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lesantik [10]
3 years ago
9

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

Physics
1 answer:
fomenos3 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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You carry a 20 N bag of dog food up a 6.0 m flight of stairs. How much work was done?
MariettaO [177]
Answer:
120 J

Explanation:


Formula Of Work= Work= Force x Displacement

Work= 20 N x 6.0

Work= 120 Joules

The reason I put joules because the Unit of work is joules
8 0
2 years ago
The moon orbits the earth once every 27 days at a distance of 384400 km. The international space station orbits the earth at an
Leno4ka [110]

Answer:

ive never done this befor but i think its 36 times aroud earth a day

Explanation:

384400/400=961  

961% of 27 days is 40minuets

1440/40=36

7 0
2 years ago
A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force
kramer
These forces form a force pair. Use Newton's third law, and you see that the trailer pulls back at with the same force. The answer is d.
6 0
3 years ago
Read 2 more answers
** URGENT** The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If th
Vlad [161]

As we know that in transformers we have

\frac{V_s}{V_p} = \frac{N_s}{N_p}

here we know that

V_s = 17,500 Volts

V_p = 350,000 Volts

N_s = 600 coils

now from above equation we will have

\frac{17500}{350000} = \frac{600}{N_p}

N_p = 600\times \frac{350000}{17500}

N_p = 12000 coils

6 0
3 years ago
According to the periodic table, which of the following elements has five energy levels
Alex Ar [27]
<span>Antimony I am pretty sure is one. </span>
7 0
3 years ago
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