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yanalaym [24]
3 years ago
13

Why do compass needles around a current carrying wire point in different directions

Physics
1 answer:
Marizza181 [45]3 years ago
3 0

Answer: because of the magnetic

Explanation:  If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected. Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing.

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A ball which is dropped from the top of a building strikes the ground with a speed of 30m/s. Assume air resistance can be ignore
Vika [28.1K]

Answer:

               h= 45.87 m.

Explanation:

Data given:

Vf= 30m/s ,     and we know that g = 9.8 m/s²    

The ball has an initial velocity of zero      Vi = 0 m/s²    

To Find:

Height of the building = ?

Solution:

       According to 3rd law of the motion;

                                      2aS= Vf² - Vi²                      ( S= h , a=g)

                                     2*9.81*h = (30)² - (0)²

                                      h= 45.87 m.

3 0
3 years ago
I need help with this too. (im not good at science or math)
mr_godi [17]

Answer:

i belive 1 m/s

Explanation:

dividing displacement from time it should be 1 cuz 5/5 is 1

please tell me if right!

6 0
3 years ago
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How are scientific methods used to answer a question???
Oksanka [162]
You fallow the steps to figure out the complete answer of the question.
7 0
3 years ago
What is hard water and what is soft water
katrin [286]
Water that is "hard" <span>contains a certain amount of dissolved minerals (like calcium and magnesium). 
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A consumer is an organism that gets its energy ______from <br> All_____ are consumers.
Nataly [62]
An consumer is an organism that gets energy from eating other organisms.
All animals are consumers
7 0
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