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
crimeas [40]
3 years ago
8

A ray of light makes an angle of 10° with the horizontal above it and strikes a plane mirror which is inclined at an angle O to

the horizontal. The angle O for which the reflected ray becomes vertical is (a) 40°. (B)50°. (C)80°. (D) 100°
Physics
1 answer:
Serggg [28]3 years ago
7 0
180 - (40 * 2) = 100°

So the answer is (D) 100°

Hope this helps! :)
You might be interested in
What is the tube that carries air inside a lung?
Elis [28]
The trachea is a tube that carries air inside the lungs.
4 0
3 years ago
Read 2 more answers
Based on our study of electromagnets, what would be the best thing to do to a generator in order to produce more electricity?
Keith_Richards [23]

Answer:

A

Explanation:

just took a test on ed sorry if wrong I got it right

4 0
3 years ago
Read 2 more answers
the half-life of carbon-14 is 5,730 years. After 11,460 year, how much of original carbon-14 remains?
Inessa [10]

Via the half-life equation:

A_{final}=A_{initial}(\frac{1}{2})^{\frac{t}{h}}

Where the time elapse is 11,460 year and the half-life is 5,730 years.

A_{final}=A_{initial}(\frac{1}{2})^\frac{11460}{5730} \\\\A_{final}=A_{initial}\frac{1}{4} \\\\A_{final}=\frac{1}{4}A_{initial}

Therefore after 11,460 years the amount of carbon-14 is one fourth (1/4) of the original amount.

6 0
3 years ago
What happens to the position of an object as an unbalanced force acts on?
jarptica [38.1K]

Answer:

Unbalanced forces change the motion of an object. If an object is at rest and an unbalanced force pushes or pulls the object, it will move. Unbalanced forces can also change the speed or direction of an object that is already in motion.

5 0
3 years ago
Read 2 more answers
you should begin viewing a bacteria specimen with what objective lens? view available hint(s)for part g you should begin viewing
Sergio039 [100]
  • Some people view bacteria specimens with a 100x objective lens in order to see the smallest details.
  • Others may use a 10x objective lens for more general purposes, such as examining stained slides or pictures.
  • And still others may use a 40x objective lens to gain maximum resolution when viewing images of thick samples.

It is important to choose the appropriate magnification for your needs so that you can properly examine the specimen under study.

<h3>Why is the 100x objective lens necessary to see bacteria?</h3>
  • Bacteria must, of course, be viewed at the maximum magnification and resolution possible because to their small size.
  • Due to optical restrictions, this is approximately 1000x in a light microscope.
  • To improve resolution, the oil immersion method is performed. This calls for a unique 100x objective.

To learn more about bacterial specimen, visit:

brainly.com/question/1412064

#SPJ4

5 0
1 year ago
Other questions:
  • A car going 50 miles/hr accelerates to pass a truck. 5 seconds later the car is going 80 miles/hr. What is the acceleration of t
    14·1 answer
  • Which part of the iceberg displaces water equal in weight to the buoyant force
    6·2 answers
  • What is the difference between Electromagnetic Force and Electromagnetic Field?​
    15·1 answer
  • Which law states that absolute zero cannot be reached?
    11·1 answer
  • If you throw a ball into the air, Earth exerts a force on the ball. The ball in the air exerts no force on Earth. True or false?
    10·1 answer
  • A big kid pushes a little kid and the little kid falls backward. The big kid remains relatively stationary. What best explains t
    11·2 answers
  • Question 1 (1 point)
    9·1 answer
  • A rubber duck of volume 2,500cm3 floats in water with 20% of its volume submerged. You want to hold the duck under water so it i
    11·1 answer
  • A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The kinetic between the slab and slope is 0.60
    6·1 answer
  • Two objects are moving in the xy-plane. Object A has a mass of 3.2 kg and has a velocity = (2.3 m/s)i+ (4.2 m/s)j and object B h
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!