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ira [324]
3 years ago
14

Compare and contrast the solar eclipse seen in this video to a lunar eclipse.

Physics
1 answer:
Crank3 years ago
8 0

Answer: sadly, I can’t see the video. However, a lunar eclipse happens when the moon is hidden by the earth’s shadow. A solar eclipse occurs when the moon casts a shadow on the earth.

Explanation: I’m not completely sure if this is what you were looking for, but I hope it helps anyway.

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A wave has a frequency of 450 Hz and a wave length of 00.52 m what is the speed of the wave?
nata0808 [166]
Wave speed is always (frequency) x (wavelength)

                       Speed  =  (450 /sec) x (0.52 m)

                                     =      234 m/sec .
4 0
3 years ago
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What outside force slows down a parachute?
WINSTONCH [101]
Air resistance force 
8 0
4 years ago
A thin flexible gold chain of uniform linear density has a mass of 17.1 g. It hangs between two 30.0 cm long vertical sticks (ve
Elanso [62]

The magnitude of the force on the left-hand pole of the thin flexible gold chain of uniform linear density with a mass of 17.1 and, hangs between two 30.0 cm long vertical sticks, which are a distance of 30.0 cm apart will be, 0.167N.

To find the correct answer, we have to know more about the Basic forces that acts upon a body.

<h3>What is force and which are the basic forces that acts upon a body?</h3>
  • A push or a pull which changes or tends to change the state or rest, or motion of a body is called Force.
  • Force is a polar vector as it has a point of application.
  • Positive force represents repulsion and the negative force represented attraction.
  • There are 3 main forces acting on a body, such as, weight mg, normal reaction N, and the Tension or pulling force.
<h3>How to solve the problem?</h3>
  • We have given that, the gold chain hangs between the vertical sticks of 30cm and the horizontal distance between then is 30cm.
  • From the given data, we can find the angle  (in the free body diagram, it is given as θ).

                                    tan\alpha =\frac{30}{30}\\ \alpha =45^0

  • From the free body diagram given, we can write the balanced equations of total force along y direction as,

                                 y-direction\\T_2sin\alpha =mg\\\\T_2=\frac{mg}{sin\alpha } =\frac{17.1*10^{-3}*9.8}{sin45} \\\\T_2=0.236N

  • From the free body diagram given, we can write the balanced equations of total force along x direction as,

                                 x-direction\\T_1-T_2cos\alpha =0\\T_1=T_2cos\alpha \\T_1=0.236*cos45=0.167N

Thus, we can conclude that, the magnitude of force on the left-hand pole will be 0.167N.

Learn more about the Basic forces that acts upon a body here:

brainly.com/question/28106866

#SPJ1

6 0
2 years ago
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Why do you think modern America needs so much energy to function?
MariettaO [177]

Answer:

electricity consumption in United states was about 3.9 trillion kilolwatthours(kWh) in 2019 electricity is an essential part of morden life

3 0
3 years ago
¿Cuál es la energía potencial de un objeto que tiene una masa de 12kg y se encuentra en un anaquel a una altura de 7m?
Novosadov [1.4K]
1) 84
2) 120
I’m not sure so if this is wrong I’m sorry
5 0
3 years ago
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