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Helen [10]
3 years ago
7

The reaction between magnesium (Mg) and oxygen (O2) forms magnesium oxide (MgO).

Physics
1 answer:
Scorpion4ik [409]3 years ago
3 0

Answer:

2 Mg + O2 = 2MgO

Type: Synthesis

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Billy picks up a 40 lb. dumbbell (mass = 18.14 kg). The center of his hand, where the dumbbell is held, is 56 cm (0.56 m) from t
umka21 [38]

Answer:

<h2>Force due to biceps is given as</h2><h2>F = 1991.05 N</h2>

Explanation:

For balancing the force we know that

Torque due to weight hold on his hand = torque due to force applied by biceps

So here we will have

mg \times L = F \times d

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Plane polarized light with intensity I0 is incident on a polarizer. What angle should the principle axis make with respenct to t
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Answer:

 Q = 47.06 degrees

Explanation:

Given:

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Find:

What angle should the principle axis make with respect to the incident polarization

Solution:

- The relation of transmitted Intensity I to to the incident intensity I_o on a plane paper with its principle axis is given by:

                                     I = I_o * cos^2 (Q)

- Where Q is the angle between the Incident polarized Light and its angle with the principle axis. Hence, Using the relation given above:

                                     Q = cos ^-1 (sqrt (I / I_o))

- Plug the values in:

                                     Q = cos^-1 ( sqrt (0.464))

                                     Q = cos^-1 (0.6811754546)

                                     Q = 47.06 degrees

                                   

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Answer: I have more time to think about the wonderful things in life that we don't always appreciate.

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