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
Nataliya [291]
3 years ago
7

Children are ready for more complex storybooks:

Physics
1 answer:
FromTheMoon [43]3 years ago
5 0

Answer:

4

Explanation:

Because that is when they're mind learns how to read

You might be interested in
How does a wind turbine transform mechanical energy into electrical energy?
Alex777 [14]

Answer:

"A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator."

4 0
3 years ago
What is the resolution of an analog-to-digital converter with a word length of 12 bits and an analogue signal input range of 100
Elena L [17]

Answer:

The resolution of an analog-to-digital converter is 24.41 mV

Explanation:

Resolution of an analog-to-digital  = (analogue signal input range)/2ⁿ

where;

n is the number or length of bit, and in this question it is given as 12

Also, the analogue signal input range is 100V

Resolution of an analog-to-digital  = 100V/2¹²

2¹² = 4096

Resolution of an analog-to-digital  = 100V/4096

Resolution of an analog-to-digital  = 0.02441 V = 24.41 mV

Therefore, the resolution of an analog-to-digital converter is 24.41 mV

5 0
3 years ago
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground. What was the kinetic energy of the roc
Ahat [919]
2,450 Joules,  kinetic energy is 1/2 mass x velocity squared.
3 0
3 years ago
Who does more work - a man who lifts a large box from the ground up into the back of a truck, or a man who puts the same box on
Viefleur [7K]
Answer :
The man who uses the trolley
4 0
3 years ago
(a) As a soap bubble thins it becomes dark, because the path length difference becomes small compared with the wavelength of lig
OLga [1]

Answer:

t< 75 nm

Explanation:

A soap bubble is a thin film where when the beam enters the film it has a 180º phase change due to the refractive index and the wavelength changes between

              λ = λ₀ / n

In the case of constructive interference in the curve of the spherical film it is

              2 nt = (m + ½) λ₀

Where t is the thickness of the film and n the refractive index that does not indicate that we use that of water n = 1.33, m is an integer. The thickness of the film for the first interference (m = 0) is

              t = λ₀ / 4 n

A thickness less than this gives destructive interference.

Let's look for the thickness for the visible spectrum

Violet light λ₀ = 400 nm = 400 10⁻⁹ m

      t₁ = 400 10⁻⁹ / 4 1.33

      t₁ = 75.2 10-9 m

Red light λ₀ = 700 nm = 700 10⁻⁹ m

       t₂ = 700 10⁻⁹ / 4 1.33

       t₂ = 131.6 10⁻⁹ m

Therefore, for all wavelengths to have destructive interference, the thickness must be less than 75 10⁻⁹ m = 75 nm

b) a film like eta is very thin, it is achieved when gravity thins the pomp, but any movement or burst of air breaks it,

3 0
3 years ago
Other questions:
  • You have a 10 volt parallel circuit, with 2 resistors on it. What is the voltage across the first resistor? Across the second?
    14·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    14·1 answer
  • A uniform charge density of 600 nC/m3 is distributed throughout a spherical volume (radius = 14 cm). Consider a cubical (3.2 cm
    14·1 answer
  • Earth's curvature causes _____ heating of the surface by sun.<br> (one word)
    12·2 answers
  • Why does gravity hold objects on earth?
    7·2 answers
  • 1.A car goes off a cliff horizontally at 49 m/s and falls for 5 seconds
    12·1 answer
  • List two things you should not do when encountering a funeral procession?
    12·1 answer
  • The diagram below shows a model of the Earth's orbit around the Sun.
    12·2 answers
  • Two difference between thrust and upthrust .
    8·1 answer
  • Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of 450 newtons stretches a sprin
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!