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Tanya [424]
3 years ago
7

A quartz crystal vibrates with a frequency of 35,621 Hz. What is the period of the crystal's motion?

Physics
1 answer:
oksano4ka [1.4K]3 years ago
4 0

Period = 1 / frequency

Period = 1 / (35,621 /s)

Period = 2.8073... x 10⁻⁵ sec

Period = <em>28.07 microseconds</em>

or

Period = <em>0.0281 millisecond</em>

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8 0
3 years ago
A circular 10-turn coil with a radius of 5.0 cm carries a current of 5 A. It lies in the xy plane in a uniform magnetic field =
Tju [1.3M]

Answer:

U = – 0.12J

Explanation:

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The sign is negative because the magnetic moment is aligned with the magnetic field.

3 0
2 years ago
To warm 2.0 l of tea (d = 1.01 g/ml; sp. heat = a cook places a 500 g block of stone at a temperature of 200f into the teapot. a
IRISSAK [1]
Volume of tea V = 2.0L = 2000 mL density d = 1.01 g/ mL mass of tea m = V * d = 2000mL * 1.01g/mL = 2020 gWhen we assume that the tea was initially at 72, the final temperature of the tea in F is 91. 
The answer in this question is B. 91
4 0
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