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
barxatty [35]
2 years ago
6

Day and night are caused by

Physics
1 answer:
JulijaS [17]2 years ago
4 0

Answer:

A

Explanation:

How is the rotation of the earth responsible for causing day and night?

We get day and night because the Earth spins (or rotates) on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. It takes 24 hours for the world to turn all the way around, and we call this a day.

You might be interested in
a 1020-hertz sound wave travels at 340 m/s in air with a wavelength of a) 30 m. b) 3 m. c) 0.333 m. d) 1 m. e) none of the above
eimsori [14]

The wavelength of the sound wave is equal to 0.333 m. Therefore, option (c) is correct.

<h3>What are frequency and wavelength?</h3>

The frequency of the wave can be defined as the number of oscillations that occur in one second and can be expressed in hertz. The wavelength can be defined as the distance between the two adjacent points of a wave such as two crests or troughs.

The relationship between frequency (ν), speed of sound waves (V), and  wavelength (λ):

V = νλ

Given, the frequency of the sound wave, ν = 10 Hz

The speed of the sound wave,V = 340 m/s

The wavelength of the sound waves can determine as follows

λ = V/ν = 340/1020 = 0.333 m.

Therefore, the wavelength of the sound wave is 0.333 m

Learn more about wavelength and frequency, here:

brainly.com/question/18651058

#SPJ1

5 0
10 months ago
13. You push with 56 N on a 15-kg box, and there is a 23-N force of friction. How fast will the box accelerate?
Flura [38]

Answer:

The acceleration is 2.2 m/s^2

Explanation:

In the attached image, we can see the free body diagram. And using the second law of Newton it will be possible to find the acceleration of the box.

4 0
3 years ago
As the average kinetic energy of a substance increases, the tempature of the sample
taurus [48]
I have no clue. Sorry bro
6 0
2 years ago
Read 2 more answers
I need some help with this!
Sonja [21]

Explanation:

ummm I believe it's frequency

5 0
3 years ago
Eating 2500 Cal every day a friend of mine maintains a stable weight of 70 kg. One day, after eating 3500 Cal, he decided to do
Kaylis [27]

Answer:

Explanation:

Calories to be burnt = 3500 - 2500 = 1000 Cals .

Efficiency of conversion to mechanical work  is 25 % .

Work needed to burn this much of Cals = 1000 x 100 / 25 = 4000 Cals.

4000 Cals = 4.2 x 4000 = 16800 J  .

Work done in one jump = kinetic energy while jumping

= 1/2 m v²

= .5 x 70 x 3.3²

= 381.15 J .

Number of jumps required = 16800 / 381.15

= 44 .

4 0
2 years ago
Other questions:
  • Why does the frequency of a wave decrease as the wavelength increases?
    5·1 answer
  • Which best describes the relationship between population size, carrying capacity, and limiting factors?
    5·2 answers
  • A man consumes 2055 kcal of food in one day, converting most of it to body temperature. If he loses half this energy by evaporat
    8·2 answers
  • A football goalkeeper moves across her goal in a straight line. Her motion is shown on the following graph of horizontal positio
    5·1 answer
  • PLEASE HELP
    12·1 answer
  • 7. A student is rotating an object on a rope that is 4.5m long. If we increase the length
    5·1 answer
  • Which is the best term to describe a chemical reaction in which the reactants have less potential energy than the products?
    15·1 answer
  • How will you show that white light is made of several colours?
    9·1 answer
  • You are driving your car around a roundabout when you get a flat tire and you decelerate at a constant rate to a stop. The diame
    6·1 answer
  • Spiderman is standing on a building and notices some shady characters up to no good on the street below. Rather than leap or
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!