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eimsori [14]
4 years ago
13

Many scientists contributed to the current model of atoms. Which of the following offers a hypothesis on how people’s background

s and interests influence their work?
a.A person with more activities and interest is more creative and intelligent.
b.A person’s background and interests can give him a unique perspective in his research.
c.If a person has an outside influence on his work, it is more credible to the general public.
d.A person’s involvement in arts and literature will help them notice more details in their research.
Physics
1 answer:
Alex17521 [72]4 years ago
5 0

Answer:

The statement that offers a hypothesis on how people’s backgrounds and interests influence their work is that a person’s background and interests can give him a unique perspective in his research. The correct option is B.

Explanation: Alot of scientist has contributed one way or the other in the model of atoms and this was soo because of their background and interests which gave them a unique perspective in the study of the model of atoms. For example John Dalton who was known to propose the atomic theory, studied chemistry( he had a strong background in knowledge of chemistry) and he had interest in the study of the physical properties of the atmosphere and other gases. This gave him a unique perspective in his research works.

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Two forces, F? 1 and F? 2, act at a point, as shown in the picture. (Figure 1) F? 1 has a magnitude of 9.20 N and is directed at
Stolb23 [73]

Answer:

a. Fx = -8.089 N b. Fy = 3.525 N c. 8.824 N d. 336.45°

Explanation:

Since F₁ = 9.2 N and acts at 57° above the negative axis in the second quadrant, its x-component is -F₁cos57° and its y- component is F₁sin57°

Since F₁ = 5.2 N and acts at 53.7° below the negative axis in the third quadrant, its x-component is -F₂cos53.7° and its y- component is -F₂sin53.7°

Part A

What is the x component Fx of the resultant force?

The x component of the resultant force Fx = -F₁cos57° + -F₂cos53.7° = -9.2cos57° + (-5.2cos53.7°) = (-5.011 - 3.078) N = -8.089 N

Part B

What is the y component Fy of the resultant force?

The y component Fy of the resultant force = F₁sin57° + -(F₂sin53.7°) = 9.2sin57° - 5.2sin53.7° = (7.716 - 4.191) N = 3.525 N

Part C  

What is the magnitude F of the resultant force?

The magnitude F of the resultant force = √(Fx² + Fy²)

F = √(-8.089² N + 3.525² N) = √65.432 + 12.426 = √77.858 = 8.824 N

Part D

What is the angle ? that the resultant force forms with the negative x axis?

The angle the resultant force makes with the negative x axis is given by

θ = tan⁻¹(Fy/Fx) = tan⁻¹(3.525/-8.089) = tan⁻¹-0.4358 = -23.55°.

To measure it from the negative x axis, we add 360. So, our angle = 360 -23.55 = 336.45°

7 0
3 years ago
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kicyunya [14]
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13.5 A = 13.5 C per second
Charge = 13.5 C/s (10 min) ( 60 s / 1 min)
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Number of electrons = 8100 C / 1.602 x 10^(-19) C per electron
Number of electrons = 5.1 x 10^22 electrons

Therefore, there are 5.1 x10^22 electrons that assed through the heater for 10 minutes.
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Answer:

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