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3 years ago

Imagine that you move a substance from one container to another and it's volume changes, what state of matter is that substance?

Physics

1 answer:

Verizon [17]3 years ago

6 0

This would be gas, due to it not essentially having a definite volume.

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A crate is sliding down an inclined ramp at a constant speed of 0.55 m/s. The vector sum of all the forces acting on this crate

Lemur [1.5K]

Answer:

$F_{net} = 0$

Explanation:

here it is given that the crate is sliding down with constant speed

so we will have

$v = constant$

now we can say

$a = \frac{dv}{dt}$

so here we have

a = 0

now from Newton's II law we can say that sum of all forces on the system is always product of mass and its acceleration

so here we will have

$F_{net} = ma$

$F_{net} = 0$

8 0

3 years ago

What is the medium through which sound travels inside a bird’s body? (HINT: three-letter word)

Korvikt [17]

The medium through which sound travels inside a bird’s body is the air. This is further explained below.

Generally, Air is simply defined as the invisible combination of gases, and this gas exists around the Earth.

In conclusion, Sound wave allows birds to communicate.

Read more about sound

brainly.com/question/14595927

#SPJ1

4 0

2 years ago

Which of the following should not be held constant during this experiment?

Artyom0805 [142]

The answer is c. the degree of wetness of the paper towels.

8 0

3 years ago

Read 2 more answers

A 3-kg wheel with a radius of 35 cm is spinning in the horizontal plane about a vertical axis through its center at 800 rev/s. A

Kruka [31]

Answer:

$\omega_f = 585.37 \ rev/s$

Explanation:

given,

mass of wheel(M) = 3 Kg

radius(r) = 35 cm

revolution (ω_i)= 800 rev/s

mass (m)= 1.1 Kg

I_{wheel} = Mr²

when mass attached at the edge

I' = Mr² + mr²

using conservation of angular momentum

$I \omega_i = I' \omega_f$

$(Mr^2) \times 800 = ( M r^2 + m r^2) \omega_f$

$M\times 800 = ( M + m )\omega_f$

$3\times 800 = (3+1.1)\times \omega_f$

$2400 = (4.1)\times \omega_f$

$\omega_f = 585.37 \ rev/s$

3 0

4 years ago

What are the cahnges that a force can bring out on a body ? <br><br><br>Give examples

djyliett [7]

Hi Pupil Here is your answer ::

➡➡➡➡➡➡➡➡➡➡➡➡➡

1 The shape of the Body

Example : The shape of the ball lying on a floor can be changed by pressing it.

2 Direction of the Body

Example : The direction of motion of moving ball can be changed by hitting it with a bat.

3 The speed of the Body

Example : A ball at rest can be set in motion if force is applied only

4. Size of the Body

Example : The length of a spring tied and on one end can be increased by pulling it.

⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅

Hope this helps .......

5 0

3 years ago

Read 2 more answers