it is decrease then,

dB/dt = -0.2 T/s

The induce electric field is given as,

From faradays law

ε = ∫E•dl = -dΦ/dt

Magnetic flux is given as

Φ = BA

Φ = πr²×B = πr²B

Also, ∫E•dl = E×2πr = 2πrE

So,

∫E•dl = -dΦ/dt

2πrE = -d(πr²B) / dt

r is a constant, then

2πrE = -πr² dB/dt

Divide both side by πr

2E = -r dB/dt

E = -r dB/dt / 2

E = -0.021 × -0.2 / 2

E = 0.0021 V/m

The magnetic field point from north to south pole and it is decreasing and this means that the magnetic flux is also decreasing, so the induce magnetic field must point in the same direction of the original magnetic field, so the induce current circulate counter-clockwise as viewed from the south pole

5 0
3 years ago
Which of the following is the water cycle process where the extra water that plants release is evaporated from their leaves?
ddd [48]
B evaporation since the water is going up
6 0
2 years ago
Explain whether a particle moving in a straight line with constant speed does or does not have an acceleration. b) Explain wheth
Lelechka [254]

Answer:

A: No because it is nor changing speed or direction

B: Yes because it changes direction even though the speed is constant

Please Give Brainliest

5 0
2 years ago
The car salesman tells you that the car can go from a stop position to 60 mph in six seconds is giving you the car’s rate of
slava [35]
The salesman is telling you the average magnitude of the car's acceleration.

| Acceleration | = (change in speed) / (time for the change)

| Acceleration | = (60 mi/hr) / (6 sec)

| Acceleration | =  10 miles/hr-sec

That would be 36,000 miles per hour squared,
or 0.0028 mile per second squared.
5 0
3 years ago
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