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
bekas [8.4K]
3 years ago
5

a car starts from rest and increases its speed to 15 m/s in 20 seconds. what is the cars acceleration

Physics
2 answers:
GalinKa [24]3 years ago
7 0

Answer:

In the picture above.

Explanation:

Good luck.

Bess [88]3 years ago
5 0

The acceleration of the car is 0.75m/s²

<u>Explanation:</u>

Given:

Speed, s = 15m/s

Time, t = 20 seconds

Acceleration, a = ?

We know,

Acceleration = \frac{speed}{time}

On substituting the value, we get:

a = \frac{15}{20} \\\\a = 0.75 m/s^2

Thus, the acceleration of the car is 0.75m/s²

You might be interested in
If the wind or current is pushing your boat away from the dock as you prepare to dock, which line should you secure first?
Akimi4 [234]

Answer:

Bow Line

Explanation:

If the wind or current is pushing your boat away from the dock, bow line should be secured first.

1- We should cast off the bow and stern lines.

2-With the help of an oar or boat hook, keep the boat clear of the dock.

3-Leave the boat on its own for sometime and let the wind or current carry the boat away from the dock.

4 - As you see there is sufficient clearance, shift into forward gear and slowly leave the area.

7 0
3 years ago
If the sum of all the forces acting on a car is zero, then the speed of the car?
Taya2010 [7]

Answer: If all forces acting on a car are zero, than the cars speed is zero since there are no forces to push or pull the car :)

Explanation:

7 0
2 years ago
An ideal gas is confined within a closed cylinder at atmospheric pressure (1.013 * 105 Pa) by a piston. The piston moves until t
likoan [24]

Answer:

911700\ \text{Pa}

Explanation:

P_1 = Initial pressure = 1.013\times 10^5\ \text{Pa}

V_1 = Initial volume

V_2= Final volume = \dfrac{V_1}{9}\\\Rightarrow \dfrac{V_1}{V_2}=9

Temperature is the same in the initial and final state

From the ideal gas law we have

P_1V_1=P_2V_2\\\Rightarrow P_2=\dfrac{P_1V_1}{V_2}\\\Rightarrow P_2=P_1\times9\\\Rightarrow P_2=1.013\times 10^5\times 9\\\Rightarrow P_2=911700\ \text{Pa}

The final pressure of the system is 911700\ \text{Pa}.

5 0
3 years ago
This is a Science question pls help give 15 coins for answer
Vlad1618 [11]

Answer:

<u>Conservation</u>: using less water

<u>Xeriscaping</u>: replanting your yard with plants that do not require great amounts of water

<u>Desalination</u>: process of removing salt from water so that it can be used for consumption

<u>Water Budget</u>: finite amount of usable water available

<u>Potable</u>: water that is safe to use a drink

7 0
3 years ago
Read 2 more answers
Which one of the following acts is an example of body language?
just olya [345]
   An example of body language would be rolling your eyes. That's saying that you're bored, don't care, stop talking to other people without even opening your mouth.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is ham, I'm totally serious?
    12·2 answers
  • A special vehicle of length 50 m is designed to take passengers at extremely high speeds between different places on earth.
    14·1 answer
  • 6. If a vehicle needs 5s to complete 15m. Find the mean speed of it?
    11·1 answer
  • the amplitude of the wave is which of the following A. Resonance B. Reflection C. Energy D. Magnitude
    11·1 answer
  • Why is there no electric field at the center of a charged spherical conductor?
    7·1 answer
  • This diagram shows a process the power stars. This process is called
    10·2 answers
  • A person pulls a box across the floor with a rope. The rope makes an angle of 40 degrees tot he horizontal, and a total of 125 n
    5·1 answer
  • What is the name of the particle that compounds are made of?
    7·1 answer
  • Facts about earths rotation
    14·2 answers
  • Quations (3.4) and (3.5) are equivalent expressions for Lagrange's equations.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!