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kondor19780726 [428]
3 years ago
15

When an electron loses or gains a charge, it becomes?​

Physics
2 answers:
suter [353]3 years ago
6 0

Answer:

It becomes an Ion with either positive or negative charge

Inessa [10]3 years ago
5 0

Answer:

When an atom gains/loses an electron, the atom becomes charged, and is called an ion. Gaining an electron results in a negative charge, so the atom is an anion. Losing an electron results in a positive charge, so atom ion is a cation.

Explanation:

hehe

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Track and field is an individual sport.<br> True or False?
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Most events in track and field are individual except relay races. Therefore, it would probably be true.
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What happens when the temperature of a substance is increased?
Amiraneli [1.4K]
When the temperature of a substance is increased, the kinetic energy of the particles of the substance is increased as well.

This can lead to thermal expansion such as an increase in length of the substance or increase in volume of the substance.

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7 0
4 years ago
1. A jet lands on an aircraft carrier at a speed of 140 mi/h [ 1.00 mile = 1.61 km]
Iteru [2.4K]
Answer:

Acceleration, a = -31.29 m/s²

Explanation:

It is given that, Initial speed of the aircraft, u = 140 mi/h =

62.58 m/s

Finally, it stops, v = 0

Time taken, t = 2 s

Let a is the acceleration of the aircraft. We know that the rate of change of velocity is called acceleration of the object. It is given by :

a = t

0-62.58 2 a =

a = -31.29 m/s²

So, the acceleration of the aircraft is 31.29 m/s²

and the car is decelerating. Hence, this is the required solution.
(i found this answer becuase i could do the math)

5 0
3 years ago
What happens when sulfur reacts with potassium?
Burka [1]
Electrons move from the potassium atoms to the sulfur atoms.
8 0
3 years ago
A 20-foot ladder is leaning against the wall. If the base of the ladder is sliding away from the wall at the rate of 3 feet per
tamaranim1 [39]

Answer:

<u>6.87 ft/s</u> is the rate at which the top of ladder slides down.

Explanation:

Given:

Length of the ladder is, L=20\ ft

Let the top of ladder be at height of 'h' and the bottom of the ladder be at a distance of 'b' from the wall.

Now, from triangle ABC,

AB² + BC² = AC²

h^2+b^2=L^2\\h^2+b^2=20^2\\h^2+b^2=400----1

Differentiating the above equation with respect to time, 't'. This gives,

\frac{d}{dt}(h^2+b^2)=\frac{d}{dt}(400)\\\\\frac{d}{dt}(h^2)+\frac{d}{dt}(b^2)=0\\\\2h\frac{dh}{dt}+2b\frac{db}{dt}=0\\\\h\frac{dh}{dt}+b\frac{db}{dt}=0--------2

In the above equation the term \frac{dh}{dt} is the rate at which top of ladder slides down and \frac{db}{dt} is the rate at which bottom of ladder slides away.

Now, as per question, h=8\ ft, \frac{db}{dt}=3\ ft/s

Plug in h=8 in equation (1) and solve for b. This gives,

8^2+b^2=400\\64+b^2=400\\b^2=400-64\\b^2=336\\b=\sqrt{336}=18.33\ ft

Now, plug in all the given values in equation (2) and solve for \frac{dh}{dt}

8\times \frac{dh}{dt}+18.33\times 3=0\\8\times \frac{dh}{dt}+54.99=0\\8\times \frac{dh}{dt}=-54.99\\ \frac{dh}{dt}=-\frac{54.99}{8}=-6.87\ ft/s

Therefore, the rate at which the top of ladder slide down is 6.87 ft/s. The negative sign implies that the height is reducing with time which is true because it is sliding down.

8 0
4 years ago
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