2 years ago

Rank the following in order of increased size? A. Proton B. Nucleus C. Electron D. Atom

Physics

1 answer:

Basile [38]2 years ago

7 0

From largest to smallest- atom, nucleus, proton and electron

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In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n

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Answer:

54 g of oxygen ...

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2 years ago

7. The S.l. unit for force is A. kg C. m/s B. m/s2 D. N

netineya [11]

D.N(Newton) this is the S.I unit for force

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Was the color orange named after the fruit or was the fruit named after the color

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The color orange is named after the fruit

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3 years ago

What is 8200 N/m2 expressed in kilopascals?

natima [27]

The S.I. unit for the measure of the pressure is the Pascal (Pa). 1 Pascal corresponds to
$1 Pa = 1 N/m^2$

We can convert the number given by the problem into Pascal:
$8200 N/m^2 = 8200 Pa$

And since $1 Pa = 10^{-3}kPa$ , we have
$8200 Pa = 8200 \cdot 10^{-3}kPa =8.2 kPa$

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2 years ago

A book sitting on a table is moved horizontally. Describe the

Akimi4 [234]

Frictional force and Applied force has same “magnitude” and “opposite” direction.

Option: B

Explanation:

When a book is moved horizontally by applying “force” on the book, the frictional force is opposed to the book by the table. Here, this “frictional force” is opposing the book has the same force what we applied on the book but this frictional force and the applied force are opposite in direction. Always the “frictional force” is opposite to the “applied force” which stops the object to move. For example, if a force applied leftward to the object the frictional force is acted on the right side of the object.

When two objects are in contact they experience a "frictional force". This "frictional force" acts opposite to the force applied on to move the object.

Formula for "frictional force" is $\mu\times N$

Where, $\mu$ is coefficient of friction and N is normal force.

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2 years ago