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3 years ago

7

In an element’s square on the periodic table, the number with the greatest numerical value represents the

2 answers:

Fantom [35]3 years ago

7 0

Answer:

Atomic mass I Just did the quiz and got 100% for edge

dmitriy555 [2]3 years ago

5 0

Answer: Atomic mass .

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The rate at which an object’s velocity changes is called its

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What factor affects a solutes solubility rather than its rate of solution

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Your bedroom has a rectangular shape and you want to measure its size. You use a tape that is precise to 0.001 m and find that t

Alex73 [517]

Your bedroom has a rectangular shape, and you want to measure its area. You use a tape that is precise to 0.001 and find that the shortest wall in the room is 3.547 long. The tape, however, is too short to measure the length of the second wall, so you use a second tape, which is longer but only precise to 0.01 . You measure the second wall to be 4.79 long. Which of the following numbers is the most precise estimate that you can obtain from your measurements for the area of your bedroom?

b)If your bedroom has a circular shape, and its diameter measured 6.32 , which of the following numbers would be the most precise value for its area?

a)30 m^2

b) 31.4 m^2

c)31.37 m^2

d)31.371 m^2

Answer:

Part A

$A = 16.99 \ m^2$

Part B

$A_r =31.37 \ m^2$

Explanation:

From the question we are told that

The shortest wall is $x = 3.547 \ m$

The length of the second wall is $y = 4.79 \ m$

Generally the area is mathematically evaluated as

$A = x * y$

=> $A = 3.547 * 4.79$

=> $A = 16.99 \ m^2$

Given that the diameter is d = 6.32

Then the area is

$A_r = \pi \frac{d^2}{4}$

$A_r =3.142 * \frac{6.32^2}{4}$

$A_r =31.37 \ m^2$

3 0

3 years ago

(ik it says physics but astronomy is a field of physics sooo) A recently discovered planet in a different solar system is locate

marusya05 [52]

The distance, to the nearest tenth, is 314.9 light-years.

<em>The given data is:</em>

A recently discovered planet is located 1.85*10^5 miles from Earth.

Now we want to transform this distance to light-years.

Remember that a light-year is defined as "the distance that the light would travel in one year".

using the relation:

distance = speed*time

The speed of light is:

speed = 6.706*10^8 mi/h

And in one year has 8760 hours, then we have:

time = 8760 h

replacing these in the equation we get:

distance = speed*time

distance = (6.706*10^8 mi/h)*(8760 h) = 5,874,456,000,000 miles

Son one light-year is equivalent to 5,874,456,000,000 miles

1 light-year = 5,874,456,000,000 miles

So to transform a distance in miles to light-years, we just need to divide that distance by 5,874,456,000,000 miles:

The distance between the new planet and Earth was:

D = 1.85*10^15 mi = ( 1.85*10^15)/(5,874,456,000,000) = 314.9 light-years.

if you want to learn more about this, you can read:

brainly.com/question/1302132

3 0

3 years ago