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3 years ago

Why is the speed of the earths plate measured in centimeter per year instead of in meter per second?

1 answer:

Nutka1998 [239]3 years ago

5 0

Just to get a more convenient number.

1 centimeter per year is the same as 0.000000000317 meter per second.

Measured in centimeters per year, you get a number that's much easier
to write down, remember, and tell other people about.

Exactly the same reason that we describe the speed of a snail in
feet per minute, not miles per hour.

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The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.55 g of conden

SSSSS [86.1K]

Answer:

m = 62.14 g

Explanation:

Energy used to melt the ice is the energy released by the condensation of the water forms on the glass

so here we have

energy for the condensation of water is given as

let mass of water condensed = m

$E = m_1 L_f$

now the energy of vaporization is given as

$E = m_2 L_v$

here we know that

$L_f = 79.8 kCal/kg$

$L_v = 580 k Cal/kg$

Now we have

$8.55 \times 580 = m \times 79.8$

$m = 62.14 g$

3 0

3 years ago

The speed at which an object falls and the acceleration at which it falls are

allochka39001 [22]

No, the speed at which an object falls is not equal to the acceleration at which it falls.

Answer:

Option B

Explanation:

Speed is defined as how fast an object can cover a specific distance and in what time it covers. So it is measured as the ratio of distance covered to the time taken to cover that distance. While acceleration is the rate of change of velocity. Moreover, speed is a scalar quantity and acceleration is a vector quantity. So most of the times, the direction will play an important role in the varying values of speed and acceleration. Also, acceleration of an object will depend upon the force and mass of the object. Thus, speed and acceleration will not attain same value always.

6 0

3 years ago

Investing in yourself and your career often requires you to “play it safe”.

SashulF [63]

i'd say false, is this for health or lifeskills?

8 0

3 years ago

Federal board paper of class 10 of physics

zzz [600]

Answer:

If you are looking for past papers you can search that up and you will find plenty of resources that will help you out.

8 0

3 years ago

Two advantages of using MCB in a house

Maslowich

Here’s 3 examples:

MCB is more sensitive to current than fuse.

In case of MCB, the faulty zone of electrical circuit can be easily identified.

With MCB it is very simple to resume to the supply.

~Emmy

6 0

3 years ago