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2 years ago

For most substances, the distance between particles is smallest when the substance exists as

Physics

1 answer:

Akimi4 [234]2 years ago

7 0

C a solid because they don't move around and they stay tight

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When a pot of water is put on a stove, the water at the top gets hot primarily by ____.

Vedmedyk [2.9K]

Answer
1. c. convection
2. b. When it is very cold

Explanation
Water like any other liquid transfer heat energy through convection.

When a pot of water is put on a stove, the water at the top gets hot primarily by convection.

A supperconductor is a material that can conduct electric current with no resistance at all.
The supperconductivity can be achieved under cooled temperatures.

Certain materials can become superconductors under what conditions? When it is very cold

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2 years ago

Read 2 more answers

Name the characteristics of electro magnetic waves that i) increases ii) remains constant in the electromagneticspectrum as one

Paul [167]

As we move from Radiowaves to UV waves in electromagnetic spectrum we know that the wavelength is maximum for radio waves while its frequency is minimum

PART (i)

So as we move from radiowaves to UV region

the Frequency will increase

Part (ii)

As we move from Radiowaves to UV region all the parts must have same speed in same medium

All parts will move with speed of light

so Speed will remain the same

4 0

3 years ago

An open 1-m-diameter tank contains water at a depth of 0.5 m when at rest. As the tank is rotated about its vertical axis the ce

Morgarella [4.7K]

Answer:

Angular velocity (w) = 8.86 rad/s

Explanation:

Angular velocity (w) = $\sqrt{} 4ghi/R^{2}$

g= 9.81 m/s

R= 0.5

hi (initial depth) = 0.5m

Hence= $\sqrt4* 9.81* 0.5/0.5^{2}$ = 8.86 rad/s

3 0

2 years ago

A box having a mass of 0.2 kg is dragged across a horizontal floor by

Lyrx [107]

you can check attachment for answer.

kind regards

7 0

2 years ago

A 2.0-kg block is on a perfectly smooth (frictionless) ramp that makes an angle of 30^\circ30 ∘ with the horizontal. What is

Nastasia [14]

Answer:

Explanation:

Since the surface is frictionless therefore there will be no friction force on block but there will be weight of block which we can divide in to two components i.e. mgcosθ &mgsinθ which is perpendicular and parallel to the surface respectively.

In response to mgcosθ ramp will apply a normal force to the block which will be of equal magnitude to that of mgcosθ.

Therefore Ramp will apply a Force of mgcosθ on block where m is the mass of block.

7 0

2 years ago