2 years ago

Give me as many as possible benefits for the neck stretch.

Physics

1 answer:

sashaice [31]2 years ago

4 0

If you have a neck cramp, so you don't hurt it when working/playing, to loosen the neck muscles

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What is the weight of 5kgs of apples on Earth?

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Answer:5kgs

Explanation:

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2 years ago

What is the pressure exerted by a column of fresh water 10m high (p=1000kg/m3 and g=10m/s)

alexira [117]

Height (h) = 10 m
Density (ρ) = 1000 Kg/m^3
Acceleration due to gravity (g) = 10 m/s^2
We know, pressure in a fluid = hρg
Therefore, the pressure exerted by a column of fresh water
= hρg
= (10 × 1000 × 10) Pa
= 100000 Pa

Answer:

100000 Pa

Hope you could understand.

If you have any query, feel free to ask.

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An electric motor draws out 5 A of current from a 20 V battery. How much power is it using?

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Answer:

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P = VI = 20(5) = 100 W

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James and Juan were at the highest point in the football stadium, dropping water balloons on people below. Many of the balloons

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2 years ago

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What is the maximum value of the magnetic field at a distance of 2.5 m from a light bulb that radiates 100 W of single-frequency

Anvisha [2.4K]

Answer:

$1.04\times 10^{-7}$ T

Explanation:

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$r$ = distance from the bulb = 2.5 m

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Intensity of the light at the location is given as

$I = \frac{P}{4\pi r^{2}}$

$I = \frac{100}{4(3.14) (2.5)^{2}}$

$I$ = 1.28 W/m²

$B_{o}$ = maximum magnetic field

Intensity is given as

$I = \frac{B_{o}^{2}c}{2\mu _{o}}$

$1.28 = \frac{B_{o}^{2}(3\times 10^{8})}{2(12.56\times 10^{-7})}$

$B_{o} = 1.04\times 10^{-7}$ T

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2 years ago