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Allisa [31]
3 years ago
10

A wire that is 0.36 meters long moves perpendicularly through a magnetic field at a speed of 0.21 meters/second. The induced emf

produced in the wire is 0.45 volts. What is the magnetic field strength?
Physics
2 answers:
dmitriy555 [2]3 years ago
8 0
0.034 newtons/amp·meter

expeople1 [14]3 years ago
8 0
0.034 newtons/amp-meter
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When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point of a vertical toss). The racq
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Answer:

<h2> 0.041kg</h2>

Explanation:

Step one:

given data

initial velocity u= 0m/s

Force F= 443N

time t= 4.3 ms= 0.0043seconds

final velocity v= 45.7m/s

Step two:

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mass m

we know that the expression for impulse is given as

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m=443*0.0043/45.7

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6 0
3 years ago
Question 10 of 34
labwork [276]

Julia walks from the park, which is six blocks east of her house, to the store, which is three blocks east of her house. Julia walks for 5 minutes. This walk's average speed will be 1.2 blocks per minute. Option B is correct.

<h3>What is displacement?</h3>

Displacement is defined as the shortest distance between the two points. Distance is the horizontal length covered by the body. While displacement is the shortest distance between the two points.

Displacement is a vector quantity .its unit is m.

The average velocity on this walk will be;

\rm v_{avg}= \frac{d}{t} \\\\ \rm v_{avg}= \frac{6 \ block+ 3 \ block }{5 \ minute } \\\\ v_{avg}=1.4  \ block /min

Hence option B is correct.

To learn more about displacement refer to the link; brainly.com/question/10919017

#SPJ1

3 0
2 years ago
Precautions taken when doing experiment on simple pendulum​
olchik [2.2K]

Answer:

1.)The bob of pendulum should be displaced with a small angle.

2) The amplitude of the oscillation of a simple pendulum should be small.

3) Fans should be switched off to reduce the air resistance.

4)The simple pendulum should be oscillate in a vertical plane

Hope this helped you

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Bismuth-210 has a half-life of 5 days. If you
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Answer:

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6 0
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The force from the athlete pushing backwards on the starting blocks is
lara [203]

Explanation:

It's Muscular Force friend

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