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
Fittoniya [83]
3 years ago
11

Which of the following is an example of how light does NOT require a medium?

Physics
1 answer:
lord [1]3 years ago
6 0
The answer is c, Light transmits energy from one place to another.
You might be interested in
Who was the man who lived from 460B.C. 370B.C. and was among the first to suggest the idea of atoms?
Jlenok [28]
C Democritus

That's the Answer
6 0
3 years ago
Read 2 more answers
Freezing Point Depression: Can someone explain this formula to me? ΔTf = Kfcm
Leya [2.2K]
If the solution is treated as an ideal solution, the extent of freezing point depression depends only on the solute concentration that can be estimated by a simple linear relationship with the cryoscopic constant: ΔTF = KF · m · i ΔTF, the freezing point depression, is defined as TF (pure solvent) - TF (solution). KF, the cryoscopic constant, which is dependent on the properties of the solvent, not the solute. Note: When conducting experiments, a higher KF value makes it easier to observe larger drops in the freezing point. For water, KF = 1.853 K·kg/mol.[1] m is the molality (mol solute per kg of solvent) i is the van 't Hoff factor (number of solute particles per mol, e.g. i = 2 for NaCl).
8 0
3 years ago
the average speed of a runner in a 483. meter race is 3.0 meters per second. How long me runner to complete the race? Dont inclu
lara [203]

Answer:

161

Explanation:

v=\frac{d}{t} slove for t

t=\frac{d}{v}

Insert values of d and v

t=\frac{483}{3} \\

t=161

3 0
3 years ago
A car has a kinetic energy of 1.9 × 10^3 joules. If the velocity of the car is decreased by half, what is its kinetic energy?
VLD [36.1K]
The initial kinetic energy of the car is
E_1 =  \frac{1}{2}mv_1^2 =  1.9 \cdot 10^3 J

Then, the velocity of the car is decreased by half: v_2 =  \frac{v_1}{2}
so, the new kinetic energy is
E_2 =  \frac{1}{2}mv_2 ^2 =  \frac{1}{2} m ( \frac{v_1}{2} )^2= \frac{1}{2}m \frac{v_1^2}{4}= \frac{E_1}{4}
So, the new kinetic energy is 1/4 of the initial kinetic energy of the car. Numerically:
E_2 =  \frac{1.9 \cdot 10^3 J}{4}=475 J
5 0
3 years ago
The second law of thermodynamics says that whenever energy is converted from one form to another in a physical or chemical chang
coldgirl [10]
<span>As per the second law of thermodynamics, when the energy gets converted from one form to another in a physical or chemical change, then the energy which we get as result of change is of lower quality or usability of such energy is less.</span>
3 0
3 years ago
Other questions:
  • The half-life of cobalt-60 is 5.3 years. If you have a sample that contains 10.0 g of the isotope, how much will be left after 1
    6·1 answer
  • A warm-up is the exact same thing as a flexibility workout<br><br> True<br> False
    9·1 answer
  • Which biom ha hot days, cool nights, and very few plants
    14·1 answer
  • How does soil, trees, and air might result in a tradeoff
    8·1 answer
  • Find your average speed if you run 50m in 10s
    13·2 answers
  • During a home run, the batter only needs to run around all 4 bases if he wants to, since the ball cleared the outfield fence.
    6·1 answer
  • IF YOU ANSWER THESE 3 QUESTIONS! I WILL GIVE YOU BRAINEST!!! 17 POINTS!!!
    14·1 answer
  • Ce unitate de masura are indicele de REFRACTIE?
    13·1 answer
  • A lens focuses light at a single point called the focal point. An illustration of a vertical converging lens with 5 parallel ray
    11·1 answer
  • If you were standing on the edge of a thunderstorm as it begins to form, would the wind be blowing into the storm or out of it?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!