All categories

4 years ago

Static electricity occurs when electrons build up and _________

1 answer:

5 0

Static electricity is a buildup of electric charges on objects. Charges build up when negative electrons are transferred from one object to another. The object that gives up electrons becomes positively charged, and the object that accepts the electrons becomes negatively charged. This can happen in several ways

You might be interested in

Name four type of friction and give one example for each

Sav [38]

Rolling friction ex. Riding a bike or skateboard
Sliding friction ex. Cartilage against your bone.
Fluid friction ex. Rowing a boat through the water.
Static friction ex. Trying to push a heavy object/ furniture

8 0

3 years ago

Read 2 more answers

A Jaguar XK8 convertible has an eight-cylinder engine. At the beginning of its compression stroke, one of the cylinders contains

Colt1911 [192]

If only I was smart then I could help you :/ no but like for real im madddd dumb sorry :(

4 0

4 years ago

Water has a mass per mole of 18.0 g/mol, and each water mo- lecule (H2O) has 10 electrons. (a) How many electrons are there in o

Dovator [93]

Answer:

a) There are $3,35*10^{26}$ electrons in a liter of water.

b) The net charge is -53601707,1 C

Explanation:

a) To find out how many electrons are in a liter of water (equivalent to 1000 grams of water), we have to find out how many molecules of water there are and then multiply it by 10 (e- per molecule).

We can find out how many molecules are by finding the number of moles and then multiplying it by Avogadro's number (number of elements per mol):

$e^{-}= \frac{m_{water} }{M_{water} } * Avogadro* \frac{e^{-} }{molecule}= \frac{1000g }{18g/mol} * 6,022*10^{23} * \frac{10e^{-} }{molecule}=3,35*10^{26} e^{-}$

b) As all electrons have the same charge, in order to find the net charge of those electrons we have to multiply the charge of a single electron by the number of electrons:

$Net charge= -1,602*10^{-19} \frac{C}{e^{-} } *3,35*10^{26} e^{-}=-53601707,1 C$

An important clarification is that while the net charge may seem huge, water as a whole is a neutral medium, because there are as many protons as there are electrons, and as they have the same charge, the net charge of water is 0.

8 0

4 years ago

Light traveling through plate glass (n = 1.52) approaches the surface, i.e. the air-glass interface. What minimum incident angle

Ilia_Sergeevich [38]

Answer:

41°

Explanation:

refractive index of glass, n = 1.52

For total internal reflection, the angle of refraction in rarer medium is 90°.

r = 90°

Let the angle of refraction in denser medium, that means in glass is i.

By use of Snell's law

refractive index of rarer medium with respect to denser medium, that means refractive index of air with respect to glass = 1 / n

And

$\frac{1}{n}=\frac{Sin i}{Sin r}$

$\frac{1}{1.52}=\frac{Sin i}{Sin 90}$

$0.658= Sin i$

i = 41°

Thus, the angle of incidence should be 41°.

8 0

3 years ago

The gravity of Earth is attracting a person towards the center with 500N of gravitational force. The person is exerting a reacti

slavikrds [6]

Answer:

The force is being pulled my the gravity or it could be a third party thing like a black hole you feel me

Explanation:

8 0

3 years ago