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3 years ago

13

Matter is defined as anything that has _____ and volume. atoms molecules mass energy

2 answers:

Evgen [1.6K]3 years ago

8 0

Matter is defined as anything that takes up mass and volume. The answer is A. Everything that surrounds us is matter. Living or non-living thing, it is considered as matter. Matter is composed of atoms and molecules. The chair, table, your dog even the air that we breathe, it is matter. Matter can be solid, liquid or gas.

Effectus [21]3 years ago

8 0

Matter is defined as anything that has mass and volume.

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The wire of the potentiometer has resistance 4 ohms and length 1 m. It is connected to a cell of e.m.f. 2 volts and internal res

Sever21 [200]

Answer:

Potential gradient = 1.6 v/m

E.M.F. = potential gradient × balancing length 1.2 = 1.6 × l

l=1.2\1.6

=3\4

3\4=0.75m

convert m into cm 0.75x10

0.75m=75 cm

ans=75 cm

Explanation:

5 0

4 years ago

Suppose you sound a 1056-hertz tuning fork at the same time you strike a note on the piano and hear 2 beats/second. You tighten

Sindrei [870]

Answer:

The frequency of the piano string is either 1053 HZ or 1059 HZ.

Explanation:

Here we know that frequency of beats is equal to the difference between the frequencies between two waves .

Given that frequency of tuning fork is 1056 HZ .

Let the frequency of the piano be ' f ' .

Given that number of beats = 3.

We know that | 1056 - f | = 3 ;

⇒ 1056- f = ±3,

Upon solving this we get

f = 1056-3 and 1056 + 3

⇒ f = 1053 or 1059 .

6 0

3 years ago

An airplane is flying in a horizontal circle at a speed of 480 km/h (). If its wings are tilted at angle =40° to the horizontal

german

Answer:

$R = 2162 m$

Explanation:

When wings of the airplane makes an angle of 40 degree with the horizontal so here we can say that force due to air is having two components

$F_y = mg$

$F_x = \frac{mv^2}{R}$

now we know that

$F_y = F cos40$

$F_x = F sin40$

also we know that

$v = 480 km/h$

$v = 133.3 m/s$

now plug in all data in above equations

$tan 40 = \frac{v^2}{Rg}$

$R = \frac{v^2}{g tan40}$

$R = \frac{133.3^2}{9.8 tan40}$

$R = 2162 m$

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3 years ago

What is the meaning of subsonic

Dmitry_Shevchenko [17]

noting or pertaining to a speed less than that of sound in air at the same height above sea level.

7 0

3 years ago

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Scientists use models of volcanoes to...

Nikitich [7]

Scientists use models of volcanoes to , Determine their intensity.
So the answer is B.
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8 0

3 years ago