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IgorLugansk [536]
3 years ago
5

Which was more difficult to determine (latitude or longitude) and why?

Physics
1 answer:
Ivenika [448]3 years ago
7 0
Longitude was. Determining longitude requires knowing the exact time of day, which was difficult prior to modern clocks. The source book below tells the story of Englishman John Harrison's life-long pursuit of building a reliable clock and its importance to navigation.
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A round loop of wire carries a current of 100 A, has a radius of 10 cm, and its normal (vector) makes an angle of 30∘ with a mag
Oliga [24]

Answer:

0.823 Nm

Explanation:

current, i = 100 A

radius, r = 10 cm

Angle between the normal and the magnetic field, θ = 30°

Magnetic field, B = 0.524 T

Torque is defined as the

\tau = i \times A\ B\times sin\theta

\tau = 100 \times 3.14\times 0.1\times 0.1\ 0.524\times 0.5

Torque = 0.823 Nm

Thus, the torque is 0.823 Nm.

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3 years ago
There are many risks associated with nuclear power. Which is NOT a risk associated with nuclear power?
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Which of the following is a good conductor of heat? 1. water 2. glass 3. wood 4. mercury​
trapecia [35]

Answer:

So the answer would be water based on the evidence shown below.

Explanation:

Mercury is a poor conductor of heat but good for electricity, water is a good conductor of heat but a poor conductor of electricity, wood is a poor conductor of heat and electricity, and glass is probably the worst conductor of heat.

7 0
3 years ago
What’s the difference between atoms and molecules in a substance?
Goryan [66]

Answer:

Atoms are single neutral particles.

example: Ne, O

Molecules are neutral particles made of two or more atoms bonded together.

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5 0
3 years ago
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Why is an element considered a pure substance?
anastassius [24]

Answer:

An element is a pure substance and is made of only one type of atom.

Explanation:

It cannot be broken down into a simpler substance.

3 0
2 years ago
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