Physics High School

How to do this question plz ​

How To Do This Question Plz

Answers

Answer 1

Answer:

  C

Explanation:

Most discussions of refraction will have a diagram similar to that of C.

The angle of incidence is measured from the normal to the boundary, as is the angle of refraction. The product of the sine of the angle and the index of refraction is the same for the media on either side of the boundary.

  n₁·sin(θ₁) = n₂·sin(θ₂)

For media, such as optical fiber, that has an index of refraction greater than 1, the angle of refraction will be smaller in that media than the angle of incidence coming from air.

Figure C applies.

Related Questions

Use what you know about mass and how you use it to calculate force in the following situation. If each washer has a mass of 4. 9 g, then the mass of two washers in kilograms would be. Given that F = ma, and if 4 washers are attached to the string and car instead of 2, then the applied force on the car will be. Recall a = 10 m/s2.

Answers

Considering the change of units and the definition of weight, the mass of two washers would be 0.0098 kg and if 4 washers are attached to the string, then the applied force on the car will be 0.196 N.

Mass of two washers

If each washer has a mass of 4.9 g, then the mass of two washers will be calculated simply by multiplying the mass of 1 washer by the amount you have of them, in this case 2:

4.9 g×2= 9.8 g

Being 1 kg = 1000 g, you apply the following rule of three to make the change of units: if 1000 g equals 1 kg, 9.8 g equals how many kilograms?

[tex]mass=\frac{9.8 gramsx1 kg}{1000g}[/tex]

Solving:

mass= 0.0098 kg

Finally, the mass of two washers would be 0.0098 kg.

Applied force

On the other side, mass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body.

The mass of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

Weight is calculated as the product of the object's mass and the value of the gravitational acceleration:

W= m×g

In this case, you know:  

m= 4.9 g×4= 19.6 g= 0.0196 kg → the mass of 4 washers in kilogramsg= 10 m/s²

Replacing:

W= 0.0196 kg× 10 m/s²

Solving:

W= 0.196 N

Finally, if 4 washers are attached to the string, then the applied force on the car will be 0.196 N.

Learn more:

brainly.com/question/15566515?referrer=searchResults brainly.com/question/15271930?referrer=searchResults brainly.com/question/4735812?referrer=searchResults

Answer:

C, B

Explanation:

Which statement explains the first law of thermodynamics?.

Answers

Energy is transformed and transferred in a thermodynamic system. Option B is correct

First law of thermodynamics:

It states the energy neither be created nor destroyed. It change its form from one to another. It is also known as law of conservation of energy.

It is given by the formula,

[tex]\Delta U = Q - W[/tex]

Where,

[tex]\Delta U[/tex] - change in internal energy

[tex]Q[/tex] -    heat added

[tex]W[/tex]-    work done by the system

Since, heat is a form of energy, hence it is follow the principle of conservation of energy.

Therefore, energy is transformed and transferred in a thermodynamic system. Option B is correct

To know more about First law of thermodynamics:

https://brainly.com/question/7107028

Answer:

2: A,D,E or 1,4,5

3: B

4: B

5: 12 joules

6: 53 joules

7: B,C,E or 2,3,5

8: 2,4,3,1

9: Electrical energy in the stove is transformed into heat. The heat flows to the water in the kettle, increasing the internal energy of the water. As the energy in the water increases, the water molecules move faster until the liquid water becomes water vapor. The water vapor does work on the whistle, causing it to make a sound. Energy is neither created nor destroyed, it has simply changed form in the process.

Explanation:

youre welcome

What is the speed of sound through air?
200 meters per second
335 meters per second
400 meters per second
600 meters per second

Answers

331.29 metres (1,086.9 feet) per

1. The law of reflection states that the angle of _______ is equal to the angle ofreflection

•refraction
•incidence

Answers

Answer:

refraction

Explanation:

but this is easy so why

when plate movement rocks to break its called

Answers

It is called a fault

please help me please please, i will brainliest the right answer

Answers

help with whatttt? there’s nothing

the acceleration of a train moving from rest and its speed reaches 36m/sec in 9 sec​

Answers

Answer:

4 m/s^2

Explanation:

The acceleration is defined as: Δv/Δt (the difference of the velocity over a time period in which happens that difference).

Remember that a difference is calculated by subtracting the initial value of a physical quantity from its final value.

