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
jekas [21]
2 years ago
14

You observe lighting striking and then hear to sound 8 seconds later. The speed of sound in air is 340 m/s. How

Physics
1 answer:
Leto [7]2 years ago
7 0

Answer:

2.72 Kilometers

Explanation:

8 × 340 m/s = 2720 m = 2.72 Kilometers

You might be interested in
Define chemical and physical changes. (
ZanzabumX [31]

Chemical change is two things get chemical reaction and produce a new product.

6 0
3 years ago
Read 2 more answers
A runner moves west with an initial velocity of 4 m/s. She accelerates 3 m/s2 for 30 seconds. The runner's final velocity is
Firlakuza [10]

Answer:

v = 94m/s

Explanation:

Using the first equation of motion

v = u + at

u = 4m/s , a = 3m/s² , t = 30s , v = ?

v = u + at

v = 4 + 3 × 30

v = 4 + 90

v = 94m/s

I hope this was helpful, please mark as brainliest

3 0
2 years ago
Two identical 3.0-kg cubes are placed on a horizontal surface in
DedPeter [7]

The magnitude of the force exerted by the left cube on the right cube is 17.64N.

<h3>What is frictional force?</h3>

When an object is moving on a rough surface, it experiences opposition. This opposing force is called the friction.

Two identical 3.0-kg cubes are placed on a horizontal surface in contact with one another. The cubes are lined up from left to right and a force F₁ is applied to the left side of the left cube causing both cubes to move at a constant speed v. The coefficient of kinetic friction between the cubes and the surface is 0.3.

From the equilibrium of forces in vertical direction

Normal force N= 2m x g

friction force f = μN =μ(2m)g

From the equilibrium of forces in horizontal direction

F₁ =ma =0

using Newton's third law of motion, we get

F₁  - f =0

F₁  =f = μ(2m)g

Put the values, we get

F₁  = 17.64N

Thus, magnitude of the force exerted by the left cube on the right cube is 17.64N.

Learn more about friction force.

brainly.com/question/1714663

#SPJ1

5 0
1 year ago
How do psychologist avoid false conclusion
Lubov Fominskaja [6]
A false positive<span> is a conclusion that some effect occurred when in fact it did not. hope it helped but i am not 100%

</span>
7 0
3 years ago
The effect of mechanical work on an object is _. (complete the sentence.)
Advocard [28]

Answer:

Displacement (i.e. change in its final position)

Explanation:

In classical mechanics work is described as the displacement of the body in the direction of the applied force.

<u>Mathematically given as:</u>

W=F.s\ cos\ \theta

where:

F = force on the body

s = displacement of the body

θ = angle between the force and direction of displacement

While force, acceleration, velocity can also be the answer for the blank space but the displacement effect is visible during and even after the work has been done, so one can notice the change in position of the object even when the person has not seen the process but just the initial condition of the body.

8 0
3 years ago
Other questions:
  • A police officer at rest at side of highway notices speeder moving at 62 km/h along road.when speeder passes ,officer accelerate
    14·2 answers
  • This illustration represents the compoundA)carbon oxide.B)carbon dioxide.C)carbon monoxide.EliminateD)monocarbon oxide.
    10·2 answers
  • for an object that is speeding up in the positive direction what does the displacement vs. time graph look like
    8·1 answer
  • a sound wave is determined to have a frequency of 1,000 hz and wavelength of 35cm. what is the speed of this wave?
    7·1 answer
  • All biomes don’t have the same level of biodiversity. What seems to be the optimal conditions for high biodiversity?
    12·1 answer
  • A system of satellites, base stations, and receivers is called ___________.
    10·1 answer
  • Generally, what will happen to most liquids if the temperature is increased?
    7·2 answers
  • An initially electrically neutral conducting sphere is placed on an insulating stand. A negatively-charged glass rod is brought
    9·1 answer
  • Sometimes in the winter, ice crystals grow directly from the moisture in the air. As the water changes from a gas to a solid, th
    9·1 answer
  • Today, you will use the Magnetic Fields Simulation to collect more reliable data about the two
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!