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sertanlavr [38]
3 years ago
10

When a ball is thrown up vertically, explain what happens and explain why final velocity is zero ​

Physics
1 answer:
ipn [44]3 years ago
3 0

Answer:

As you throw the ball up into the air, its direction is up, but the speed decreases due to the pull of gravity. The ball slows down, and at the very top of its flight, its velocity at that instant is zero.

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What are some examples of transverse waves?
Deffense [45]

Answer:

-ripples on the surface of water.

-vibrations in a guitar string.

-a Mexican wave in a sports stadium.

-electromagnetic waves – eg light waves, microwaves, radio waves.

-seismic S-waves.

Explanation:

I've done this question before

7 0
3 years ago
Which of the following is an implication of the law of inertia?
Thepotemich [5.8K]

Answer:

A

Explanation:

An object in motion will stay in motion unless acted upon by an external force.

Say you rolled a ball on the ground, eventually it will stop because of friction and gravity

7 0
3 years ago
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A student constructs a simple constant volume gas thermometer and calibrates it using the boiling point of water, 100°C, and the
just olya [345]

Answer:

The pressure corresponding to the absolute zero temperature is 0.997atm.

Explanation:

To solve this question, you draw a straight vertical line with the boiling point temperature and pressure on top of the line and the freezing point temperature and pressure on the lower part. The absolute temperature somewhere in the middle of the line with the pressure to be obtained.

So, we have;

0- (-19) / 100 - (-19) = P - 0.9267 / 1.366 - 0.9267

19 / 119 = P - 0.9267 / 0.4393

Cross multiply, we have

19 * 0.4393 = 119(P -0.9267)

8.3467 = 119P - 110.2773

119P = 118.624

P = 0.997 atm

So at 0°C, the pressure of the thermometer is 0.997atm.

4 0
3 years ago
How is electron movement related to the bonding in sodium chloride? A) The atomic orbitals overlap and share electrons causing a
posledela

Answer: Option (C) is the correct answer.

Explanation:

Sodium has atomic number 11 and its electronic distribution is 2, 8, 1. Whereas chlorine has atomic number 17 and its electronic configuration is 2, 8, 7.

Therefore, we can see that sodium has one extra electron and chlorine has deficiency of one electron.

So, in order to complete their octet sodium will give its one valence electron to the chlorine atom. Hence, there is exchange of electrons and thus it will result in the formation of ionic bond.

Thus, we can conclude that in sodium chloride electron movement is related to the bonding as electrons exchange creating ions to form an ionic bond by electrostatic attraction.

8 0
3 years ago
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A horse and rider are racing to the right with a speed of 21\,\dfrac{\text m}{\text s}21 s m ​ 21, start fraction, start text, m
Marrrta [24]

Answer:

a=-4.2 m/s²

Explanation:

The horse  riding so inital velocity is given finally the rider stops so the final velocity is zero.

initial velocity =Vi= 21 m/s

final velocity =Vf= 0 m/s

distance covered = S=52 m

By using 2nd equation of motion we can find the acceleration

 2aS=Vf² -Vi²

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So the accceleration is 4.2 m/s².

7 0
4 years ago
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