All categories

4 years ago

If you can simply pour sand into a cup then why is it not a liquid?

2 answers:

7 0

If you pour sand into a cup(empty) why would it change?
If it had water in it then the sand <span>will sink to the bottom</span>, and not change forms.

sleet_krkn [62]4 years ago

6 0

If you, for example, poured it onto a wide cup with a volume equal to the total volume of the sand particles, the sand would not spread out to fill the container but would bunch up together in the middle.

You might be interested in

A 15 kg runaway grocery cart runs into a spring with spring constant 230 N/m and compresses it by 56 cm .What was the speed of t

liubo4ka [24]

To solve this problem we will apply the concepts related to the conservation of kinetic energy and elastic potential energy. Thus we will have that the kinetic energy is

$KE = \frac{1}{2} mv^2$

And the potential energy is

$PE = \frac{1}{2} kx^2$

Here,

m = mass

v = Velocity

x = Displacement

k = Spring constant

There is equilibrium, then,

KE = PE

$\frac{1}{2} mv^2 = \frac{1}{2} kx^2$

Our values are given as,

$x=0.56m\\k=230N/m\\m=15kg$

Replacing we have that

$\frac{1}{2} (15)v^2 = \frac{1}{2} (230)(0.56)^2$

$v = 2.19m/s$

Therefore the speed of the cart is 2.19m/s

3 0

4 years ago

If the fan blades rattle while the fan is turning, you can stop the noise by

victus00 [196]

A. oiling the blades

3 0

3 years ago

Read 2 more answers

Newton's first law states that objects do not change their motion unless acted upon by a net force. What does the word 'net' mea

ollegr [7]

Answer it is b is the best option to pick A, does that make sense

7 0

4 years ago

What device produces light by running an electric current through a gas

Andrej [43]

Answer:

fluorescent bulb

Explanation:

A fluorescent bulb is what produces light.

It produces light by passing electric current through a gas to

A fluorescent lamp, is a low-pressure mercury vapor and a gas-discharge lamp that uses fluorescence to produce visible light. like the ones we see. An electric current in the gas excites mercury vapor, and that produces a short wave ultraviolet light and well that causes a phosphor coating on the inside of the lamp to glow. i tried making this sound as simple as possible.

i hope this really helps you !! thanks this and mark this as brainliest !!!

4 0

3 years ago

Which object moves in simple harmonic motion?\

Rina8888 [55]

<h2>Answer:Stretched rubber band with an mass</h2>

Explanation:

Simple harmonic motion requires a restoring force.

Simple harmonic motion should be periodic.

Option A:

When a rubber band is stretched,the internal forces of the rubber band pulls the band inside.So,internal forces are the restoring forces in a rubber band.

The motion is periodic as well since the the rubber band makes to an fro motion expanding ans contracting.

So,this performs SHM.

Option B:

There is no restoring force and no periodicity.

So,this is not SHM.

Option C:

There is no restoring force and no periodicity.

So,this is not SHM.

Option D:

There is periodicity but no restoring force.

So,this is not SHM.

3 0

4 years ago