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Schach [20]
3 years ago
7

What causes some materials to have a magnetic fields?

Physics
2 answers:
TiliK225 [7]3 years ago
8 0

Answer:

pole

Explanation:

Viktor [21]3 years ago
6 0
Well it determines on how much  magnetism a material has.
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A certain runner averages 4.1 m/s over a 10
Ghella [55]

Answer: 40.650406504065 or 40 minutes and 39 seconds.

Explanation:

1 k = 1000m

race = 10000m

runner time = 10000 / 4.1

runner time = 2439.0243902439024 seconds

runner time = 2439.0243902439024/60 = 40.650406504065 or 40 minutes and 39 seconds.

6 0
2 years ago
What is the centripetal acceleration of a ball on a string that is whirled horizontally over a boy’s head? The radius of the cir
Leya [2.2K]
Well the centripetal acceleration would be 9.82 squared. That is the correct answer. I hope this helped you. Have a great day! :)
4 0
3 years ago
Read 2 more answers
Coherent light with wavelength 540 nm passes through narrow slits with a separation of 0.370 mm .Part AAt a distance from the sl
77julia77 [94]

Answer:

The phase difference between waves 31.7 rad

Explanation:

Given :

Wavelength \lambda = 540 \times 10^{-9} m

Separation between two slit d = 0.370 \times 10^{-3} m

Angle \theta = 25°

From the formula of phase difference,

  \delta = \frac{2\pi d }{\lambda}  \sin \theta

Where \delta = phase difference

\delta = \frac{2 \times \pi \times 0.370 \times 10^{-3} }{540 \times 10^{-9} } \sin 25

\delta = 31.7 rad

Therefore, the phase difference between waves 31.7 rad

5 0
2 years ago
Explain four different types of fitness technologies that are used to help improve your fitness level.
irina1246 [14]

Answer: endurance, strength, balance, flexibility

Explanation:

walking, jogging, swimming, biking

4 0
1 year ago
when arti kicks a football two forces interact, arti's foot exerts a force of 5N on the ball. what size force will be exerted on
CaHeK987 [17]

Answer:

F=MA

5N=M×10M/SQ.

1/2 KG. =MASS

3 0
2 years ago
Read 2 more answers
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