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dsp73
3 years ago
11

Which best describes the model? The field exerts an attractive force only outside of the ring of arrows that point toward Earth'

s surface. The field exerts an attractive force only within the ring of arrows that point toward Earth's surface. The strength of the field increases as you get farther from Earth, as shown by the larger spaces between the circles. The strength of the field increases as you get closer to Earth, as shown by the smaller spaces between the circles.
Physics
2 answers:
dangina [55]3 years ago
6 0

Answer: The strength of the field increases as you get closer to Earth, as shown by the smaller spaces between the circles.

Explanation: The strength of the magnetic field would decreases with distance from the earth. Normally, magnetic field is being proportional to the inverse square of the distance, which is the case with electric field from a point charge.

But the magnetic field is inversely proportional to the distance from the earth.

MissTica3 years ago
3 0

Answer:

D.

Explanation:

just took the test ed2020 :)

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Answer:

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3 0
3 years ago
A rock climber wears a 8.1 kg backpack while scaling a cliff. After 28.2 min, the climber is 9.4 m above the starting point. How
mart [117]

Answer:

Explanation:

mass of backpack, m = 8.1 kg

weight of climber, W = 656 N

height raised, h = 9.4 m

time, t = 28.2 min = 28.2 x 60 = 1692 second

weight of backpack, w = m x g = 8.1 x 9.8 = 79.38 N

Work done by the climber on the backpack = mg x h = 79.38 x 9.4 = 746.17 J

Wok done in lifting herself + backpack = (W + w) x h

                                                                 = (656 + 79.38) x 9.4 = 6912.57 J

Power developed by the climber,P = Total work / time

P = 6912.57 / 1692 = 4.09 W

3 0
4 years ago
An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. in
Yakvenalex [24]
The charges are the same in absolute value, so the change of potential energy is the same. That means that the change in kinetic energy is also the same. Then:

1 = Ke/Kp = m_e *v_e^2 / m_p * v_p^2, or

v_e/v_p = sqrt( m_p/m_e),

So the speed of the electron will be sqrt( m_p/m_e) times greater than the speed of the proton
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3 years ago
The precision of a balance is ±0.02 g. The accepted value for a measurement is 26.86 g. Which measurement is in the accepted ran
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Answer:

Ben türküm sizi anlamıyom kb

hepiniz malsınız amk

7 0
3 years ago
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Can u guys check my 3 anwsers? *^* And tell me if i got them right?
viva [34]
My answers would be as follows:

<span>You step on the scale and notice that you have lost five pounds. Which of the following has changed?


B) Only your weight changed since mass is conserved. It cannot be destroyed or created.


How could you increase the mass of a wooden block?

D) None of the above. Mass cannot be created so the mass will stay the same it will only be the weight you can increase depending on the acceleration.


If you went to the moon, how would your mass change relative to your mass on Earth?

A) It would be the same on the moon as on Earth. Mass will be the same. It is weight that will change since the gravitational acceleration in the moon is different as that to the earth.
</span>
8 0
3 years ago
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