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
Alina [70]
3 years ago
6

The graph below shows the speed of a car as it drives along a racetrack.

Physics
1 answer:
nordsb [41]3 years ago
4 0

Answer:

Average speed = distance/time

From 1 to 9 seconds:

Distance covered = 1 - 0.2 = 0.8 km

Time = 9 - 1 = 8 sec

Average speed = 0.8 km / 8 sec

Average speed = 0.1 km/s .

The average speed for the whole test is 1.6 km / 20 sec = 0.08 km/sec. A graph of speed vs time would average out as a horizontal line at 0.08 km/sec from 1 sec to 21 sec. The area under it would be (0.08 km/s) x (20 sec) = 1.6 km.

Surprise surprise ! The area under a speed/time graph is the distance covered during that time !

In closing, I want to express my gratitude for the gracious bounty of 3 points with which I have been showered. Moreover, the green breadcrust and tepid cloudy water have also been refreshing.

Explanation:

You might be interested in
When two adjacent lights blink on and off in quick succession, we perceive a single light moving back and forth between them. th
makkiz [27]
This is called the Phi Phenomenon.
This is an illusion of movement created when two or more adjacent lights blink on and off in quick succession; when two adjacent stationary lights blink on and off in quick succession; we perceive a single light moving back and forth between them. It is an optical illusion of perceiving a series of still images, when viewed in rapid succession, as continuous motion. 
5 0
3 years ago
Which end (blue or red) of the visible spectrum has the longer wavelength? Which has the higher frequency?
Gre4nikov [31]
The red end of the visible spectrum has the longer wavelength while the blue end of the visible spectrum has the higher frequency.
8 0
3 years ago
How long does it take to fall from 5000 feet?
WINSTONCH [101]
It depends on your weight, your hieght, and how fast you are falling
4 0
3 years ago
Which of the following BEST describes the term "air resistance"?
KatRina [158]
<span>BSL Physics Glossary - air resistance - definition. Translation: Air resistance is a force that is caused by air. The force acts in the opposite direction to an object moving through the air.</span><span>
</span>
8 0
3 years ago
Read 2 more answers
A measure of the disoder of a system is called ____
musickatia [10]

Answer: Entropy is basically a thermodynamic quantity that tells the randomness of a system or as said in the question tells us a measure of the disorder of the system. The second law of thermodynamics states that a closed system has entropy which may remain constant

6 0
3 years ago
Other questions:
  • A 330 μf capacitor is connected in series with a 120 ohm resistor. what is the time constant for the circuit?
    14·1 answer
  • Any kind of wave spreads out after passing through a small enough gap in a barrier. This phenomenon is known as _________. a) di
    11·2 answers
  • What are three properties of components of the universe that can be determined using electromagnetic radiation ?
    12·1 answer
  • On Venus, the acceleration due to gravity is 8.87 m / s 2 . How far would a 17 g rock fall from rest in 6.5 s if the only force
    9·1 answer
  • Yosef is playing with different kinds of rubber bands. Some are very narrow and some are quite wide. Yosef is curious about the
    13·2 answers
  • A boulder rolls off a 100 meter cliff with a horizontal velocity of 2 m/s.
    7·1 answer
  • What is the most likely radiological device that a terrorist might use in a Weapons of Mass Destruction (WMD) incident?
    5·1 answer
  • Catching a wave, a 77-kg surfer starts with a speed of 1.3 m&gt;s, drops through a height of 1.65 m, and ends with a speed of 8.
    14·1 answer
  • Which statement about an atom is correct?(1 point)
    5·2 answers
  • An arrow is launched with an initial velocity of 7.6 m/s at an angle of 42 degrees above the horizontal. What is the horizontal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!