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2 years ago

Why should people pay attention to scientists when making decisions?

Physics

1 answer:

olga nikolaevna [1]2 years ago

6 0

Answer:

D. Scientist back up their statements with facts.

Explanation:

The majority of the laws, theorems and thesis are base on with experiments. The follow different strategies for confirm the hypothesis with facts, one of the most famous models is the scientific method. That is a way of proof something in a trustworthy.

In the image is the resume about this method (graphical organizer).

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True or false The theory of plate tectonics is the study of how Earth's surface has remained the same for billions of years

sveticcg [70]

False, it is not the theory

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3 years ago

If you hold a bar magnet in each hand and bring your hands together, will the force be attractive or repulsive if the magnets ar

NemiM [27]

Answer:

Part A:

They will repel each other because same poles repel each other.

Part B)

They will attract each other because different poles attract each other..

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3 years ago

19. Find the recoil velocity of a 65 kg ice hockey goalie who

Alexxx [7]

Answer:

c. 0.12 m/s

Explanation:

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we get

$v_2=\frac{0.15\times 50}{0.15+65}=0.12$

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3 years ago

Which property of light remains unchanged when it enters a different medium?

RideAnS [48]

B. Frequency remains unchanged because the energy in a photon is E=hf. So if the frequency changes so does the energy and that doesn't happen to EM waves entering a medium by the conservation of energy

7 0

3 years ago

Read 2 more answers

How does your power output in climbing the stairs compared to the power output of a 100 watt

alexdok [17]

Answer:

1) Assuming an adult person has an average mass of m=80 kg, and assuming it takes about 30 seconds to climb 5 meters of stairs, the energy used by the person is

So the power output is

And since the estimate we made is very rough, we can say that the power output of the person is comparable to the power output of the light bulb of 100 W.

2) Based on the results we found in the previous part of the exercise, since the power output of the person is comparable to the power output of 1 light bulb of 100 W, we can say that the person could have kept burning only one 100-W light bulb during the climb.

Explanation:

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2 years ago