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Anettt [7]
3 years ago
7

I will give u BRAINILIEST and 15 points

Physics
2 answers:
Aleks04 [339]3 years ago
4 0

It's a D. Interferometry I just took the test and I got it right

o-na [289]3 years ago
3 0
The answer is D interferometry
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A mass on a string is swung in a circle of radius 0.75m at 7.0m/s.what its rate of acceleration.​
Ulleksa [173]

Explanation:

ac = v^2/r

= (7.0 m/s)^2/(0.75 m)

= 65 m/s^2

3 0
3 years ago
A circular loop of wire having a radius of 5.58 cm carries a current of 0.230 A. A vector of unit length and parallel to the dip
Sidana [21]

Answer:

see explanation

Explanation:

Given quantities:

radius = r = 0.0558 [m]

current = I = 0.23 [A]

\vec{B} =

Now we solve this by obtaining the torque acting on the dipole

\tau = M \times B

We obtain the magnetic moment vector M, first, |M| is defined as M = IA, where A is the cross-section area of the loop which is A = \pi r^2=\pi (0.0558)^2= 0.00978 [m^2] then

|M| = 0.23*0.00978 = 0.00225 [A/m^2]

now the magnetic moment vector is equal to the magnetic dipole moment vector multiplied the magnitude we just obtained  \vec{M} = M \hat M

= 0.00225 *

Now:

a ) \tau = M \times B

b) U = -M \cdot B

a) the determinant gives us:

b) the dot product gives = -1*-7.2*10^{-6} = 7.2*10^{-6}[J]

6 0
3 years ago
1 question, brainliest for whoever gets it right.
Kaylis [27]

Answer:

im pretty sure the answer is c please mark me brainliest

6 0
3 years ago
A circuit has an AC voltage source in series with a 50 ohm resistor and a 113 mH inductor. The frequency is 100 cycles/sec, and
user100 [1]

Answer:

Explanation:

The rms voltage = 140/√2 = 140/1.414 = 99 V.

Reactance of inductor  = wL = 2 X 3.14 X 100 X 113 X 10⁻³ =70.96 ohm.

Total resistance in terms of vector = 50+70.96j

j is imaginary unit  number

Magnitude of this resistance = √ 50² + 70.96² = 86.80 ohm

current in resistance (rms) ( I ) = 99/86.80 = 1.14 A.

Power dissipated in resistor = I² R = 1.14 X 1.14 X 50 = 65 W( approx)

7 0
4 years ago
Please need some help on this thank you so much
fomenos
Weight is based on density mass is not.
8 0
4 years ago
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