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3 years ago

Write a letter to a Friend congratulating her / him for her excellent result in annual examination. class 5 the

Physics

1 answer:

gulaghasi [49]3 years ago

7 0

Answer:

ok will do that

Explanation:

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The primary purpose of describing planetary orbits in terms of epicycles and deferents was to account for the

dexar [7]

Retrograde. Planets seem to move forward and then backward sometimes. This is really because we pass them as we move in our orbit but astronomers wanted to try to describe the solar system with earth at the center so elaborate models were employed.

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4 years ago

An elephant and a mouse would both have zero weight in gravity-free space. If they were moving toward you with the same speed, w

Dovator [93]

The elephant and the mouse having zero weight in a gravity free space will not bump into you at the same effect.

<u>Explanation: </u>

When both are in a gravity free space, the weights are zero, as we know that the $\text {weight of the body}=\text {mass of the body} \times \text {acceleration due to gravity}$

$\text {here, the weight of elephant}=\text {mass of elephant } \times \text {zero gravti} y=zero$

$\text {similarly,weight of mouse}=\text {mass of mouse } \times \text {zero gravity}=zero$

But when they will acquire the speed of same magnitude, say v, their different masses will acquire different momentum, which will make the difference in effect while bumping.

$\text { momentum of elephant }=\text { mass of elephant } \times v$ $\text { momentum of mouse = mass of mouse } \times v$

And as we know $\text { mass of elephant }>\text { mass of mouse }$ Therefore, effect of impact by elephant will be more than that of mouse . An elephant breaking into you will take you back faster than a mouse in space hits you.

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3 years ago

This mug is made of two layers of glass separated by empty space. It is more effective than a ceramic mug at keeping the beverag

svetlana [45]

It's D and that is what I got!

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3 years ago

Read 2 more answers

Clyde and Marilyn are riding a roller coaster. During which section of the track is their potential energy converted to kinetic

Alex17521 [72]

Potential energy is when the roller coaster rises. Kinetic energy is when the roller coaster declines.

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3 years ago

Introduces una masa de 80g en una probeta con 60cm cúbicos de agua y el nivel sube hasta 75cm cúbicos. qué densidad tiene la mas

ExtremeBDS [4]

Answer:

$d=5.33\ gr/cm^3$

Explanation:

<u>Densidad</u>

La densidad de una masa m que ocupa un volumen v se define como:

$\displaystyle d=\frac{m}{V}$

Tenemos que una masa de 80 gr hace que un volumen de agua se desplace desde 60 cm3 hasta 75 cm3, es decir, el volumen propio de la masa es m = 75 - 60 = 15 cm3.

Con esta información se calcula la densidad:

$\displaystyle d=\frac{80\ gr}{15\ cm^3}$

Operando:

$\boxed{d=5.33\ gr/cm^3}$

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3 years ago

Write a letter to a Friend congratulating her / him for her excellent result in annual examination. class 5 the​

Write a letter to a Friend congratulating her / him for her excellent result in annual examination. class 5 the