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Tcecarenko [31]
3 years ago
13

An astronomer would most likely use parallax to

Physics
1 answer:
12345 [234]3 years ago
4 0
The correct answer is<span> measure the distance to a star. 

It is</span> the semi-angle of inclination between two sight-lines to the star, as observed when the Earth is on opposite sides of the Sun in its orbit. This is used to measure the distance to closer stars.
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A 10-µf capacitor is plugged into a 110 v-rms 60-hz voltage source. what is the rms value of the current through the capacitor?
ValentinkaMS [17]

The rms value of current is0.414A, and the maximum value of current is 0.585A.

To find the answer, we have to study about the capacitive reactance.

<h3>How to find the rms and maximum value of current?</h3>
  • We have the expression for rms value of current as,

                 I_{rms}=\frac{V_{rms}}{X_c}

where; Xc is the capacitive reactance of the circuit.

  • We have the capacitive reactance as,

                 X_c=\frac{1}{2\pi fC} =\frac{1}{2\pi *60*10*10^{-6}} =265.39 Ohm

  • Thus, the value of rms current will be,

                 I_{rms}=\frac{110}{265.39} =0.414A

  • Thus, the maximum value of current will be,

                I_0=\sqrt{2}*I_{rms} =0.585A

Thus, we can conclude that, the rms value of current is0.414A, and the maximum value of current is 0.585A.

Learn more about the capacitive reactance here:

brainly.com/question/27853857

#SPJ4

7 0
2 years ago
A race car is moving with a velocity of 144 kilometers/hour. The driver applies the brakes, and the car comes to a halt in 12.0
Lady_Fox [76]
The problem gives us the value for the initial velocity of the race car, and the time it takes for the race car to come to a complete stop. The question however, proves to be tricky. The question states as follow: "what is the acceleration of the car after 12.0 seconds?" Since it was already established that the car has come to a halt in 12.0 seconds, therefore, the acceleration would have to be 0, as the car would not be moving at all.
4 0
4 years ago
I need help on a homework question.
Mama L [17]

Answer:

green

Explanation:

the the board is going to be green

7 0
3 years ago
Read 2 more answers
Shortly after receiving a traffic ticket for speeding, Fred made numerous comments about the road signs being inadequate and is
k0ka [10]

Answer:

External locus of control

Explanation:

External locus of control is an attitude people possess that makes them attribute their failures or successes to factors other than themselves. The opposite of this type of attitude is the Internal locus of control where the individuals take responsibility for the outcomes of their actions whether good or bad. One good thing about the external locus of control is that when the individuals with this characteristic record successes, they attribute it to others and this presents them as people with team spirit. However, when they record failures, they do not want to take the blame, but rather attribute it to others.

Fred exhibits an external locus of control because he attributed his speeding to other factors like the road signs and GPS instead of fully admitting that it was his fault.

7 0
4 years ago
You drop a 6.0x10^-2 kg ball from height of 1.0m above hard flat surface. Ball strikes surface and energy decreases by 0.14J, th
harina [27]
If you drop a <span>6.0x10^-2 kg ball from height of 1.0m above hard flat surface, and a</span>fter the ball had bounce off the flat surface, the kinetic energy of the ball would be mgh - 0.14 = 0.45. 
3 0
3 years ago
Read 2 more answers
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