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
nignag [31]
3 years ago
13

A car is alone at a red light. When the lights turn green, it's starts at constant acceleration after traveling 100. M, it's is

traveling at 15m/s. What is it's acceleration
Engineering
1 answer:
Leto [7]3 years ago
3 0

The acceleration of the car is 1.125 m/s².

Explanation:

Acceleration refers to the change in velocity of an object per unit time.

There are three basic formulae linking initial velocity ("u"), final velocity ("v"), distance ("s"), time ("t") and acceleration ("a"). They are-

  1. v²=u²+2as
  2. s =u*t+¹/₂(a*t²)
  3. v =u+a*t

All the variable carry the meaning as explained above using formula no 1

Since the car starts from rest (initial velocity "u"=0)

Putting "u"=0 in the formula 1

we get v²=2*a*s

Thus acceleration "a" can be written as a=v²/2s

Putting the value of "v" as 15 m/s and s= 100 m (given in the question)

a=15*15 /(2*100)

a=1.125 m/s²

Thus the acceleration of the car is 1.125 m/s²

You might be interested in
An ice hockey player is skating on an ice rink. The rink has a coefficient of kinetic friction of roughly 0.1. If the normal for
AlekseyPX

Answer:yes

Explanation:he divided by the numnebr of hockey pucks

3 0
3 years ago
Carbon monoxide coming from your car smells like
Lemur [1.5K]
I wouldn’t smell like anything carbon monoxide is an odorless gas
3 0
3 years ago
Suppose that the weights for newborn kittens are normally distributed with a mean of 125 grams and a standard deviation of 15 gr
kherson [118]

(a) If a kitten weighs 99 grams at birth, it is at 5.72 percentile of the weight distribution.

(b) For a kitten to be at 90th percentile, the minimum weight is 146.45 g.

<h3>Weight distribution of the kitten</h3>

In a normal distribution curve;

  • 2 standard deviation (2d) below the mean (M), (M - 2d) is at 2%
  • 1 standard deviation (d) below the mean (M), (M - d) is at 16 %
  • 1 standard deviation (d) above the mean (M), (M + d) is at 84%
  • 2 standard deviation (2d) above the mean (M), (M + 2d) is at 98%

M - 2d = 125 g - 2(15g) = 95 g

M - d = 125 g - 15 g = 110 g

95 g is at 2% and 110 g is at 16%

(16% - 2%) = 14%

(110 - 95) = 15 g

14% / 15g = 0.93%/g

From 95 g to 99 g:

99 g - 95 g  = 4 g

4g x 0.93%/g = 3.72%

99 g will be at:

(2% + 3.72%) = 5.72%

Thus, if a kitten weighs 99 grams at birth, it is at 5.72 percentile of the weight distribution.

<h3>Weight of the kitten in the 90th percentile</h3>

M + d = 125 + 15 = 140 g      (at 84%)

M + 2d = 125 + 2(15) = 155 g   ( at 98%)

155 g - 140 g = 15 g

14% / 15g = 0.93%/g

84% + x(0.93%/g) = 90%

84 + 0.93x = 90

0.93x = 6

x = 6.45 g

weight of a kitten in 90th percentile = 140 g + 6.45 g  = 146.45 g

Thus, for a kitten to be at 90th percentile, the approximate weight is 146.45 g

Learn more about standard deviation here: brainly.com/question/475676

#SPJ1

7 0
2 years ago
The components of your sample mixture are present in trace amounts. Assuming that you will be using GC, what kind of sample intr
Oxana [17]

Answer:

Gas Chromatography (GC or GLC) is a commonly used analytic technique in many ... for quality control as well as identification and quantitation of compounds in a mixture. ... A broad variety of samples can be analyzed as long as the compounds are ... Most analytical gas chromatographs use capillary columns, where the ...

Explanation:

5 0
3 years ago
I need help on what’s and input and output to make the flowchart
e-lub [12.9K]

Input: what is put in, taken in, or operated on by any process or system.

Output: the amount of something produced by a person, machine, or industry.

3 0
3 years ago
Other questions:
  • What is good for cleaning your vessel and does not harm lakes or rivers?
    6·1 answer
  • An oscillating mechanism has a maximum displacement of 3.2m and a frequency of 50Hz. At timet-0 the displacement is 150cm. Expre
    13·1 answer
  • For laminar flow over a flat plate, the local heat transfer coefficient hx is known to vary as x−1/2, where x is the distance fr
    12·1 answer
  • james wants to qualify for icp are and licensure. Which degree would be required in order to qualify for a two year master of ar
    15·1 answer
  • Can some one help me on this?
    7·1 answer
  • A tailgate may have a latch on both sides.<br> O True<br> O False
    10·2 answers
  • What is a combination circuit? A combination circuit:
    6·1 answer
  • A liquid mixture containing 0.45 mol fraction of heptane and 0.55 mole fraction ethyl benzene is fed as saturated vapor to a dis
    12·1 answer
  • When does the vc-turbo engine use lower compression ratios?.
    13·1 answer
  • Technician A says the compressor is the dividing line of the refrigeration system, low- to high-side. Technician B says the expa
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!