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3 years ago

Explains why anyone in the classroom can hear that loud teacher across the hall even though the door is barley cracked open

2 answers:

5 0

Diffraction:
Diffraction describes how waves bend, or change direction, as they travel around the edges of obstacles. Diffraction occurs in water waves, sound waves, and light waves, but the amount of diffraction depends on the size of the obstacle or opening in relation to the wavelength of the wave.

andriy [413]3 years ago

4 0

The answer is D................

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An essential utensil for various tasks from cleaning vegatables to training pasta ir tin contents

zavuch27 [327]

Correct question: A tool used for vegetable strainer,it is essential for various tasks from cleaning vegetables to straining pasta or tin contents.

Answer: The tool is called COLANDER.

Explanation:

In the kitchen, there are different types of equipments and utensils which makes work easier and faster. Examples of such equipment/ utensils includes:

--> graters,

--> cutleries ( spoon, fork, knife)

--> colanders

--> Pots

--> Blenders

These utensils are made up of rubber, plastics, wood, ceramics and stainless steel.

A Colander is an important kitchen utensil, a type of strainer with perforated holes. The holes allows fluid to drain leaving behind the solid part. It is usually bowl - shaped. It helps in performing the following roles in the kitchen:

--> cleaning vegetables

--> straining of pasta

--> straining of tin contents

Colanders are usually made of stainless steel, plastics and ceramics.

4 0

3 years ago

Multiple Choice. For each statement, circle the correct answer.

kumpel [21]

Tataattatataaggagahahah( to answer it)

9. A
10. C

4 0

3 years ago

Explain extraction of iron from iron ore

Vsevolod [243]

Answer:

Iron is like iron man.

Iron ore is what is on caves

4 0

3 years ago

A solar flare may cause charged particles to enter the earth's atmosphere. true false

svetoff [14.1K]

Answer:

True

Explanation:

This is because the Earths ionisphere was distrubed which makes radio communications.

4 0

2 years ago

Please help me i will mark brainliest

gulaghasi [49]

Answer:

7) Example: Gravitational force

Gravitational force, also known as gravity, is a type of non- contact force.

10) Unbalanced forces can cause an object to accelerate, make a stationary object move, or cause a moving object to stop.

12) Gravitational force, Frictional force, Magnetic force

13) Friction is beneficial when we are walking as it prevents us from slipping.

For the table, find the net force first and that would help us to find the direction and the type of force (balanced/ unbalanced).

As written in Q11, add all the forces together to determine the net force acting on an object. More specifically, add the forces that act in one direction together. Then subtract the forces acting in the other direction.

Let's look at the teddy bear (Q14 -16):

Take note that we have to look at the direction of the arrow not which side the arrow is on (left/ right of the bear).

Total force acting towards the left

= 16 +7

= 23N

Total force acting on the right= 22N

Net force

= 23 -22

= 1N towards the left

Thus, 14) Unbalanced (since the net force is not 0N)

15) 1N

15) 1N16) left

Vase question:

Total downward force

= 11 +33

= 44N

Total upward force

= 25 +19

= 44N

Net force= 0N

17) Balanced

17) Balanced18) 0N

17) Balanced18) 0N19) No direction

Bicycle question:

Total force acting towards the right

= 65 +115

= 180N

Total force to the left= 170N

Net force

= 180 -170

= 10N to the right

20) Unbalanced

20) Unbalanced21) 10N

20) Unbalanced21) 10N22) To the right

4 0

3 years ago