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3 years ago

What will happen to the density of an object when it's mass increases?

2 answers:

const2013 [10]3 years ago

7 0

"Increase its mass" usually means just get more of it, and its size increases too.
When that happens, the density doesn't change.

But if you have some way to increase its mass but not let it get any bigger,
then its density would increase.

An example of that might be: Take a jar or tank of air, and pump more air
into it. You added more mass of air, but the size remained the same. Then
the density of the gas in the tank increased.

ioda3 years ago

4 0

The density will decrease...its pretty logical

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Each plate of a parallel‑plate capacitor is a square of side 3.63 cm, and the plates are separated by 0.473 mm. The capacitor is

NARA [144]

Answer:

E= 55.53 x 10³ V/m

Explanation:

Given that

a= 3.63 cm

Area ,A= a²

distance ,d= 0.473 mm

Stored energy ,U = 8.49 nJ

Value of capacitor given as

$C=\dfrac{\varepsilon _oA}{d}$

By putting the values

$C=\dfrac{8.85\times 10^{-12}\times 3.63^2\times 10^{-4}}{0.473\times 10^{-3}}$

C=2.46 x 10⁻¹¹ F

$U=\dfrac{1}{2}CV^2$

V=Voltage difference

$V=\sqrt{\dfrac{2U}{C}}$

$V=\sqrt{\dfrac{2\times 8.49\times 10^{-9}}{2.46\times 10^{-11}}}$

V=26.27 V

V= E d

E=Electric filed

26.27 = E x 0.473 x 10⁻³

E= 55.53 x 10³ V/m

7 0

3 years ago

You are on a rollercoaster going around a curve. Your speed is a constant 40 miles per hour. Are you accelerating?

vodomira [7]

No, you are at a constant rate which means that you are always at 40mph

8 0

4 years ago

Calculate the kinetic energy of a motorcycle of mass 60kg travelling at a velocity of 40km/h

ELEN [110]

Answer:

1848.15J

Explanation:

KE =1/2 mv^2

Mass = 60kg, velocity =40km/h =11.11m/s

Hence

KE =30 x(11.1)^2 /2 = 1848.15J

5 0

4 years ago

A body of mass m, = 0.050 kg and initial velocity v₁ = 9 m / s turned to the right collides with a body of mass m₂ = 0.030 g wit

Ugo [173]

Answer:

Suppose two objects of different masses are moving with different velocities in the same direction on a straght-line before collision. After collision, they stick together and move with common (the same) velocity

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2 years ago

A laboratory experiment produces a single-slit diffraction pattern on a screen. If the slit is made narrower, the bright fringes

AlekseyPX

Answer:

fringes move farther

Explanation:

The relation between the distance between the fringes is given by

y = Dλ/d

where, D is the distance between the plane of slit and the screen

d is the width of slit, λ is the wavelength of light used.

As the slit made narrower, that means d decreases, the value of y increases, that means the fringes move farther.

8 0

2 years ago