4 years ago

What is an electrical charge ?

1 answer:

8 0

An Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

I hope this helped you with your problem.

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Determine the change in velocity of a car that starts at rest and has a final velocity of 20 m/s north

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The overall change in velocity is just 20m/s.

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It is well known that runners run more slowly around a curved track than a straight one. One hypothesis to explain this is that

barxatty [35]

Answer:

$percentage = 6.27 %$

Explanation:

As we know that when runner is moving on straight track then the net force on his feet is given as

$F_s = mg$

while when runner is moving on circular track then we have

$F_c = \sqrt{(mg)^2 + (\frac{mv^2}{R})^2}$

$F_c = m\sqrt{g^2 + \frac{v^4}{R^2}}$

$F_c = m\sqrt{9.8^2 + \frac{8^4}{18^2}}$

$F_c = m(10.42)$

now percentage change is given as

$percentage = \frac{F_c - F_s}{F_s} \times 100$

$percentage = \frac{m(10.42) - m(9.81)}{m(9.81)}\times 100$

$percentage = 6.27 %$

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3 years ago

To fight a bacterial infection, a patient was given an antibiotic to take for 10 days. After the patient finished taking the ant

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borishaifa [10]

a,b,c is your answer light and sound are not considered matter and heat is energy created from matter and electricity is particles moving basically therefore electricity is matter hope this helps

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3 years ago