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Alex
2 years ago
9

Question 4 of 10 Which three components define a person's overall health? A. Mental and emotional health B. Social health C. Phy

sical health D. Public health​
Physics
1 answer:
igomit [66]2 years ago
3 0

Answer:

physical, social, and mental

Explanation:

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In the nucleus, the a)...... have b)...... charge.
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C:carry 
I hope I help
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3 years ago
A point charge of -3.0 x 10-5C is placed at the origin of coordinates. Find the electric field at the point 3. r= 50 m on the x-
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Explanation:

E=kq/r

4 0
2 years ago
A train at rest emits a sound at a frequency of 1057 Hz. An observer in a car travels away from the sound source at a speed of 2
il63 [147K]

Answer:

993.52 Hz

Explanation:

The frequency of sound emitted by the stationery train is 1057 Hz.

The car travels away from the train at 20.6 m/s.

The frequency the observer hears is given by the formula:

f_o = \frac{v - v_o}{v}f

where v = velocity of sound = 343 m/s

vo = velocity of observer

f = frequency from source

This phenomenon is known as Doppler's effect.

Therefore:

f_o = \frac{343 - 20.6}{343} * 1057\\ \\f_o = 322.4 / 343 * 1057\\\\f_o = 993.52 Hz

The frequency heard by the observer is 993.52 Hz.

4 0
3 years ago
A girl kicks a blue ball with a velocity of 20.0 m/s at 65.0o. How long is it in the air?
34kurt

Explanation:

t = usin©/g

Where t is the time to reach the maximum height

Time spent in air is T = 2t

Hence, T = 2usin©/g

T = 2 x 20 x sin 65°/ 9.8

T = 3.69s

8 0
3 years ago
At the bottom of the ocean, a rock has a mass 25 g. At sea level, the same rock will have a mass of: less than 25 g, more than 2
storchak [24]
It will be same 25 g
5 0
3 years ago
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