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4 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! Which wave has the smallest amplitude?

Physics

1 answer:

stepladder [879]4 years ago

7 0

Answer: Option (1) is the correct answer.

Explanation:

The vertical distance between crest or trough from the origin or equilibrium point is known as amplitude of a wave.

In the given pictures, a wave that shows maximum height from the origin will have the maximum amplitude. Whereas the wave that shows minimum height from the origin will have the smallest amplitude.

Thus, we can conclude that waves shown in option 1 will have the smallest amplitude.

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If we are viewing the atom in such a way that the electron's orbit is in the plane of the paper with the electron moving clockwi

Anastaziya [24]

Answer:

The magnitude of the electric field is $5.1 \times 10^{11} \frac{N}{C}$

Explanation:

Given:

Charge of electron $q = 1.6 \times 10^{-19}$ C

Separation between two charges $r = 5.3 \times 10^{-11}$ m

For finding the magnitude of the electric field,

$E= \frac{kq}{r^{2} }$

Where $k = 9 \times 10^{9}$

$E = \frac{9 \times 10^{9} \times 1.6 \times 10^{-19} }{(5.3 \times 10^{-11} )^{2} }$

$E = 5.1 \times 10^{11}$ $\frac{N}{C}$

Therefore, the magnitude of the electric field is $5.1 \times 10^{11} \frac{N}{C}$

5 0

4 years ago

What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm?

mrs_skeptik [129]

The electrostatic force between two point charges is given by:
$F=k_e \frac{q_1 q_2}{r^2}$
where
$k_e = 8.99 \cdot 10^9 Nm^2 C^{-2}$ is the Coulomb's constant
q1 and q2 are the two charges
r is the distance between them

In our problem, charge 1 is
$q_1 = +2 \muC = +2.0 \cdot 10^{-6}C$
while charge 2 is
$q_2 = -2 \mu C=-2.0 \cdot 10^{-6} C$
and their distance is
r=5.0 cm=0.05 m

So, the electrostatic force between them is
$F=(8.99 \cdot 10^9 Nm^2C^{-2}) \frac{(+2\cdot 10^{-6}C)(-2 \cdot 10^{-6}C)}{(0.05 m)^2} =-14.4 N$

And the negative sign means the force is attractive, because the two charges have opposite sign.

7 0

3 years ago

Why does one side of the moon always face away from the earth?

Vladimir [108]

only one side of the Moon is visible from Earth because the Moon rotates on its axis at the same rate that the Moon orbits the Earth :)

5 0

4 years ago

A 70.0-kilogram man is walking at a speed if 2.0 m/s. What is the kinetic energy?

Paraphin [41]

Answer:

140 J

Explanation:

From the the question, the mass of the man =70.0 kg and the speed at which the man is walking =2.0 m/s.

$K.E = \frac{1}{2}m {v}^{2}$

where K.E = the kinetic energy, m=mass and v= speed.

By substitution,

$K.E = \frac{1}{2} \times 70 \times {2}^{2}$

$\implies \: K.E = \frac{280}{2}$

$\implies K.E =140$

Hence the kinetic energy of the man is 140J

3 0

3 years ago

A spherical wave with a wavelength of 2.0 mm is emitted from the origin. At one instant of time, the phase at rrr = 4.0 mm is πr

max2010maxim [7]

Complete Question

A spherical wave with a wavelength of 2.0 mm is emitted from the origin. At one instant of time, the phase at r_1 = 4.0 mm is π rad. At that instant, what is the phase at r_2 = 3.5 mm ? Express your answer to two significant figures and include the appropriate units.

Answer:

The phase at the second point is $\phi _2 = 1.57 \ rad$