Please help ASAP!!

Which of the following shows a red wave and a blue wave interfering
constructively to form a purple wave?

please find your answer in the attached image, than you for 48 points.

The ray in the water makes an angle of 38° with the normal, so the angle of incidence is 55°.

The angle of incidence is defined as the angle between a ray incident on a surface and the line which is perpendicular to the surface at the point of incidence called the normal. The beam can be created by any wave, such as optical, acoustic, microwave and X-ray.

Angle of incidence can be find out by Snell's Law. For the above given information,

Speed of light in water, v = [tex]2.2506 * 10^8 m/s[/tex]

Speed of light in vacuum, c=  [tex]3* 10^8 m/s[/tex]

Refractive index  (µ)= c/ v

So, Refractive index = [tex]3 * 10^8 / 2.2506* 10^8[/tex] = 1.33

Using Snell's Law,

µ of air *  sin θ =  µ of water * sin 38°

1 * sin θ = 1.33 * 0.61

sin θ = 0.811

θ = 55°

Thus, the ray in the water makes an angle of 38° with the normal, so the angle of incidence is 55°.

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Answer:

B = 0.159 T

Explanation:

Given that,

Current, I = 0.38 A

The average velocity of the electron, [tex]v=5.5\times 10^{-6}\ m/s[/tex]

The average magnetic force on the electron, [tex]F=1.4\times 10^{-25}\ N[/tex]

We need to find the flux density B of the magnetic field. We know that the magnetic force is given by :

[tex]F=qvB\\\\B=\dfrac{F}{qv}[/tex]

Put all the values,

[tex]B=\dfrac{1.4\times 10^{-25}}{1.6\times 10^{-19}\times 5.5\times 10^{-6}}\\\\B=0.159\ T[/tex]

So, the required flux density of the magnetic field is 0.159 T.

Answer:

vibrates, and they carry energy from one place to another. Look at the sound wave and the water wave. vibrating electric charges and can travel through space where matter is not present. to particle, electromagnetic waves travel by transferring energy between vibrating electric and magnetic fields.

Given :

A map shows that a star is 25 light years away.

To Find :

If you get in a ship and travel to this star at 0.95c, How far will the ship need to travel to reach this star.

Solution :

We know, 1 light year in km is given by :

[tex]1 \ light \ years = 9.46 \times 10^{12}\ km[/tex]

So, 25 light years is given by :

[tex]25 \ light \ years = 25 \times 9.46 \times 10^{12}\ km\\\\25 \ light \ years = 2.365 \times 10^{14} \ km[/tex]

Hence, this is the required solution.

Answer:

7. 5 pa

8. 5 pa

9. 5 pa

10. 75 pa

11. 25 N

Explanation:

7.

P = F/ A

= 15 / 3

= 5 pa

8.

P = F/ A

= 35 / 7

= 5 pa

9.

area of floor = l × b

= 1 × 4

= 4m^ 2

P = F / A

= 20 / 4

=5 pa

10.

area in m^2 = 400/100 = 4m^2

P = F/A

= 300 / 4

= 75 pa

11.

F = P×A

= 25×1

= 25 N

Answer:

Mandaloun won the race.

Explanation:

First, we will calculate the time taken by the Hot Rod Charlie:

[tex]s = vt\\t = \frac{s}{v}[/tex]

where,

t = time taken by Hot Rod Charlie = ?

s = distance covered = 1.25 miles

v = speed of Hot Rod Charlie = 0.79 miles/min

Therefore,

[tex]t = \frac{1.25\ miles}{0.79\ miles/min} \\t = 1.58 min[/tex]

Since Hot Rod Charlie took more time (1.58 min) than the Mandaloun (1.52 min).

Therefore Mandaloun won the race.

Answer:

"potential"

Explanation:

just completed a assignment on this hope it helped lol.

The position of a charge an electric field that gives an electric potential energy.

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

A potential energy that arises from conservative Coulomb forces and is connected to the arrangement of a specific set of point charges inside a given system is known as electric potential energy.

