All categories

4 years ago

HELP FAST!! Which items are matter?

Physics

1 answer:

babymother [125]4 years ago

5 0

Battery

mobile phone

Explanation:

From the given options the items that are matter are the battery and mobile phone.

What is matter?

Matter is anything that has weight and occupies space.
There are three states of matter which are solid, liquid and gas
A solid is a rigid body with an ordered arrangement of atom
A liquid is matter that can flow
Gases are random molecules.

A battery and mobile phones are solids

learn more:

State of matter brainly.com/question/10972073

#learnwithBrainly

You might be interested in

What would happen to the seasons if the Earth’s tilt was only 10 degrees and why? What about 50 degrees and why?

Varvara68 [4.7K]

Answer:

If it was only 10 degrees the seasonal changes would lessen and vise versa for 50. meaning the seasonal changes would become more extreme

Explanation:

8 0

3 years ago

A stone falls from rest from the top of a cliff. A second stone is thrown downward from the same height 2.7 s later with an init

Darina [25.2K]

Answer:4.05 s

Explanation:

Given

First stone is drop from cliff and second stone is thrown with a speed of 52.92 m/s after 2.7 s

Both hit the ground at the same time

Let h be the height of cliff and it reaches after time t

$h=\frac{gt^2}{2}$

For second stone

$h=52.92\times \left ( t-2.7\right )+\frac{g\left ( t-2.7\right )^2}{2}$ ---2

Equating 1 &2 we get

$\frac{gt^2}{2}=52.92\times \left ( t-2.7\right )+\frac{g\left ( t-2.7\right )^2}{2}$

$\frac{g}{2}\left ( t-t+2.7\right )\left ( 2t-2.7\right )-\left ( t-2.7\right )52.92=0$

$13.23\times \left ( 2t-2.7\right )-\left ( t-2.7\right )52.92=0$

$26.46t-35.721-52.92t+142.884=0$

$t=4.05 s$

4 0

3 years ago

The risks and expense of manned deep-water exploration must be balanced with____________.

ehidna [41]

Answer:

The risks and expense of manned deep water exploration must be balanced with the knowledge that will be gained.

Explanation:

6 0

3 years ago

What would happen to the two balls if one of them were kept positively charged and the charge on the other ball were slowly incr

Whitepunk [10]

Answer:

The force of repulsion between the two balls will increase

Explanation:

The electrostatic force between two charged objects is given by

$F=k\frac{q_1 q_2}{r^2}$

where

k is the Coulomb's constant

q1 and q2 are the charges of the two objects

r is the distance between the centres of the two objects

We see that the magnitude of the force is directly proportional to the charges on the two objects. in this problem, we have two positively charged balls (so, there is a force of repulsion between them, since like charges repel each other and unlike charges attract each other), and the positive charge in one of them is slowly increased: this means that either $q_1$ or $q_2$ in the formula is increasing, and so the magnitude of the force is increasing.

6 0

3 years ago

What is a cation? <br>Please help me answer this question

a_sh-v [17]

Answer:

A positively charged ion

5 0

3 years ago

Read 2 more answers