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3 years ago

How many teeth shows signs of decay?

Physics

1 answer:

Zielflug [23.3K]3 years ago

6 0

Answer:

what do you mean

Explanation:

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The end that points southward is called

Zepler [3.9K]

Answer:

Explanation: The end of the magnet that points towards the south is called the north-seeking end or the south pole of the magnet.

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2 years ago

A small 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 N/C. If th

tensa zangetsu [6.8K]

Answer:

The net charge is $67.89 \mu C$

Solution:

As per the question:

Mass of the plastic bag, m = 12.0 g = $12.0\times 10^{-3}\ kg$

Magnitude of electric field, E = $10^{3}\ N/C$

Angle made by the string, $\theta = 30^{\circ}$

Now,

To calculate the net charge, Q on the ball:

Vertical component of the tension in the string, $T = Tcos\theta$

Horizontal component of the tension in the string, $T = Tsin\theta$

Now,

Balancing the forces in the x-direction:

$Tsin\theta = QE$

$Q = {Tsin\theta}{E}$ (1)

Balancing the forces in the y-direction:

$Tcos\theta = mg$

where

g = acceleration due to gravity = $9.8\ m/s^{2}$

Thus

$T = \frac{mg}{cos\theta }$

$T = \frac{12.0\times 10^{-3}\times 9.8}{cos30^{\circ}} = 0.1357\ N$

Use T = 0.1357 N in eqn (1):

$Q = {0.1357\times sin30^{\circ}}{10^{3}} = 6.789\times 10^{- 5}\ C$

$Q = 67.89\times 10^{- 5}\ C = 67.89\mu C$

7 0

3 years ago

What does the universe look like on very large scales?

Anestetic [448]

Answer:

it looks like dots and just black space on a large scale

Explanation:

on a large scale the universe especially our milky way looks small

hope this helps

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2 years ago

The distance from the Moon to Earth is 3.9 x 10^8 meters. What is the time required for a light ray to travel from the Moon to E

kondaur [170]

Answer:

hello I don't know the answer sorry next time I will try

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2 years ago

When a car drives over a speed bump and oscillates up and down in simple harmonic motion, at which position during the motion is

Oksana_A [137]

Using the second Law of Newton, F = m * a, you know that acceleration is maximum when the force is maximum.

Using Hooke's Law, F = K Δx, you know that the force is maximum when the displacement from the equilibrium (Δx) is maximum.

So the answer is that the acceleration is maximum at the maximum amplitude x = a.

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3 years ago

How many teeth shows signs of decay?​

How many teeth shows signs of decay?