3 years ago

What characteristics of matter he was studying

1 answer:

5 0

Answer:

The main physical characteristics of matter are mass, volume, weight, density, odor, and color. These are the characteristics that help us to see matter, feel matter, and taste matter.

Explanation:

You might be interested in

Please help im being timed on this and need to get my grade up

nadya68 [22]

Answer:

a I think hope this helps

8 0

3 years ago

HELP MEEEEEEE!<br><br> Compare fossils x and y during tension. What happens to each?

Kruka [31]

Answer:

The layers will shift

Explanation:

7 0

3 years ago

Read 2 more answers

A machine part has the shape of a solid uniform sphere of mass 250 g and a diameter of 4.30 cm. It is spinning about a frictionl

zysi [14]

Answer: $\alpha =9.302\ rad/s^2$

Explanation:

Given

mass of sphere $m=250\ gm$

diameter of sphere $d=4.30\ cm$

radius $r=\frac{4.30}{2}\ cm$

$f=0.0200\ N$

friction will provide resisting torque so

$f\times r=I\times \alpha$

where $I=\text{moment of Inertia}$

$f=\text{friction force}$

$\alpha =\text{angular acceleration}$

$I=\frac{2}{5}mr^2$

$0.02\times r=\frac{2}{5}mr^2\times \alpha$

$\alpha =\frac{5}{2r}\times f$

$\alpha =\frac{5}{2}\times \frac{2}{4.3\times 10^{-2}}\times 0.02$

$\alpha =9.302\ rad/s^2$

(b)time taken to decrease its rotational speed by $21\ rad/s$

$t=\dfrac{\Delta \omega }{\alpha }$

$t=\dfrac{21}{9.302}$

$t=2.25\ s$

6 0

3 years ago

Imagine you live next-door to your best friend. Your bedroom windows face each other, and you want to set up a way to communica

alexdok [17]

Answer:

A morse code alphabet decoder maybe?? I am confused

Explanation:

4 0

3 years ago

Read 2 more answers

A 1.5 wire carries a 2 a current when a potential difference of 87 v is applied. What is the resistance of the wire

Dmitry_Shevchenko [17]

Ohm's law states that V = IR

87 = 2 x R

R = 87/2 ohms

Hope this helps :)

3 0

3 years ago

What characteristics of matter he was studying ​

What characteristics of matter he was studying