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
olchik [2.2K]
3 years ago
5

A student placed a pencil in a cup of water. The pencil appears broken because light- always travels in a straight line makes th

e water in the glass evaporate bends when it passes through water reflects the pencil on the water's surface
Physics
2 answers:
antiseptic1488 [7]3 years ago
6 0

Answer : The pencil appears broken because it bends when it passes through water.

Explanation :

When a student placed a pencil in a cup of water, the pencil appears broken. This is due to the refraction of light.

The bending of light when it moves from one medium to another is called refraction of light. When the light travels from denser to rarer medium, it gets bends away from the normal.

While when the light travels from rarer to a denser medium, it moves towards the normal.

So, the correct option is " bends when it passes through water ".

il63 [147K]3 years ago
5 0
<span>None of the choices makes a correct statement.  The third choice is close,
but misleading.

The pencil appears broken because light bends away from a straight line
when it crosses the boundary between air and water.</span>
You might be interested in
1) A satellite in orbit around Earth is in uniform circular motion. What is the angle between the velocity vector and accelerati
artcher [175]

Answer:90

Explanation: bc i looked it up

6 0
1 year ago
What is one major difference between federal and unitary governments
nikklg [1K]

Answer:

In a unit government, all the powers of government are moved around in the central government where in turn in a federal government, the powers of government are divided between the center and the units.

Explanation:

I hope this helps.

5 0
1 year ago
A 50 kg mass is placed 2 meters from the fulcrum. To balance the lever, a second object is placed 4 meters
julia-pushkina [17]

Answer:

mass =25 kg

using clockwise moment = anticlockwise moment

8 0
3 years ago
How do you know that a chemical change has happened
Elodia [21]

Answer:

theres is many states of chemical change but its not exaclty the same as physical the appearence might change alittle but chemical like frying a egg is a chemical change because a change of materials into another, new materials with different properties and one or more than one new substances are formed and the subtance changeing or the materials can show chemical changed happened you cant always see it but touching too like heat energy can show a chemical change

Explanation:

i hope this helps and keep ur grades up :)

6 0
1 year ago
Read 2 more answers
it is determined that a certain light wave has a wavelength of 3.012x10^-12 m. the light travels at 2.99x10^8 m/s. what is the f
Dahasolnce [82]

Answer:

9.93\times 10^{19}Hz

Explanation:

Speed of light is the product of its wavelength and frequency, expressed as

S=fw

Where s represent speed, f is frequency while w is wavelength

Making f the subject of the formula then

f=s/w

Substituting 2.99x10^8 m/s for s and 3.012x10^-12 m for w then

f=\frac {2.99\times 10^{8}}{3.012\times 10^{-12}}=9.926958831341\times 10^{19}\\f\approx 9.93\times 10^{19}Hz

Therefore, the frequency equals to 9.93\times 10^{19}Hz

4 0
3 years ago
Other questions:
  • A 100 watt incandescent light bulb is operated for 7 hours, and a 32 watt fluorescent light bulb is operated for the same period
    10·1 answer
  • A table of the visible light spectrum is shown below. A 2 column table with 6 rows. The first column is labeled color with entri
    5·1 answer
  • Which acceleration does the force of earth’s gravity produce?
    10·1 answer
  • There are several different models that represent compounds. One type of model is shown.
    9·2 answers
  • Average velocity is different than average speed because calculating average velocity involves ?
    6·2 answers
  • Suppose a scientist doing an experiment in nuclear fusion starts out with twelve atoms. How many atoms will most likely result f
    15·2 answers
  • Which of the following is an example of kinetic energy being converted to potential energy?
    7·2 answers
  • If a 75 W lightbulb is 15% efficient, how many joules of light energy does the bulb produce every minute?
    11·1 answer
  • As fuel is burned in an electrical generator, the chemical energy of the fuel is converted into thermal energy that is used to b
    5·1 answer
  • if two masses 5.2kg and 4.8kg are attached to ends of inextensible string passed over a friction less pulley then acceleration o
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!