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4 years ago

A study where you try to observe subjects in a natural environment is a(n)

Physics

1 answer:

Aleksandr [31]4 years ago

6 0

Answer:

i think it Naturalistic observation

Explanation:

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A solid silver sphere of radius a = 2.5 cm has a net charge Qin = - 3.0 mC. The sphere is surrounded by a concentric copper sphe

MatroZZZ [7]

Answer:

Part a)

tex]V = -1 \times 10^8 Volts[/tex]

Part b)

$V_{inner} = V_{outer} = -1 \times 10^8 volts$

Part c)

$V = -7.30 \times 10^8 Volts$

Explanation:

Part a)

Net charge distribution on each shell is given as

On surface of radius "a"

$q_a = -3.0 mC$

on radius "b"

$q_b = 3 mC$

on radius "c"

$q_c = -1.0 mC$

Now potential at the outer shell is

$V = \frac{kq_c}{r_c}$

$V = \frac{(9\times 10^9)((-1\times 10^{-3})}{0.09}$

$V = -1 \times 10^8 Volts$

Part b)

Since copper sphere is a conducting sphere so here it will be an equi potential surface

So the potential will remain same throughout the surface of this sphere

Now we can say

$V_{inner} = V_{outer} = -1 \times 10^8 volts$

Part c)

Now electric potential at inner sphere is given as

$V = \frac{kq_a}{r_a} + \frac{kq_b}{r_b} + \frac{kq_c}{r_c}$

$V = \frac{(9\times 10^9)(-3 mC)}{0.025} + \frac{(9\times 10^9)(3 mC)}{0.06} + \frac{(9\times 10^9)(-1 mC)}{0.09}$

$V = -7.30 \times 10^8 Volts$

3 0

3 years ago

If a wave had a period of 0.077 sec, it had a frequency of ?

Likurg_2 [28]

Answer: $12.98 Hz$

Explanation:

The frequency $f$ of a wave is given by the following equation:

$f=\frac{1}{P}$

Where:

$P=0.077 s$ is the period

Hence:

$f=\frac{1}{0.077 s}$

$f=12.98 s^{-1}=12.98 Hz$

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3 years ago

What holds planets, stars, gas, and dust together in a galaxy?

notka56 [123]

Gravity holds everything in the galaxy together.

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3 years ago

What is the definition of gravitation potential energy?

ioda

Gravitational potential energy is energy an object possesses because of its position in a gravitational field. The most common use of gravitational potential energy is for an object near the surface of the Earth where the gravitational acceleration can be assumed to be constant at about 9.8 m/s2.

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3 years ago

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DENIUS [597]

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3 years ago