A glass jar contains 1 kg of liquid. This is the same as: 1,000 mL 1,000 cm3 1,000 g

Answers

Answer 1

Answer: If the liquid is water and the temperature is 4 degrees, then it is the same as 1,000 mL, because 1,000 milliliters is 1 liter and 1 liter = 1 kilogram at those conditions.

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The period of a sound wave is 0.002 seconds. The speed of a sound is 344 m/s. Find the frequency and wavelength of the sound wave.

Answers

The frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.

What is Period and Wavelength?

Period is simply the time taken for a complete cycle of vibration to pass a given point. Frequency is expressed as;

f = 1/T

Where f is frequency and T is period of time.

Given that;

Period T = 0.002s
Frequency f = ?

f = 1/0.002s

f = 500s⁻¹

f = 500Hz

Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.

From the wavelength, frequency and speed relation,

λ = s ÷ f

Where λ is wavelength, s is speed and f is frequency.

Given that;

Speed c = 344m/s
Frequency f = 500Hz
Wavelength λ = ?

λ = s ÷ f

λ = 344m/s ÷ 500s⁻¹

λ = 0.688m

Therefore, the frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.

Learn more about Speed, Frequency and Wavelength here: brainly.com/question/27120701

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Answer:

Given

Time (T) = 0.002 sec

Velocity(V) = 344 m/s

Frequency (f) = ?

Wavelength (w) = ?

Explanation:

We know that

Frequency (f) = 1/ t

= 1/ 0.002

= 500 hertz

Now

wavelength = V/f

= 344/500

= 0.688 m

Describe each of the three types of hazardous weather forecasts

Answers

Well, there can be a tornado that is very severe when hot and cold air mixes making air swirl and create a triangular shaped spinning air. There are lightning storms when lightning bolts come from the sky, and there are hurricanes when there are lots of rain coming towards your way due to change in climate such as global warming, it often occurs in humid places.

Please! Explain a connection with a molecule and matter.

Answers

An atom is the basic unit of a chemical element while a molecule is an electrically neutral group of two or more atoms held together by chemical bonds. I guess its connected because in a molecule, its two or more atoms because of the bond.

When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?A. -1
B. -2
C. +2
D. +1

Answers

If a potassium atom loses one electron than it becomes a +1 charge, because the electrons are negative and the nucleus is positive (the positive comes from the protons). The protons and electrons balance out so it has a neutral charge, but if the atom loses an electrons it has a positive charge, but if the atom gains an electron than it becomes negative. the charge (+/- and the number) of the atom depends on how many electron the atom gains/loses.
the answer is (D.) +1

I hope this helps.

When a potassium atom loses one electron, it forms a potassium ion. Since electrons carry a negative charge, losing one electron results in an overall positive charge for the ion. Therefore the correct answer is (D).

A potassium atom normally has 19 protons and 19 electrons. The number of protons and electrons is equal, so the atom is electrically neutral overall.

However, when a potassium atom loses one electron, it means that it now has 19 protons and only 18 electrons. Since protons are positively charged and electrons are negatively charged, losing one negatively charged electron leaves the atom with a net positive charge.

Since there is one more positive charge than a negative charge, the potassium ion has a positive charge of +1. This means the potassium ion has one more positive charge than it has negative charges, making it a cation with a +1 electrical charge.

In summary, when a potassium atom loses one electron, it becomes a potassium ion with a positive charge of +1. Therefore the correct answer is (D).

To know more about the potassium atom:

brainly.com/question/28566765

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