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FromTheMoon [43]
2 years ago
8

What element are the cores of massive stars made of when a supernova occurs?

Physics
1 answer:
Studentka2010 [4]2 years ago
8 0
I think its C. Oxygen 
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1A, 3B, and 7A are examples of group ___ on the periodic table.
AysviL [449]

Answer : The correct option is, Number

Explanation :

The periodic table is a type of table in which the element are systematically arranged on the basis of the atomic number.

The periodic table have the groups and periods. In the periodic table, there are 7 horizontal rows of elements are known as period and 18 vertical columns of elements are known as group.

Hence, 1A, 3B, and 7A are examples of group number on the periodic table.

7 0
3 years ago
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SECTION B<br>THEORY QUESTIONS<br>(1a) Define the following<br>(a) Work:​
Vesna [10]

Work is the amount of energy transferred

Explanation:

In physics, work is a measure of the energy transfer occurring in a process. Typically, we talk about work when energy is converted from one form into another.

For instance, work is done when a force is applied on an object. The work done on the object is given by:

W=Fd cos \theta

where

where

F is the magnitude of the force

d is the displacement

\theta is the angle between the direction of the force and of the displacement

We notice the following:

  • No work is done when the force is perpendicular to the displacement (cos 90^{\circ}=0)
  • The work is maximum when the force is parallel to the displacement

Whenever work is done, there is also an energy transfer taking place. For instance, in the previous example, when the force is applied to the object, the object will accelerate (assume there is no friction), and will gain kinetic energy: therefore, there is a transfer of energy to the object.

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

6 0
2 years ago
A device that uses electricity and magnetism to create motion is called a
Lady bird [3.3K]

Answer:

electric motors is the answer

8 0
1 year ago
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What happens if you drop a chicken wing from the top of the Eiffel Tower
horsena [70]

Answer:

It either goes WEEEEEEE. Or it just breaks apart.

Explanation:

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HELP PLEASE<br> (Look at the picture)
kotykmax [81]

Answer:

what is that?

Explanation:

i dont know what us that sorry

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2 years ago
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