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
Snowcat [4.5K]
3 years ago
9

Speed, Velocity or Acceleration?

SAT
1 answer:
qaws [65]3 years ago
5 0

Answer:

Acceleration

Explanation:

Speed is how fast something moves.

Velocity is how fast it moves and in what direction it moves in.

Acceleration is the change in how fast it moves. I.e. if it speed up or slows down.

Here we are not given a speed, but are told that the subway car slows down (a negative change in speed), which is a change in speed, therefore it is acceleration (or more accurately deceleration as it is negative acceleration, slowing down, but acceleration is usually used to describe both.)

Hope this helped!

You might be interested in
The buried verb phrase conduct research on can be revised to . Overuse of intensifiers sounds unprofessional. Which one of the f
Effectus [21]

The buried verb phrase conduct research on can be revised to:

  • Evaluate

The sentence that best controls exuberance is:

  • I am certain he will like the gift

<h3>What is a Verb Phrase?</h3>

A verb phrase occurs when a verb is hidden within a noun phrase. In the noun phrase; "conduct research on," the hidden verb is "evaluate." Now, the phrase appears as a noun but actuality contains a verb.

The use of the phrase; "definitely certain" is an overuse of words. "Certain" is moderate and better.

Learn more about buried verb phrases here:

brainly.com/question/15174328

#SPJ1

5 0
2 years ago
in the airline industry, frequent-flyer programs, ticket kiosks, and e-ticketing are all examples of capabilities that are
dem82 [27]

Answer:

Valuable; rare

Explanation:

In the airline industry, frequent flyer programs, ticket kiosks, and e-ticketing are all examples of capabilities that are ___ but no longer ___.

3 0
2 years ago
How does "A Black Man Talks of Reaping" represent the way the times in which the author Arna Bontemps lived?
HACTEHA [7]
The speaker describes frustration with racial inequality
8 0
3 years ago
What happens to carbon in plants when the plants die?.
ololo11 [35]

Answer:

It get released into the atmosphere

Explanation:

8 0
2 years ago
Serum cholesterol levels of 100 hypertensive patients were recorded. Mean cholesterol level was 190 mg/d1. The data was symmetri
xxTIMURxx [149]

The standard error is 1.5.

The range of 95% confidence interval is 160 mg/dL and 220 mg/dL

<h3>What is the standard error of the distribution?</h3>

The standard error of the distribution is calculated as follows:

  • Standard error = standard deviation/√N

where N is the number of participants = 100

From the empirical rule of a normal or symmetrical distribution;

  • 68% of the data lies within one standard deviation
  • 95% percent within two standard deviations, and
  • 99.7% within three standard deviations from the mean.

Therefore,  175 mg/dl and 205 mg/dl lie one standard deviation from the mean.

One standard deviation = 175 - 190 or 205 - 190 = ±15

Standard deviation = 15

a. Solving for the standard error using the equation above;

Standard error = 15/√100

Standard error = 1.5

b. The range of 95% confidence interval is two standard deviations away from the mean.

Range of values two standard deviations from the mean = 190 - (2*15) and 190 + (2 * 15)

Range of values two standard deviations from the mean = 160 mg/dL and 220 mg/dL

Therefore, the range of 95% confidence interval is 160 mg/dL and 220 mg/dL

In conclusion, the standard error is calculated from the standard deviation and the sample size.

Learn more about standard error at: brainly.com/question/14467769

#SPJ1

6 0
1 year ago
Other questions:
  • What’s in this module contains activities that will enhance the teaching learning process among leaders about the mineral’s abou
    5·1 answer
  • Read the information. Pick 5 of the most important ideas/facts from the information and bullet point them.
    5·1 answer
  • Which statement explains something that the fossil record indicates? Earth is 4. 5 billion years old. Mammals have always existe
    12·1 answer
  • Fill in the blank with the Spanish word that best completes the following sentence. Tengo mi vestido en el _________. Ropero tec
    14·1 answer
  • Graph the image of this figure after a dilation with a scale factor of 3 centered at (−7, −6). Use the polygon tool to graph the
    7·1 answer
  • A board game that normally costs $30 is on sale for 25 percent off. What is the sale price of the game?$22. 50$27. 50$32. 50$37.
    14·1 answer
  • Wild parrots live in warm climates. Few young parrots would survive an exceptionally cold winter in these regions. If this cold
    10·1 answer
  • Infectious diseases can be classified on the basis of:
    11·1 answer
  • Coconut cupcakes without shredded coconut
    12·2 answers
  • Why is looking at cash flow an important step in a good financial plan?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!