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OleMash [197]
3 years ago
8

Which does not represent a change in velocity?

Physics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

A balloon is floating up into the air at 1 m/s.

Explanation:

Velocity is the displacement divided by the time;

   Velocity = \frac{displacement}{time}

It is a vector quantity that has magnitude and direction.

The choice that shows a change in direction is a correct specification of velocity.

A balloon floating up into the air at 1m/s shows no directional change.

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irina [24]

Had to submit as image as it wouldn't let me paste these symbols in the answer box

hope this helps:)

5 0
3 years ago
A man driving a car is exactly 5000 meters due west from the line marking the eastern time zone. He
laiz [17]
The eastern time zone would the opposite side of the angle made by his car. So this means he would be traveling 30cos30 m/s completely in the east direction. Or approximately 26 m/s in the East direction. 5000 m divided by this answer results in approximately 192 seconds. I would use a calculator to get a more exact answer
8 0
3 years ago
Explain how forces of attraction and repulsion exist within an atom. describe how an electric charge is developed by friction or
dalvyx [7]

There are three kinds of forces within the atom:

  i) Electromagnetic force of attraction between the electrons and protons

  ii) Electromagnetic force of repulsion between the protons or weak nuclear force

  iii) Strong nuclear force between the electrons and protons

<h3>What is nuclear force?</h3>

The electromagnetic force of attraction:

  • Electrons circle in the orbits above the nucleus. There exists an electromagnetic force of pull between the electrons and protons. That’s why electrons do not depart the atom.

Weak nuclear force:

  • It is an electromagnetic significance of revulsion between the protons in the nucleus of the atoms.

Strong nuclear force:

  • This force is strongest from all the fundamental details and exists between the protons and neutrons in the nucleus of an atom. This pressure overcomes the weak nuclear force and does not allow protons to stray out.

To learn more about nuclear force, refer to:
brainly.com/question/8695581

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3 0
2 years ago
The wavelength of 10^15-Hz light is:
Vanyuwa [196]

Answer:

D.300nm

Explanation:

Wavelength = Speed of light / Frequency of light.....

where the speed of light is...(3 × 10^8)

Wavelength = (3 × 10^8)/(1 × 10^15)

Wavelength = 3 × 10^-7

;Wavelength = 300 × 10^-9

Hence its....300 nm

5 0
3 years ago
The carbon monoxide molecule (CO) consists of a carbon atom and an oxygen atom separated by a distance of
valkas [14]

Answer:

6.46*10^-11m

Explanation:

We can use the equation of the center of the mass of two atoms

Xcm=\frac{mcxc+moxo}{mc+mo}

If we take the origin at the center of the molecule carbon monoxice, xc will be 0, so

Xcm=\frac{moxo}{mc+mo}=\frac{xo}{mc/mo+1}

Xcm=\frac{1.13.10^-3}{0.750mo/mo+1}=6.46*10^-11m

7 0
3 years ago
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