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
emmainna [20.7K]
3 years ago
13

1) A plane's velocity increases from 40 m/s to 100 m/s over a 10 second interval. What is the plane's average acceleration for t

his interval? *
​
Physics
1 answer:
Yakvenalex [24]3 years ago
8 0

Answer:

average acceleration = 6 \frac{m}{s^2}

Explanation:

Recall that the average acceleration (a)  is defined by the change in velocity from an initial velocity (v_i), to a final velocity (v_f) over the time (t) it took that change to happen. Then, in mathematical terms this is:

a=\frac{v_f-v_i}{t}

with our information this becomes:

a=\frac{v_f-v_i}{t} = \frac{100-40}{10}=6\,\frac{m}{s^2}

You might be interested in
The graph shows the solubility of several different compounds in water. According to the graph, which compound can form a satura
kumpel [21]
Answer is A. NaCIO3.
3 0
3 years ago
Examine the cross-sectional slice of a stem of a mint plant. Which statement most specifically describes mint?
Maslowich

The available options are:

Mint is a dicot.

Mint is a monocot.

Mint is an angiosperm.

Mint is a bulb plant.

Answer:

Mint is a dicot.

Explanation:

Given the fact that Mint is considered to be a member of Lamiaceae, an angiosperm plant which is characterized by typically having leaves that consist of reticulate vacation and appears like veins in structure. It also has a seed that contains two cotyledons.

Hence, it is considered a DICOT PLANT due to these characteristics. The botanical name of Mint is referred to as Mentha arvensis.

7 0
3 years ago
If the frequency of wave is 400 Hz and its
agasfer [191]

Answer:

D) 1000 m/s

Explanation:

wavelength = \frac{velocity}{frequency}

You have the wavelength and frequency, you just need to solve for velocity. You can do this by multiplying each side of the equation by frequency.

Hope this helps.

8 0
4 years ago
Why do people cry but dont say whats wrong they jus stand and act like we kno wha wrong
Finger [1]

Answer:

usually its because they dont wanna talk

Explanation:

I know what thats  like. Either that or they don't trust you. It could be something personal or they just dont wanna talk. But i wouldn't push. Just let them talk if they want to

5 0
4 years ago
A merry-go-round rotates from rest with an angular acceleration of 1.45 rad/s2. How long does it take to rotate through (a) the
elena55 [62]

Answer:

(a) t = 5.66 s

(b) t = 8 s

Explanation:

(a)

Here we will use 2nd equation of motion for angular motion:

θ = ωi t + (1/2)∝t²

where,

θ = Angular Displacement = (3.7 rev)(2π rad/1 rev) = 23.25 rad

ωi = initial angular speed = 0 rad/s

t = time = ?

∝ = angular acceleration = 1.45 rad/s²

Therefore,

23.25 rad = (0 rad/s)(t) + (1/2)(1.45 rad/s²)t²

t² = (23.25 rad)(2)/(1.45 rad/s²)

t = √(32.06 s²)

<u>t = 5.66 s</u>

<u></u>

(b)For next 3.7 rev

θ = ωi t + (1/2)∝t²

where,

θ = Angular Displacement = (3.7 rev + 3.7 rev)(2π rad/1 rev) = 46.5 rad

ωi = initial angular speed = 0 rad/s

t = time = ?

∝ = angular acceleration = 1.45 rad/s²

Therefore,

46.5 rad = (0 rad/s)(t) + (1/2)(1.45 rad/s²)t²

t² = (46.5 rad)(2)/(1.45 rad/s²)

t = √(64.13 s²)

<u>t = 8 s</u>

7 0
3 years ago
Other questions:
  • Rocky is a good salesperson and made record sales at the car lot. The manager came out to congratulate him and asked how he deve
    12·1 answer
  • In what ways has genetic engineering been used in agriculture to increase the amount of harvested food?
    11·2 answers
  • A bird sits on a high-voltage power line with its feet 3.87 cm apart. The wire is made from aluminum, is 2.11 cm in diameter, an
    8·1 answer
  • Identify the statement below that is true about a type of stress.
    8·2 answers
  • Pressure is dependent on how much force is exerted in what amount of area.<br> t or f
    6·1 answer
  • Which statement describes a climate condition?
    13·1 answer
  • PLEASE HELP!!!
    6·1 answer
  • Suppose that two objects attract each other with a gravitational force of 16 units. If the distance between the two objects is r
    8·1 answer
  • You are heating an iron to iron the shirt you're going to wear to school tomorrow. Which of the following best describes the tra
    7·1 answer
  • Jake is helping Fin push a box at a constant velocity up an incline that makes an angle of 30.0° above the horizontal by applyin
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!