1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Crank
4 years ago
6

Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30° with respect to the norm

al to the surface. What is the angle of reflection from the second surface?

Physics
1 answer:
marta [7]4 years ago
7 0

Answer:

reflected angle - secod mirror = 60°

Explanation:

I attached an image with the solution to this problem below.

In the solution the reflection law, incident angle = reflected angle, is used. Furthermore some trigonometric relation is used.

You can notice in the image that the angle of reflection in the second mirror is 60°

You might be interested in
TRUE of FALSE: The human body responds to stressors by activating the nervous
melamori03 [73]
That is false I think sorry if its not correct
8 0
3 years ago
How does pressure affect surface tension
tatyana61 [14]

the effect of pressure on surface tension can be attributed in part to absorption of gas at the surface of the liquid and in part to an intrinsic decrease in density of the liquid in the neighborhood of the surface.

In the case of liquids , Owing to contact forces between the edge of the surface and the vessel, the surface acquires a curvature, and if the liquid rises up at the edges where it meets the vessel, the pressure will be less in the liquid than in the air, for points just below and just above the surface. The vessel exerts an upward force on the liquid. This is simply a matter of looking at the directions of forces acting, knowing that the surface is under tension.

3 0
3 years ago
explain how the composition of a star that will form a billon years in the future will differ the composition of our sun.
Grace [21]

Answer:

Explanation:

Basically the star slowly burns its hydrogen into Helium. Depending on the mass, the star will have a turbulent core where the Helium will be fully mixed or a radiative core where the helium will settle at the centre (remember it's heavier than Hydrogen). The second case is what happens in the Sun.

3 0
2 years ago
Help me <img src="https://tex.z-dn.net/?f=%5Chuge%5Cmathcal%5Cred%7B%7D" id="TexFormula1" title="\huge\mathcal\red{}" alt="\huge
elixir [45]

Answer:

<em>1</em><em>)</em><em> </em><em>P</em><em>late</em><em> </em><em>tectonic</em><em> </em><em>theory</em>

<em>2</em><em>)</em><em> </em><em>Lithospheric</em>

<em>3</em><em>)</em><em> </em><em>Plates</em>

<em>4</em><em>)</em><em> </em><em>Heat</em>

<em>5</em><em>)</em><em> </em><em>Less</em><em> </em><em>dense</em>

<em>6</em><em>)</em><em> </em><em>Conventional current</em>

<em>7</em><em>)</em><em> </em><em>Magma</em>

<em>8</em><em>)</em><em> </em><em>Ocean</em><em> </em><em>crust</em>

<em>9</em><em>)</em><em> </em><em>Slowly</em>

<em>10</em><em>)</em><em> </em><em>Drifting</em><em> </em><em>away</em><em> </em>

8 0
3 years ago
A ball bounces changing velocity from vi=15m/s[D] to vf=15m/s[U] in t=0.01s. The balls acceleration is *
fomenos

Answer:

Option (A) is correct

Explanation:

a= (vf-vi)/ t

put the values

hence,

a= ( 15-15)/0.01

a=0

5 0
3 years ago
Read 2 more answers
Other questions:
  • A positive charge Q is distributed uniformly along the positive y-axis between y=0 and y=a. A negative point charge, -q, lies on
    7·1 answer
  • Is the battery sends a current of 10 A through a circuit for one hour, how many coulombs will flow through the circuit?
    10·1 answer
  • An object is accelerating at a rate of 8m/s^2 when suddenly has the net force upon increased by a factor of 2
    11·1 answer
  • In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.42 m. The mug
    8·1 answer
  • How far will a body move in 4 seconds if uniformly accelerated from rest at rate of 2m\sm\s​
    14·1 answer
  • What do scientists use observations for?
    14·1 answer
  • tourist travels 1500 miles using two planes. The second plane averages 50 miles per hour faster than the first plane. The touris
    13·1 answer
  • Two cubic meters of a gas at 303 K are heated at constant pressure until the volume is doubled. What is the final temperature of
    10·1 answer
  • URGENT!!!!!!!
    6·1 answer
  • You have a fourth rock. You drop it off the building with an initial speed of zero, but from the same height that you threw the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!