What is the biggest planet in our galaxy

Answers

Answer 1

Answer: We won't be able to answer that until we've seen all of them and
we know that there aren't any more that we haven't seen yet.

There are estimated to be between 200 billion and 400 billion stars
in our galaxy, and a large part of the stars in the galaxy aren't visible
to us. So you can see that it's going to take some time before we're
able to answer your question. Check back with us next Tuesday.

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How do scientist know that seismic waves can be either compressional or transverse

Answers

Hey there!

Scientists know that seismic waves can be either compressional or transverse because there are horizontal and vertical movements during an earthquake. Horizontal movements are compressional while vertical movements are transverse.

Thank you!

Which is larger an atom or a molecule

Answers

MOLECULE;
For example, a hydrogen atom forms one bond, an oxygen atom forms two, and carbon forms four bonds. Look at that molecule of water again - each hydrogen has one bond, and the oxygen in the middle has two bonds. Molecules can be much bigger.

People working in nuclear plants wear special monitoring devices to track their exposure to radiation. Radioactive materials used in plants emit particles but they also emit high energy waves that are potentially lethal to human life. These waves are ______ waves

Answers

Answer:

Gamma rays

Explanation:

Gamma rays are usually defined as a type of electromagnetic radiations, that are characterized by the presence of shorter wavelength and higher energy. These are the common radiations that are released from the radioactive substances, where an unstable nucleus of an atom releases an excess amount of energy by undergoing continuous electromagnetic processes.

These are harmful to humans and other organisms, as they are comprised of very high energy and they can easily penetrate through the bodies of humans and other organisms.

These gamma particles are emitted in the power plants, where the people working in it wear a special type of device that helps them in monitoring the exposure to radiation.

It could also be gamma rays i don't really know

Someone please help me

Answers

Answer:

D or 49.7°

Explanation:

You are given the equation and all the information you need, so you simply need to understand what the question asks for and answer appropriately. Notice that the light wave travels from the water to air. This means that water should be labelled with a "1" as it comes prior to air, which should be labeled "2". Thus, all you need to do, is plug and chug:

$\theta_2 = sin^(-1)((n_1sin(\theta_1))/(n_2)) = sin^(-1)(((1.33)sin(35))/(1))$

$\theta_2 = sin^(-1)(0.763) = 49.7^o$

And, therefore, your answer is D, 49.7°.

Sodium hydroxide (NaOH) was added to pure water (H2O). Which most likely were the pH values of the water before and after the sodium hydroxide was added to it?A. before = 7, after = 9
B. before = 7, after = 4
C. before = 4, after = 7
D. before = 9, after = 7

Answers

Before 7 after 9. A pH smaller than 7 indicates acidity with 0 being completely acidic. A pH greater than 7 shows alkalinity with 14 being completely alkaline. 7 is neutral. Since NaOH is alkaline, adding it to a neutral substance would increase the pH and it would increase from 7 to 9.

Answer:

A before = 7, after = 9

Explanation:

Explain why It takes longer to heat a cinema to the same temperature as a house.

Answers

i think because a cinema is bigger than a house.

Other Questions

A solid aluminum cube has sides each of length L . A second cube of the same material has sides four times the length of the first cube; i.e., 4 L . Compared to the first cube, the total surface area of the second cube is 1. twenty-seven times the first cube. 2. sixteen times the first cube. 3. sixty-four times the first cube. 4. eight times the first cube. 5. twenty-four times the first cube. 6. two times the first cube

HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Some people consider the earth to be _____ because of its dynamic processes or cycles.stagnantalivechanging

Human activities can have an impact on natural disasters.

If the stone loses 10% of its speed in 10 s of grinding, what is the force with which the man presses the knife against the stone?