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4 years ago

13

Explain how electric current is able to flow

1 answer:

amid [387]4 years ago

5 0

Answer:

Electric current is described as moving from the positive to the negative end of the circuit. Electrons are able to flow in conductors, usually metals, because in metallic bonding the outer electrons of the metal atoms flow freely around between atoms.

Explanation:

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Please write a detailed explanation of Earth’s magnetic declination and explain how this has changed over time. (25 points)

anzhelika [568]

Explanation:

i know the anwser

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3 years ago

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A train 471 m long is moving on a straight track with a speed of 75.1 km/h. The engineer applies the brakes at a crossing, and l

hram777 [196]

Answer:

$t = 37.6 s$

Explanation:

As we know that train is initially moving with the speed

$v_i = 75.1 km/h$

now we know that

$v_i = 20.86 m/s$

now the final speed of the train when it crossed the crossing

$v_f = 15 km/h$

$v_f = 4.17 m/s$

now we can use kinematics here

$v_f^2 - v_i^2 = 2 a d$

$4.17^2 - 20.86^2 = 2 a(471)$

$a = -0.44 m/s^2$

Now the time to cross that junction is given as

$v_f - v_i = at$

$4.17 - 20.86 = a(-0.44)$

$t = 37.6 s$

4 0

3 years ago

Which equation can be used to solve for acceleration? <br><br>

antoniya [11.8K]

A = d/t
hope this helps x

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4 years ago

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A bicyclist travels in a circle of radius 30.0 m at a constant speed of 8.00 m/s. the bicycle-rider mass is 82.0 kg calculate ne

IceJOKER [234]

F=m*(v^2/r)
F=82*(8^2/30)
F=174.9N

7 0

3 years ago

Sleep is a component of which part of the health triangle

katrin [286]

Answer:

physical health

Explanation:

Physical health has many components including: exercise, nutrition, sleep, alcohol & drugs, and weight management.

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4 years ago