The position of a charge an electric field that gives an electric potential energy.

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Answer:

see explanation

Explanation:

sound travels faster in liquid than in gases because the molecules are packed closer together!

hope this helped! xoxo raina

Answer:

W = 0 J

Explanation:

The amount of work done by gas at constant pressure is given by the following formula:

[tex]W = P\Delta V[/tex]

where,

W = Work done by the gas

P = Pressure of the gas

ΔV = Change in the volume of the gas

Since the volume of the gas is constant. Therefore, there is no change in the volume of the gas:

[tex]W = P(0\ m^3)\\[/tex]

W = 0 J

Answer:

the weak nuclear force is strong than the electromagnetic force

Answer:

100 g

Explanation:

Let the mass of density 1.2 g/cm³ be x gram and let the mass of density 1.8 g/cm³ be y gram

Applying

Density (D) = mass(m)/Volume (V)

Volume (V) = mass(m)/Density(D)

V = m/D........................... Equation 1

From the question,

x+y = 400...................... Equation 1

Volume of the liquidis

V = 400/1.6 = 250 cm³

(x/1.2)+(y/1.8) = 250

(1.8x/1.2)+y = 450............... Equation 1

Solving both equation simultaneously,

Subtract equation 1 from equation 2

x-(1.8x/1.2)+(y-y) = 400-450

x-1.5x = -50

-0.5x = -50

x = -50/-0.5

x = 100 g.

Hence the mass of the liquid of density 1.2 g/cm³ is 100 g

Explanation:

A weather front is a boundary separating air masses of several characteristics eg. Air density, wind and humidity. Disturbed weather often arises from these differences

Answer:

His average speed is 45000

The correct answer is A. an increase in Earth's average surface temperature.

While all of these are aspects of global warming, option A best summarizes it.

Answer:Answer: Pressure is directly proportional to force and inversely proportional to area. Explanation: As from above it is visible that pressure is directly proportional to the force applied which means that if force increases, pressure increases. It is also inversely proportional to the area of cross-section.

Explanation: welcome

The image shown in the question is a clear depiction of a generator.

A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.

The image shown in the question is a clear depiction of a generator.

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Answer:

Explanation:

C. Generator

Answer:

A vacuum would have been created. I hope this helps have a great day

Answer:

110.23113077052545

Explanation:

Answer:

400-273

127° C

I hope it's helps you

Answer:

126.85

Explanation:

hope it helps you!!

brainliest pls

Answer:

All minerals have a definite chemical makeup. ... For example, the mineral hematite has two iron atoms for every three oxygen atoms. The mineral magnetite has three iron atoms for every four oxygen atoms. Many minerals have very complex chemical formulas that include several elements.

Explanation:

Answer:

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Answer:

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Explanation:

Answer:

A

Explanation:

Answer:

Wish I Had An Answer Try Checking On The Internet

Explanation:

Answer:

force=mass*acceleration

so consder in one second...

force=1.5kg*(changevelocity/time)

and you have the change in velocity per second.

acceleration= -20m/s^2

Explanation:

Explanation:

Given that,

Initial volume = 60dm³

Initial pressure = 30 kPa

We need to find the new volume when pressure changes to 40 kPa (say).

We know that the mathematical relation between volume and pressure is given by :

[tex]\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}[/tex]

Put all the values,

[tex]V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{30\times 60}{40}\\\\V_2=45\ dm^3[/tex]

So, when pressure of the gas increases, its volume get decreased.

Answer:

Electricity is measured in units of power called Watts,

hope this helps

have a good day :)

Explanation:

Answer: Boo

Explanation:

Answer:

r u a ghost because i want 2 b ur boo

Explanation:

Answer:

Wavelength is the distance from one wave ray to the next. They can be from trough to trough or from crest to crest.

Destructive interference occurs when the maxima of two waves are 180 degrees out of phase: a positive displacement of one wave is cancelled exactly by a negative displacement of the other wave.

Answer:

The crest of one wave overlaps the trough of another.

Answer:

The crest of one wave overlaps with the trough of another.