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
Drupady [299]
3 years ago
15

What is the primary function of earth's atmosphere (1 point)?

Physics
1 answer:
lana66690 [7]3 years ago
5 0
<span>Without the atmosphere that protects the Earth, humans, animals and all plant life would not be able to survive. The atmosphere works to hold oxygen in the area around the earth. Humans and most animals are dependent on oxygen. Plants are also dependent on oxygen because they take the leftover carbon dioxide from humans when they inhale the oxygen.</span>
You might be interested in
5. If you were asked to give an example of kinetic and potential energy, which of the
Artemon [7]

Answer:

D or B i think!

Explanation:

3 0
3 years ago
Read 2 more answers
A 600-nm-wavelength beam of light is incident on a soap film with air on both sides. The film has an index of refraction of 1.33
sergiy2304 [10]

Answer:

the film's minimum thickness to make the reflected light enhanced in brightness is 112.8 nm

Explanation:

Given the data in the question;

wavelength λ = 600 nm  

index of refraction = 1.33

so the film's minimum thickness to make the reflected light enhanced in brightness = ?

condition for maxima for reflected light is;

2nt = [ ( 2m + 1 )λ ] / 2

we solve for t

4nt = [ ( 2m + 1 )λ ]

t =  [ ( 2m + 1 )λ ] / nt

Now, for minimum thickness m = 1

t = λ / 4n

so we substitute in our values;

t = 600 nm / ( 4 × 1.33 )

t = 600 nm / 5.32

t = 112.78195 ≈ 112.8 nm  { one decimal place }

Therefore, the film's minimum thickness to make the reflected light enhanced in brightness is 112.8 nm

4 0
3 years ago
Romeo ( mass = 70 kg ) feels a gravitational attraction for Juliet ( mass = 50 kg ). If hey are 20 m apart, find the force.
3241004551 [841]
What even is this question
Love? Idk lol
7 0
3 years ago
Consider the image above. Vi = the initial velocity and Vf = the final velocity. Is there acceleration? Explain your answer.
lutik1710 [3]
<span><span>Velocity is a vector, and the initial and final ones are in opposite directions.
There must have been acceleration in order to change the direction of motion.</span>

A) No. The initial and final velocities are the same.
This is all wrong, and not the correct choice.
It's "Yes", and the initial and final velocities are NOT the same.

B) Yes. The ball had to slow down in order to change direction.
This is poor, and not the correct choice.
The "Yes" is correct, but the explanation is bad.
Acceleration does NOT require any change in speed.

C) No. Acceleration is the change in velocity. The ball's velocity is constant.
This is all wrong, and not the correct choice.
It's "Yes", there IS acceleration, and the ball's velocity is NOT constant.

D) Yes. Even though the initial and final velocities are the same, there is a change in direction for the ball.
This choice is misleading too.
The "Yes" is correct ... there IS acceleration.
The change in direction is the reason.
The initial and final velocities are NOT the same.  Only the speeds are.
</span>
3 0
3 years ago
Read 2 more answers
A particle is accelerated uniformly from rest, so that after 10 seconds it has achieved a speed of 15 m/s. Find its acceleration
beks73 [17]

Answer:

1.5 m/s²

Explanation:

Applying,

a = (v-u)/t ...................... Equation 1

Where a = acceleration of the particle, v =  final velocity of the particle, u = Initial velocity of the particle, t = time.

From the question,

Given: u = 0 m/s (From rest), v = 15 m/s, t = 10 seconds

Substitute these values into equation 1

a = (15-0)/10

a = 15/10

a = 1.5 m/s²

3 0
3 years ago
Other questions:
  • You replace a 200 W lamp with a more efficient 55 W LED lamp. If you leave your lights on 24 hours a day, how much energy are yo
    15·2 answers
  • A heat engine operating between energy reservoirs at 20?c and 600?c has 30% of the maximum possible efficiency.
    7·1 answer
  • B⃗ is kept constant but the coil is rotated so that the magnetic field, B⃗ , is now in the plane of the coil. How will the magne
    8·2 answers
  • Which variable is the result of the experiment?
    6·2 answers
  • How much time will it take a 75w ceiling fan to convert 1500j of electrical energy into mechanical and thermal energy?
    9·1 answer
  • A single circular current loop 14.0 cm in diameter carries a 2.40 A current. You may want to review . For related problemsolving
    6·1 answer
  • Which describes a virus?
    10·1 answer
  • A projectile is launched with an initial speed of 39 m/s at an angle of 59° above the horizontal. What are the (a) magnitude and
    14·1 answer
  • A bicycile traves with an average velocty 15km/h north for 20min what is his displasment​
    12·1 answer
  • A wave traveling in a string has a wavelength of 35 cm, an amplitude of 8. 4 cm, and a period of 1. 2 s. What is the speed of th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!