2 years ago

If a person tries to lift a heavy box for 5 seconds and can't make it budge,the work done on the box is less than zero

Physics

1 answer:

blondinia [14]2 years ago

3 0

Question not making a sence, Clarify what you wana ask

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There is a clever kitchen gadget for drying lettuce leaves after you wash them. It consists of a cylindrical container mounted s

lukranit [14]

Answer:

Option B

$a=19 m/s^{2}$

Explanation:

Given information

Radius of container, r=12cm=12/100=0.12m

Angular velocity= 2 rev/s, converted to rad/s we multiply by 2π

Angular velocity, $\omega=2*2\pi =12.56637061$

We know that speed, $v=r\omega$

Centripetal acceleration, $a=\frac {v^{2}}{r}$ and substituting $v=r\omega$ we obtain that

$a=r\omega^{2}$

Substituting \omega for 12.56637061 and r for 0.12

$a=0.12*(12.56637061)^{2}=18.94964045 m/s^{2}$

Rounded off, $a=19 m/s^{2}$

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3 years ago

Y’all I have best describes the purpose of a bar graph

Sholpan [36]

so you can see all the different categories at once. both as a whole and on an individual scale.

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3 years ago

Silicon (chemical symbol Si) is located in Group 14, Period 3. Which is silicon

VARVARA [1.3K]

Answer:

I dont know lol sorry ddhd

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2 years ago

A gas that is exist in outer space is made of ?

DochEvi [55]

I think the awnser is Dark Matter

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3 years ago

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What is a constellation as astronomers define it today? What does it mean when an astronomer says, “I saw a comet in Orion last

MissTica

Explanation:

Constellation: The complete sky has been divided in 88 different areas, in a way we have divided Earth in countries, not necessarily having same shapes and size. These 88 areas are known as constellations. These contains a lot of stars. When we join the brightest stars together we can imagine a shape out of them which is called as Asterism. Most of the people are unaware of this difference. Some of the famous constellations are Orion, Taurus, Gemini, Hydra, Ursa Major etc.

When an astronomer says that there is a comet is in the Orion, he means that a comet is in the boundaries of Orion constellation.

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2 years ago