In our case:

Δv = Vfinal - Vinitial = 36m/s - 0 m/s = 36m/s

Δt = 9s

a = Δv/Δt = 36m/s / 9s = 4m/s^2

You slide towards the window when a car makes a sudden turn

Answers

Answer:

thats ummm

Explanation:

law of inertia

Newton’s 1 law

As a satellite is accelerated away from the Earth by a rocket, the satellite's mass ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
increases
remains the same
decreases

Answers

The mass of the satellite will remain the same when it is accelerated away from the Earth.

The mass of an object is a scalar quantity. This implies that mass of an object can be completely described with magnitude only.

The mass of every object in the universe is independent of the gravity and will always maintain the same value from place to place.

Thus, we can conclude that, the mass of the satellite will remain the same when it is accelerated away from the Earth.

Learn more about mass and scalar quantities here: https://brainly.com/question/21925479

The Sun has a mass of 1.99 x 10^30kg [^30 is an exponent] and is 1.5 x 10^11m [^11 is an exponent] from the earth. The planet Earth is 5.98 x 10^24kg [^24 is an exponent]. What is the gravitational attraction between the sun and the earth? G=6.67×10^-11 (-11 is an exponent)​

Answers

Answer:

F = G M m / R^2 = 6.67E-11 * 1.99E30 * 5.98E24 / (1.5E11)^2

F = 6.67 * 1.99 * 5.98 / 2.25 E21 Newtons

F = 3.53E22 N

What is the anomalous expansivity of water

Answers

Answer:

The anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4o C to 0o C, and it becomes less dense. The density is maximum at 4 degree centigrade and decreases below that temperature as shown in graph.

Explanation:do you want me to explain it more??

is atmosphere pressure at high altitudes is less than the pressure at ground, true or false​

Answers

Answer:

The answer is true I guess!!!

This is because the more you go up to less air it is and the pressure also gets less!!!!!!!!

Explanation:

I HOPE THAT I WAS HELPFUL TO YOU!

Other Questions
Mary had 60$ and spent 3/4 on a coat. plus she brought a skirt with 1/2 she had left . how much do she have left? If an input force of 202N is applied to the handles of the wheelbarrow in the sample problem how large is the output force that just lifts the load? a joker cap is in the form of a right circular cone of base radius 10.5cm and height 36cm. find the area of sheet to make 20 such caps....?plz answer this Which of the following have a sum of 0? (Pick 2) *1:The football team gained 10 yards on the first play, gained 10 yards on the second play, and lost 10 yards on the third play. What was the overall change in yardage?2: While playing the integer game, Sam pulled the following cards: 8, 4, 5, -6, -8, -3. What is the sum of Sam's hand?3: -15 - 8 + 12 + 114: 6 + (-5) - 7 + (-4) + (-4) You can protect yourself from identity theft by using ____ when transmitting information over network connections. a. cookies b. port-scanning c. biometrics d. encryption Why doesnt people like me? help me please and thanks Plsssssssssss helppppppp d.One rectangle weighs what someone solve asap whats the answer for this Las Funciones de los cuerpos animalesProyecto en equipo. 20 puntosNombre del animal:Familia:_(Reptil/Carnivoro/Erbivoro)Donde viven:Ciclo de la vida delanimal:Tamano:Colores:Caracteristicasnicas:Supervivencia/ Quecomen:Que aparatos / sistemas usan: (Eje Aparato respiratorio, sistema nerviosos) Puedes usartus notas para contestar esta preguntaDatos extra INTERESANTES sobre este animalAprendiste algonuevo?DIBUJA: Recuerda que tienes que hacer un diagrama en donde muestres el ciclo delanimal que hayan escogido en grupo. A quadrilateral has two angles that measure 200 and 30. The other two angles are in aratio of 6:7. What are the measures of those two angles? What is the perimeter?6 yards8 yards4 yards Pastor Joe sneaked into the office. He had to get his hands on the money that was collected to fix the church roof. He needed to increase his bank accounts by the hook or by the crook. ____________ *1 point(a) Alliteration(b) irony(c) personification(d) irony 20 points if you answer Which of the following is true of judges and justices in the federal court system?a) They are part of a seniority system that gradually moves them toward the Supreme Court.b)They are elected by the people every ten years.c)They are appointed by the president with the advice and consent of the House of Representatives.d)They are appointed by the president with the advice and consent of both houses of Congress.e)They are appointed by the president with the advice and consent of the Senate. explain the significant of bonds in the 1760 and 1790 if I was 14 in 1947 then how old am I? In a proportional representation electoral system? What is the greatest common factor of 31 and 45?