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
Viktor [21]
3 years ago
10

A plane has a takeoff speed of 89.3m/s and requires 1465m to reach that speed determine the acceleration of the plane and the ti

me required to reach this speed
Physics
1 answer:
Tems11 [23]3 years ago
4 0

Answer:

a = 2.72 ms⁻²

32.83 s

Explanation:

By using the kinematic equations you get,

v² = u² +2as and v = u + at   where all terms in usual meaning

Using 1st equation,

89.3² = 0² + 2a×1465 ⇒ a = 2.72 ms⁻²

By 2nd equation,

89.3 = 0 + 2.72×t ⇒ t = 32.83 s

You might be interested in
Two red and two overlapping balls in the center are surrounded by a green, fuzzy, circular cloud with a white line running throu
PolarNik [594]

Answer:

  • A. The line leading a bracket around the balls, labeled A, represents the nucleus of the atom.

  • B. The white line, labeled B, is signaling the first main energy level, as per the quantum model of the atom.

Explanation:

You are describing the model of an atom with two protons, two neutrons, the electron density (orbital), and two electrons.

Then, you want to know what the <em>labels A</em> and <em>B</em> represent.

The nucleus of the atom is at the center, where protons and neutrons are placed. This is supported by three models: Rutherford's model, Bohr's model, and the (currently accepted) quantum model.

Hence, the red balls and the two overlapping balls in the center are representing the protons and neutrons.

The <em>line leading a bracket around the balls</em>, labeled A, represents the nucleus of the atom, since it is signaling both protons and neutrons in the nucleus.

The green fuzzy circular cloud depicts the region where the electrons are: it is fuzzy in correspondence to the quantum model, which states the electrons are not in a fixed position but in a region around the atom. That region is named orbitals. As per the model you cannot tell the exact position of the electron, and that is what the fuzzy cloud means.

In the the Bohr's model that white line,  which should be circular, where the electrons are, depicts the orbit of the electrons, and the shell, which were idenfified with letters L, M, N, K. The first shell was the L shell.

In the quantum  model, that line corresponds to the principal quantum number n, which is the main energy level. Hence, the line leading to a bracket overlapping the white line depicts the main energy level.

The atom is neutral because it contains the same number of electrons aroud the nucleus as protons inside the nucleus.

3 0
2 years ago
Read 2 more answers
How much energy is needed to melt 5 g of ice? The specific latent heat of melting for water is 334000 J/kg.
Katen [24]

Answer:

The needed energy to melt of ice is 1670 J.

Explanation:

Given that,

Mass of ice = 5 g

Specific latent heat = 334000 J/kg

We need to calculate the energy

Using formula of energy

Q=mL

Where, m = mass

L = latent heat

Put the value into the formula

Q=5\times10^{-3}\times334000

Q=1670\ J

Hence, The needed energy to melt of ice is 1670 J.

5 0
3 years ago
Give four importantnce of recycling ​
Crank

Answer:

prevents pollution, reduces the need to harvest new raw materials, saves energy, reduce greenhouse gas

8 0
2 years ago
Read 2 more answers
Given. force of 88N and an acceleration of 4 m/s 2 what is the mass?
Allushta [10]
Mass, m=22 kg
It is given that Force, F = 88N
Acceleration, a=4 m/s 2
6 0
2 years ago
How to find direction of magnetic field.
Tju [1.3M]

unlock your third eye and youll be able to see it

6 0
2 years ago
Other questions:
  • Why do helium balloons float? Talk about density of atoms and compare to elements in the air.
    14·1 answer
  • What is the displacement of a spring if it has a spring constant of 10 N/m, and a force of 2.5 N is applied?
    6·2 answers
  • ]A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to a
    9·2 answers
  • A child in danger of drowning in a river is being carried down-stream by a current that flows uniformly with a speed of 2.20 m/s
    10·1 answer
  • 6. An object accelerates from rest to 70 m/s in 3.5 s. What is the acceleration of the object?
    7·1 answer
  • A boy is going down a slide. As he reaches the bottom, friction causes him to slow down and stop. Which one of Newton's laws is
    7·1 answer
  • Hisisisisisisiisisiis
    13·2 answers
  • Which of the following is NOT an example of a heating appliance?
    10·1 answer
  • 1.What is an object that appears fuzzy through a material that is?
    5·1 answer
  • A man walks 30 m to the west, then 5 m to the east in 45 seconds.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!