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3 years ago

What are some differences you can spot in a periodic table?

1 answer:

7 0

"The position of each element in the table gives important information about its structure, properties, and behavior in chemical reactions. Specifically, an element's position in the periodic table helps you figure out its electron configuration, how the electrons are organized around the nucleus."

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Which of the following provides the best evidence in support of the big bang

Svetllana [295]

C. The Uniformity of Cosmic Background Radiation

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3 years ago

An electric pump has 2kW power . How much water will it lift every minute if the height is 10 m ?

valkas [14]

Answer:

Given that,

Power = 2000 W
time = 60 seconds
distance= 10m

Power = work done ÷ time

Here, since the movement is vertical, w = mgh

So,

Power = mgh÷t

2000 = (m × 9.8 ×10) ÷ 60

m = (2000 ×60) ÷98

m = 1224.5kg

3 0

3 years ago

Which of the following account for the differences between radio waves, X-rays, and gamma rays? Check all that apply

Ket [755]

Answer: A. Frequency

B. Wavelength

Explanation: Electromagnetic waves are waves which can travel through the vacuum. Electromagnetic waves have electrical and magnetic component associated with them.

Electromagnetic waves are arranged in order of increasing frequencies or decreasing wavelengths.

Radio waves, X-rays, and gamma rays are all electromagnetic waves which have different wavelengths and thus have different frequencies. But they all travel with the speed of light.

$\nu=\frac{c}{\lambda}$

The order of frequency of given waves : gamma rays > X rays> Radio waves.

The order of wavelength of given waves : gamma rays < X rays < Radio waves.

4 0

4 years ago

Read 2 more answers

The weight of an iron block is 8.0±0.3? and is placed on a wooden base of area, 3.5±0.2? 2. Calculate the pressure exerted by th

vesna_86 [32]

Answer:

Explanation:

Units...Nothing is accurate without UNITS. 8.0±0.3 lbs,? Newtons? 3.5±0.2 m²? ft²? cm²? km²? furlong²? fathoms²?

your answer will be 8.0±0.3 / 3.5±0.2 units / units²

8 0

3 years ago

5. Why are ceramics and plastics good insulators?

jeka57 [31]

Answer:

Here

Explanation:

They don't have free electrons moving around (delocalised electrons) so they can't conduct heat and electricity which gives them a property of good insulators. The insulators stop us having an electric shock because they don't conduct electricity as we use them to insulate metal wires and other metallic things. can i have brainliest now pls!

3 0

3 years ago