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
Agata [3.3K]
3 years ago
9

How many nanoseconds does it take light to travel 1.00 ft in vacuum? (This result is a useful quantity to remember.)

Physics
1 answer:
Svetach [21]3 years ago
4 0

To solve this problem, we will define speed as the amount of distance traveled per unit of time. We will clear the value of time and in parallel we will convert the Units to an international system to facilitate the calculation since we know the speed of light in a vacuum. The speed defined in terms of distance and time would be

v = \frac{x}{t} \rightarrow t = \frac{d}{v}

The speed of light in a vacuum is  3 * 10 ^ 8m / s and 1ft is equivalent to 0.3048m, so the estimated time would be

t = \frac{d}{v}

t = \frac{0.3048m}{3*10^8m/s}

t = 1.02*10^{-9}s

We know that 1 second is equivalent to 10 ^ 9ns, therefore

t =  1.02*10^{-9}s (\frac{10^9ns}{1s})

t = 1.02ns

Therefore the time is 1.02ns

You might be interested in
I need help plz and thank you❤
anzhelika [568]
I think:
In motion- 40
Not moving- 20
6 0
3 years ago
A. Write two or three sentences to describe the conductivity of an insulator. Explain its conductivity in terms of the electrons
aliya0001 [1]

PART A)

Conductivity of insulator is very small as there is no free electrons to conduct the current trough that medium

So here number of conduction electrons are very less in insulators

PART B)

Resistance is the property of a conducting medium which will oppose the flow of current trough it

Resistance of wire directly depends on its length so resistance of long wire will be more than the resistance of short wire

Resistance inversely depends on the area so if a wire has more crossectional area then its resistance must be small

PART C)

power of light bulb is defined as rate of electrical energy

it is given by formula

P = i V

here we know that

i = 1.46 A

V = 120 volts

so power is given as

P = 1.46 \times 120

P = 175.2 Watt

3 0
3 years ago
Read 2 more answers
During a particular time interval, the displacement of an object is equal to zero. Must the distance traveled by this object als
Gnom [1K]

Answer: No, we can have a displacement equal to 0 while the distance traveled is different than zero.

Explanation:

Ok, let's write the definitions:

Displacement: The displacement is equal to the difference between the final position and the initial position.

Distance traveled: Total distance that you moved.

So, for example, if at t = 0s, you are in your house, then you go to the store, and then you return to your house, we have:

The displacement is equal to zero, because the initial position is your house and the final position is also your house, so the displacement is zero.

But the distance traveled is not zero, because you went from you traveled the distance from your house to the store two times.

So no, we can have a displacement equal to zero, but a distance traveled different than zero.

3 0
3 years ago
A driver's foot presses with a steady force of 20N on a pedal in a car as shown.
azamat

Answer:

160N

Explanation:

Moments must be conserved - so.

20 * 0.4 = F * 0.05

F=\frac{20*0.4}{0.05} = 160

6 0
3 years ago
Which type of energy is stored in chemical compounds and released in chemical reactions?
astraxan [27]

Answer:

potential

Explanation:

4 0
3 years ago
Other questions:
  • The tidal bulge on the side of the earth opposite the moon is due to _______ .
    13·2 answers
  • A locomotive moved 18.0 m [W] in a time of 6.00 s and stopped. After stopping, the locomotive moved 12.0 m [E] in 10.0 s. a. Det
    13·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST!
    5·1 answer
  • You and a friend each drive 58 km. You travel at 89. km/h, your friend at 94 km/h. How long will your friend wait for you at the
    9·1 answer
  • Why does a solid keep its shape
    5·1 answer
  • What are the units of measure used to calculate the acceleration?
    5·2 answers
  • 40 POINTS!!! + BRAINLIEST!!!
    11·1 answer
  • A gas occupies 0.60 m3 at a 5.0 atm. If the temperature of the gas remains the same and the pressure decreases to 2.5 atm, what
    12·1 answer
  • A jogger runs 5.0 km on a straight trail at an angle of 60° south of west. What is the southern component of the run rounded to
    6·1 answer
  • Does the response of the light bulb depend on how fast you move the bar magnet? if so, how?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!