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4 years ago

9

When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?

1 answer:

fomenos4 years ago

6 0

The correct answer is answer choice C. +1. Since electrons have negative charges, losing one electron will cause the atom to have a positive charge of 1. This charge comes from the protons, which, until one electron was lost, balanced out the negative charge of the electrons and caused the atom to be neutral.

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Name at least three physical properties of the bowling ball.

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Answer:

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3 years ago

One kind of baseball pitching machine works by rotating light and stiff rigid rod about a horizontal axis until the ball is movi

erastova [34]

Answer:

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Explanation:

Given that,

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Speed = 81 mph = 36.2 m/s

Distance = 81 cm

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Using formula of centripetal acceleration

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Where, v = speed

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(b). We need to calculate the magnitude of the net force that is acting on the ball just before it is released

Using formula of force

$F=\dfrac{mv^2}{r}$

Put the value into the formula

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Hence, (a). The ball's centripetal acceleration is $16.17\times10^{2}\ m/s^2$

(b). The magnitude of the net force is 232.9 N.

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