All categories

2 years ago

This is my question. I need the answer stat.

Physics

2 answers:

Delvig [45]2 years ago

6 0

The safety stuff should be put on before you do anything else.

Even before you load the lab coffeepot.

Kipish [7]2 years ago

5 0

Answer:

Explanatioyour answers look right, but if there has , has to be another answer its a , but your answers are right

You might be interested in

Relative means

Bond [772]

Answer:As a noun relative means a person who is connected with others by blood.

7 0

2 years ago

Mechanical (sound) waves to Earth from satellites. How is this possible? aves are unable to travel through a vacuum, such as thr

Anuta_ua [19.1K]

Sound waves are not able to travel in a vacuum, sound requires a medium such as air or a solid for example. Satellites are indeed in space, but radio waves are not sound waves they are a form of light. Light can travel in a vacuum so the messages that satellites beam back to Earth are light waves not sound waves, that is why it is possible.

6 0

2 years ago

What do the different colors in a line spectrum represent? why are the spectra for each element unique?

Lana71 [14]

They typically represents different wavelengths of element due to its energy emission in the form of visible light. When an electron of that particular element move from a higher energy level down to a lower energy level, it gives off energy in the form of photon emission. Atom of a certain element has a unique electron arrangement thus it can considered that particular element's spectrum is unique.

8 0

2 years ago

The quantum state of a particle can be specified by giving a complete set of quantum numbers (n,l, ml, ms). How many different q

Delvig [45]

Answer:

number of quantum states = 8

Explanation:

To find the total number of allowed states you take into account the following relations:

$l=n-1\\\\m_l=-l,-(l-1),...,0,,,,(l-1),l$

in this case you have:

$n=2\\\\l=0,1\\\\m_0=0\\\\m_1=-1,0,1$

furthermore, for each n,l,ml quantum state you have two additional states due to the spin of the electrons.

then, you have (n,l,ml) = (2,0,0), (2,1,-1), (2,1,0), (2,1,1) and with the spin:

number of quantum states = 2*(1+3) = 8

4 0

3 years ago

What resource is used to make fertilizers and other products such as toothpaste and insecticides?

igomit [66]

Answer:

Silica

Explanation:

The most commonly used abrasives are hydrated silica (softened silica), calcium carbonate (also known as chalk), and sodium bicarbonate (baking soda).

5 0

2 years ago