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
joja [24]
2 years ago
14

A jet on an aircraft carrier can be launched from rest to 40 m/s in 2 seconds. What is the acceleration of the aircraft? Show st

eps please​
Physics
1 answer:
Alex_Xolod [135]2 years ago
5 0

Answer:

a=20\ m/s^2

Explanation:

Given that,

Initial speed, u = 0

Final speed, v = 40 m/s

Time, t = 2 s

We need to find the acceleration of the aircraft. We know that, acceleration is equal to the rate of change of velocity. So,

a=\dfrac{v-u}{t}\\\\a=\dfrac{40-0}{2}\\\\=20\ m/s^2

So, the acceleration of the aircraft is 20\ m/s^2.

You might be interested in
When UV light of wavelength 248 nm is shone on aluminum metal, electrons are ejected withmaximum kinetic energy 0.92 eV. What ma
Lina20 [59]

Answer:

The maximum wavelength of light that could liberate electrons from the aluminum metal is 303.7 nm

Explanation:

Given;

wavelength of the UV light, λ = 248 nm = 248 x 10⁻⁹ m

maximum kinetic energy of the ejected electron, K.E = 0.92 eV

let the work function of the aluminum metal = Ф

Apply photoelectric equation:

E = K.E + Ф

Where;

Ф is the minimum energy needed to eject electron the aluminum metal

E is the energy of the incident light

The energy of the incident light is calculated as follows;

E = hf = h\frac{c}{\lambda} \\\\where;\\\\h \ is \ Planck's \ constant = 6.626 \times 10^{-34} \ Js\\\\c \ is \ speed \ of \ light = 3 \times 10^{8} \ m/s\\\\E = \frac{(6.626\times 10^{-34})\times (3\times 10^8)}{248\times 10^{-9}} \\\\E = 8.02 \times 10^{-19} \ J

The work function of the aluminum metal is calculated as;

Ф = E - K.E

Ф = 8.02 x 10⁻¹⁹  -  (0.92 x 1.602 x 10⁻¹⁹)

Ф =  8.02 x 10⁻¹⁹ J   -  1.474 x 10⁻¹⁹ J

Ф = 6.546 x 10⁻¹⁹ J

The maximum wavelength of light that could liberate electrons from the aluminum metal is calculated as;

\phi = hf = \frac{hc}{\lambda_{max}} \\\\\lambda_{max} = \frac{hc}{\phi} \\\\\lambda_{max} = \frac{(6.626\times 10^{-34}) \times (3 \times 10^8) }{6.546 \times 10^{-19}} \\\\\lambda_{max} = 3.037 \times 10^{-7} m\\\\\lambda_{max} = 303.7 \ nm

3 0
3 years ago
A 10.0kg of desk initial is pushed along a frictionless surface by a constant horizontal of force magnitude 12N Find the speed o
Simora [160]

kylydljty many true dvx*&;'*+$_5+

3 0
3 years ago
An ionic compound is not represented by a molecular formula because an ionic compound is
Elenna [48]

Answer:

lacks molecules

Explanation:

6 0
3 years ago
indicate whether the statement is true or false the synthesis of a large collection of information that income passes well teste
Maksim231197 [3]

Answer:  True

The statement " the synthesis of a large collection of  information that encompasses well tested and verified hypothesis about certain aspects of natural world is known as <em>"scientific theory".    </em>

It was proposed by Charles Darwin and Alfred Russel in the mid 19th century.  

Typically, it is about the relationship between various facts and is a way of providing a concise explanation for what's been observed. A scientific theory is a well- substantiated explanation of an aspect of the natural world.


4 0
3 years ago
2. Who was the first person to"measure gravity?" (Hint: By "measuring gravity, we mean
babunello [35]

Answer:

The first person to "measure gravity" is sir Issac newton

4 0
3 years ago
Other questions:
  • How much refrigerant must a system contain
    14·1 answer
  • Calculating Displacement from the Area under a Curve Try Use the graph to answer the question What is the total displacement of
    8·1 answer
  • The periodic table arranges elements by increasing _________.
    12·1 answer
  • How much energy in Joules (J) would an electric heater that draws 9.5 A when connected to a 120 V supply use if the heater were
    9·1 answer
  • I need help on this.​
    15·1 answer
  • Anna will wear a black dress when she attends her cousin’s wedding. Which color(s) does the dress absorb?
    11·2 answers
  • During combustion reactions, explain why the energy of the reactants must exceed the total energy of the products​
    6·1 answer
  • Discuss why Wolpert says we have a brain.
    7·2 answers
  • Please help
    8·1 answer
  • Why do people have symptoms in their bodys
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!