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ExtremeBDS [4]
3 years ago
11

How can you turn off a magnetic field produced by an electrical current?

Physics
2 answers:
sergij07 [2.7K]3 years ago
7 0

Answer:

d) By turning the electrical current off

Explanation:

this is the only one that fits this situation because all of the other answers help improve the magnetic field.

aleksklad [387]3 years ago
6 0

Answer:By turning the electrical current off

Explanation:Trust me I took the test

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Boyle's Law mainly involves _______.
goblinko [34]
Your answer is B, gases
6 0
3 years ago
Draw graph for positive acceleration, negative acceleration and zeo acceleration​
natulia [17]

Answer:

Explanation:

horizontal is zero slope, and the vertical is undefined

3 0
3 years ago
An archer tests various arrowheads by shooting arrows at a pumpkin that is suspended from a tree branch by a rope, as shown to t
erik [133]

Answer:

Bounce 1 ,  pass 3,   emb2

Explanation:

(By the way I am also doing that question on College board physics page) For the Bounce arrow, since it bumps into the object and goes back, it means now it has a negative momentum, which means a larger momentum is given to the object. P=mv, so the velocity is larger for the object, and larger velocity means a larger kinetic energy which would result in a larger change in the potential energy. Since K=0.5mv^2=U=mgh, a larger potential energy would have a larger change in height which means it has a larger angle θ with the vertical line. Comparing with the "pass arrow" and the "Embedded arrow", the embedded arrow gives the object a larger momentum, Pi=Pf (mv=(M+m)V), it gives all its original momentum to the two objects right now. (Arrow and the pumpkin), it would have a larger velocity. However for the pass arrow, it only gives partial of its original momentum and keeps some of them for the arrow to move, which means the pumpkin has less momentum, means less velocity, and less kinetic energy transferred into the potential energy, and means less change in height, less θangle.  So it is  Bounce1, pass3, emb2.  

6 0
3 years ago
An egg is thrown upward with a velocity of 4.5 m/s. How long will it take to reach it's maximum height?
Ray Of Light [21]

Answer:

0.45 seconds

Explanation:

Letting the value of g = 10 m/s/s

final velocity (v) = 0 m/s (since the egg will come to rest at the maximum height)

initial velocity(u) = 4.5 m/s

acceleration = -10 m/s/s (since the gravity is acting against the egg)

time = t seconds

From the first equation of motion:

<em>v = u + at</em>

<em>0 = 4.5 + (-10)t</em>

<em>t = -4.5 / -10</em>

t = 0.45 seconds

3 0
3 years ago
What is the word we use for when we repeat the same thing more than once in an experiment?
AlladinOne [14]

Answer:

The answer is "Repetition"

Explanation: when you say something more than 3 times, is called repetiton

7 0
3 years ago
Read 2 more answers
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