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
Varvara68 [4.7K]
3 years ago
6

An engineer is trying to design a runway for an airport. He knows that airplanes have the ability to accelerate at 3.3 m/s ^ 2 a

nd it takes 35 seconds for an airplane to lift off the ground. If his blueprint includes a runway that is 1600 meters in length is it long enough
Mathematics
1 answer:
chubhunter [2.5K]3 years ago
7 0

Answer:

The proposed 1600 meters runway length is not long enough

Step-by-step explanation:

The given parameters are;

The amount by which a plane can accelerate = 3.3 m/s²

The time it takes for a plane to lift off the ground = 35 seconds

The length of the runway on the blueprint = 1,600 meters

Therefore, from the equation of motion for distance traveled, s, acceleration, a, and time taken, t, we have;

s = u·t + 1/2·a·t²

Where;

u = The initial velocity

t = 35 seconds

a = 3.3 m/s²

Given that all planes will start motion from rest, we have;

u = 0 m/s

Therefore;

s = 0 × 35 + 1/2 × 3.3 × 35² = 2021.25 meters

Which indicates that the length of the runway a plane would need for take off should be at least 2021.25 meters long, therefore, the blueprint's 1600 meters runway length is not long enough.

You might be interested in
Find the solutions to the system; y=x^2-3x-1 and y=8x-1
PSYCHO15rus [73]

{x}^{2}  - 3x - 1 = 8x - 1 \\  {x}^{2} - 11x = 0 \\ x(x - 11) \\ x = 0 \: or \: x = 11

When x = 0,
y = 8x - 1 \\ y = 0 - 1 \\ y =  - 1

When x = 11
y  = 8(11) - 1 \\ y = 87
x = 0, y = - 1
x = 11, y = 87

Answer is B.

Hope this helps. - M
8 0
3 years ago
An experiment consists of rolling a number cube. What is the probability of rolling two 4's in a row?
tigry1 [53]

Answer:2/12

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Spodrai ir par 4 āboliem vairāk nekā Aivaram. Cik ābolu ir Spodrai, ja kopā viņiem ir 28 āboli.
Natasha_Volkova [10]

Answer:

mans latvietis nav lielisks, bet spordai būtu 18 āboli

jūs sadalītu 28 ar 2, tad jums būtu 14 abiem, pēc tam paņemiet 4 ābolus no aivaram un atdodiet šos četrus sportaai

Step-by-step explanation:

7 0
3 years ago
What is SIN A?
Bond [772]

Answer:

\sin A =\frac{4}{5}

Step-by-step explanation:

Recall the mnemonics SOH CAH TOA.

SOH means the Sine ratio is Opposite over Hypotenuse.

This implies that;

\sin A =\frac{Opposite}{Hypotenuse}

The side opposite to angle A is 4cm and the hypotenuse is 5cm.

\therefore \sin A =\frac{4}{5}

6 0
3 years ago
As a member of a consumer group, you are interested in determining if the average number of crisps per can of Pringles is less t
Elza [17]

Answer:

Option A. The average number of crisps per can of Pringles is less than 100.

Step-by-step explanation:

We are given that the member of consumer group is wants to determine whether the average number of crisps per can of pringles is less than the average number of crisp mentioned in an advertisement whereas average number of crisp mentioned in an advertisement are 100 crisps per can. We know that the null hypothesis always contains equality and alternative hypothesis is contrary to the null hypothesis. Thus, the alternative hypothesis would be that the average number of crisps are less than 100 per can. So, the formed hypothesis are

Null hypothesis: The average number of crisps per can of Pringles is 100.

Alternative hypothesis: The average number of crisps per can of Pringles is less than 100.

6 0
3 years ago
Other questions:
  • Please help me plzzzzz
    12·1 answer
  • An adult drinks 1 cup of coffee in a day. How many fluid ounces do they drink in a week?
    13·2 answers
  • Tavia volunteered to work at the City Library for 22 days in the summer. During this time she checked out a total of 4,686 books
    7·1 answer
  • How do you graph y=-x-2?
    10·1 answer
  • Which triangle is acute?
    15·2 answers
  • Choose the best answer for the missing number.
    15·2 answers
  • ⚠️ANSWER NEEDED FAST⚠️
    10·2 answers
  • Find the remainder when f(x) = 2x3 − 12x2 + 11x + 2 is divided by x − 5.
    15·1 answer
  • If you drew the image of this figure under a 90\circ∘ clockwise rotation using center P, (0,0), what would be the coordinates of
    9·2 answers
  • F(x)=x^2-12x+20<br> a. f(0) = ?<br> b. f(2) = ?<br> c. f(x) = 0,x = ?<br> d. f(x)= 9,x = ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!