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OLEGan [10]
2 years ago
11

Which of the following has the most momentum?

Physics
1 answer:
777dan777 [17]2 years ago
5 0

Answer:

0.50 kg moving at 10 m/s

Explanation:

          mv = p

 0.50(10) = 5.0 kg•m/s

5.0(0.50) = 2.5 kg•m/s

         1(2) = 2 kg•m/s

 0.40(10) = 4.0 kg•m/s

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Which transformation of energy occurs when a fan is turned on and the blades start to rotate?
Ksju [112]

Answer:

kinetic energy

Explanation:

A wind turbine transforms the mechanical energy of wind into electrical energy. A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator

5 0
3 years ago
23) A high school website directs parents to not allow student access to blue laser pointers or allow the students to bring them
vekshin1
Mainly because of the higher energy of blue light than red light.

In fact, light is made of photons, each one carrying an energy equal to
E=hf
where h is the Planck constant while f is the frequency of the light.
The frequency of red light is approximately 450 THz, while the frequency of blue light is about 650 Hz. Higher frequency means higher energy, so blue light is more energetic than red light and therefore it can cause more damages than red light.
6 0
3 years ago
Should nuclear energy be part of sustainable energy future? explain your answer
liraira [26]

Answer:

Nuclear power is presently a sustainable energy source, but could become completely renewable if the source of uranium changed from mined ore to seawater. Since U extracted is continuously replenished through geologic processes, nuclear would become as endless as solar.

4 0
3 years ago
PLEASE help with this question!
Ainat [17]

Answer:

the answer might the number 2

Explanation:

6 0
2 years ago
Drag each tool to the correct category. Identify the common use of each tool used by space scientists and earth scientists
inysia [295]
<h3>Answer</h3>

Tools that magnify objects                   Tools that don't magnify objects

magnifying glass                                                  rule

telescope                                                            binoculars

microscope                                                    

   

<h3>Explanation</h3>

radio dish: is use to receive radio waves from the air.

binoculars: provide a magnified stereoscopic view of distant objects.

streak plate: is a technique which is used to grow bacteria on a growth media surface so that individual bacterial colonies are isolated and sampled.

wind vane: is used to determine wind direction.

ruler: is used for measuring a line.

microscope: is used to magnify the objects which are not visible by naked eyes.

magnifying glass: is used to magnifying tiny objects which are difficult to see yet they are visible.

telescope: use by space scientist to examine astronomical event that may take place in the sky which is too far.

8 0
2 years ago
Read 2 more answers
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