PHYSICS MIDDLE SCHOOL

Unlike metals, many nonmetals are.......a. good conductors of heat and electricity.

b. malleable and ductile.

c. gases at room temperature.

d. shiny.

Answers

Answer 1
Answer:

Unlike metals, many non-metals are malleable and ductile. Thus, the correct option is B.

What are non-metals?

Non-metals are those metals which lack all the metallic attributes which are found in metallic elements. The non-metals are good insulators of heat and electricity. They are mostly gases and sometimes also liquid. Some of the elements then are even solid at room temperature include Carbon, sulphur and phosphorus.

A malleable material is the material in which a thin sheet can be easily formed through hammering. Gold is the most malleable metal found in nature. In contrast, ductility can be defined as the ability of a solid material to deform under the tensile stress.

Therefore, the correct option is B.

Learn more about Non-metals here:

brainly.com/question/30458857

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Answer 2
Answer: The correct is b: malleable and ductile.

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On a temperature versus time graph, how does the temperature at the beginning of a change of state compare with the temperature at the end of the change?always lower

always the same

usually lower

usually higher

Answers

Answer:

The temperature is always same.

Explanation:

The change of state of matter occurs at the constant temperature, because the heat energy given to the matter is used to change the state in this condition.

So, in the beginning and at the end of the change, the temperature remains constant.

The graph between temperature and time is a straight line parallel to time axis as shown.

Answer:

answer is B

Explanation:

How can you make gravity smaller and bigger

Answers

The force of gravity = GMm / r^2, where G is gravitational constant, M is mass of one object, m is mass of another object, r is distance between them.

To make gravity smaller, decrease mass or increase distance.
To make gravity bigger, increase mass or decrease distance.

You can increase the forces of gravity between you and,
let's say, a planet, in two ways.

Way #1:
Increase your mass. 
(Eat or drink more.
Fill your pockets with rocks.
Put on a heavy coat or space suit.)

Way #2:
Get closer to the center of the planet.
(That only works down to the planet's surface, but
it stops working if you go below the surface.)

To decrease the forces of gravity, do exactly the opposite:
-- lose weight
-- get farther away from the object that gravity is attracting you to .

Also, don't forget: 
The forces of gravity always work both ways. 
The less the planet pulls on you, the less you pull on the planet.
The harder the planet pulls on you, the harder you pull on the planet.

what is another name for the cluster of the cells that attach the walls of the uterus fertilization?.......and......how does the mother provide the developing fetus with food and oxygen?......plzzz help

Answers

In a nutshell...
The cluster of cell is the Blastocyst and it consist of cells that will grow to form the chorion and the allantois (which will all merge for the most part to form allantachorion) , the yolk  as well as the amnion and a set of special cells known as the inner mass of cells.  The Blastocyst once it attaches to the Linning of the Endometrium in the Uterus will see where placental material start to generate and it is the placenta which contain the maternal and fetal blood as well as the facilitator for the umbilical chord which all work in tandem  to provide the fetus with oxygen and nutrients.

A Walkman uses a standard 1.5 volt battery. How much resistance is in the circuit if it uses a current of 0.01 A

Answers

Using the ohm's law: v=IR

1.5=0.01R

R=150 ohm

First to answer will be the brainliest i need the answer ASAP

Answers

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Please! Explain a connection with a molecule and matter.

Answers

An atom is the basic unit of a chemical element while a molecule is an electrically neutral group of two or more atoms held together by chemical bonds. I guess its connected because in a molecule, its two or more atoms because of the bond.
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