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3 years ago

In the virtual lab, calculations were made of the predicted diffraction angle, using the formula

Physics

1 answer:

djyliett [7]3 years ago

6 0

Answer:

1. The predicted angle of diffraction with a 3 cm wavelength was degrees.

the answer is 57.3

2. The predicted angle of diffraction with a 4 cm wavelength was degrees.

the answer is 76.4

3. The predicted angle of diffraction with a 5 cm wavelength was degrees.

the answer is 95.5

Explanation:

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A 80 ohms resistor, 0.2 H inductance and 0.1 mF capacitor are connected in series across a generator (60 Hz, V rms=120 V). Deter

qaws [65]

Answer:

Impedance = 93.75 ohms

Current = 1.81 A

Explanation:

Resistance = R = 80 ohms

Inductance = L = 0.2 H

Inductive reactance = XL = $X_{L}=$ = ωL = (2πf) L

= 2 (3.14) (60)(0.2) = 75.398 Ohms

Capacitive reactance = 1 / ωC = 1/(2πf)C = 1 / [(2π)(60)(0.1 × 10⁻3)]

= 26.526 Ohms

Impedance = Z = $\sqrt{R^{2} + (X_{L} - X_{C})^{^{2}}} =$

= $\sqrt{8788.511}$ = 93.747 ohms

Voltage = $\sqrt{2}$ × 120 = 169.7056 V

Current = I = V ÷ R = (169.7056) ÷ 93,747 = 1.81 A

8 0

3 years ago

Find the hiker’s gravitational potential energy if the cliff is 60m high

Furkat [3]

Answer:

Potential energy is $U=mgh$

Explanation:

The potential energy depends on the mass, the acceleration of gravity g and the height at which the object or person is.

Potential energy $U=mgh$

In this case we would need to know the exact mass of the hiker in order to calculate the potential energy.

But we know the values of g and h

$g=9.81m/s^2$

$h=60m$

So, the potential energy

$U=m(9.81m/s^2)(60m)\\\\U=588.6*m$

m is the mass of the hiker, wich is not in the description of the problem.

4 0

2 years ago

For the sun, which is the final step in core fusion?

Marina86 [1]

The answer would be stage of<span> conversion of Hydrogen to Helium.
At the end of this phase, the helium content of the suns will have the popping effect where more and more helium is now on the core resulting to higher temp and density as helium converted from hydrogen is much heavier.</span>

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2 years ago

I just need help with these seven!

Anna [14]

21. light changes its direction when travelling through a new medium because denser mediums have a higher angle of refraction.

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3 years ago

So, why can a properly executed karate kick break a concrete block without fracturing bones [16]? first, bone is a very strong m

Sav [38]

PM me for full answer, please. If it's not too late.

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2 years ago