If an atom gains electrons, it becomes a <span>B. negatively charged ion.
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Answer:
It takes the motorcycle about 12.65 seconds to reach 100mph
Explanation:
The electrons in a piece of metal will leave when the polarized magnesis effect is reppeled and heated up to a certain tempeture.
Voltage = (current) x (resistance) (Ohm's law)
Voltage = (15 A) x (18 ohms)
<em>Voltage = 270 volts</em>
You'll be using the equation f = m a, or force = mass x acceleration
First, you have to find the acceleration. The acceleration needed is the average acceleration over the 15 seconds is accelerated. So, you take the change in speed (25m/s - 15m/s) to get a change of 10m/s.
The average acceleration (acceleration per second) is found by dividing total acceleration by the time it took. So, it's 10 / 15, which equals .6. This is a, your acceleration
Now just plug it into the equation F = m a, because it already gives you the mass of the car
F = 550 x .6
Solve that to get F = 366.6. F is measured in Newtons (N), so your answer is 366.6N