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
Setler [38]
2 years ago
7

If the velocity of an object changes from 15 m/s during a time interval of 4s what is the acceleration of the object

Physics
1 answer:
Fiesta28 [93]2 years ago
6 0
The acceleration of an object is defined as change in velocity divided by change in time, that is,
Acceleration = change in velocity / change in time
In the question given above, 
Change in velocity = 15
Change in time = 4
Acceleration = 15 /4 = 3.75
Therefore, acceleration = 3.8 m/s^2.
You might be interested in
Someone help im boredd
Oduvanchick [21]

Answer:

ok what is the question you need help with

Explanation:

:)

6 0
2 years ago
Read 2 more answers
What kind of charge is produced when a silk shirt is rubbed with human body<br>​
jeka94

Answer:

Frictional charges

Explanation:

6 0
3 years ago
A student witnesses a flash of lightning and then t=2.5s later the student hears assiciated clap of thunder. (please show work)
frosja888 [35]

Answer:

857.5 m

2.8583×10⁻⁶ seconds

Explanation:

Time taken by the sound of the thunder to reach the student = 2.5 s

Speed of sound in air is 343 m/s

Speed of light is 3×10⁸ m/s

Distance travelled by the sound = Time taken by the sound × Speed of sound in air

⇒Distance travelled by the sound = 2.5×343 = 857.5 m

⇒Distance travelled by the sound = 857.5 m

Time taken by light = Distance the light travelled / Speed of light

\text{Time taken by light}=\frac{857.5}{3\times 10^8}\\\Rightarrow  \text{Time taken by light}=2.8583\times 10^{-6}

Time taken by light = 2.8583×10⁻⁶ seconds

3 0
3 years ago
A sound wave was determined to have a frequency of 0.3 Hz, speed of 150 cm/s, and amplitude of 2 cm. Find its wavelength.
fredd [130]

Answer:

5 m

Explanation:

From the question,

v = λf....................... Equation 1

Where v = speed of the sound wave, λ = wavelength of the sound wave, f = frequency of the sound wave.

make λ the subject of the equation

λ = v/f..................... Equation 2

Given: v = 150 cm/s = 1.5 m/s, f = 0.3 hz.

Substitute these values into equation 2

λ = 1.5/0.3

λ = 5 m.

7 0
2 years ago
Which of the following is an electromagnetic wave characteristic which is similar to a particle
Alenkinab [10]

Answer: Photoelectric wave

Explanation: Because it represents an interaction between light and matter that describes light as an electromagnetic wave.

6 0
3 years ago
Other questions:
  • A 700kg car had 12,000 joules of kinetic energy, Calculate it’s velocity !! please help due right now !!
    10·1 answer
  • Which type of energy is commonly referred to as kinetic energy?
    7·2 answers
  • A cubical water tank with edges measuring 10 feet in length is initially full of water. If the tank were then to lose water at a
    7·1 answer
  • Four equal masses m are so small they can be treated as points, and they are equally spaced along a long, stiff wire of neglible
    11·1 answer
  • Physicists and engineers from around the world came together to build the largest accelerator in the world, the Large Hadron Col
    15·1 answer
  • A large truck collides head-on with a small compact car. During the collision: (A) the truck exerts a greater amount of force on
    9·1 answer
  • What causes diffraction that results in a fuzzy glow around a full moon?
    15·2 answers
  • The process of mitosis makes body cells which are also called_______ cells.<br> NEED DONE ASAP!!!!!
    8·2 answers
  • The idea that earth was the center of the universe is an example of ---that has been long dicarded
    6·1 answer
  • What is the SI unit for moment​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!