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
Dafna1 [17]
3 years ago
7

a 2-kg object is dropped from a height of 1000 m. What is the force of air resistance on the object when it reaches terminal vel

ocity
Physics
1 answer:
strojnjashka [21]3 years ago
5 0
It stops accelerating when the air resistance is equal to its weight.
That's (m•g)

= (2 kg) • (9.8 m/s^2)

= 19.6 newtons
You might be interested in
Which of the following statements is untrue in regard to sound traveling in air?
maksim [4K]
Air never stops? IDK

7 0
3 years ago
1) Arrange the following spectral regions in order of increasing energy: infrared, microwave, ultraviolet, visible.
Anton [14]

Answer:

The order of increasing energy is as follows

"microwave < infrared < visible < ultraviolet"

Option (A) is correct.

Explanation:

Given:

Arrange the following spectral regions in order of increasing energy: infrared, microwave, ultraviolet, visible.

From the formula of energy in terms of frequency.

  E = hf

Where h = planck constant, f = frequency of light.

From above formula we can conclude that higher frequency means higher energy.

In our case ultraviolet has higher frequency and microwave has lower frequency.

So ultraviolet has higher energy and microwave has lower energy.

microwave < infrared < visible < ultraviolet

Therefore, the order of increasing energy is as follows

"microwave < infrared < visible < ultraviolet"

7 0
3 years ago
A scientist is designing a device that will mimic Earth's atmosphere by
mafiozo [28]

Answer:

1. Ultraviolet light (UV)

2. X-rays

3. Gamma-rays

Explanation:

Though there are different types of energy or electromagnetic waves with varying wavelengths, including the likes of Gamma X-rays, ultraviolet light, visible light, infrared radiation, and microwave radiation.

What is more certain is that the atmosphere blocked the high-energy waves from getting to the earth surface or biosphere such as Ultraviolet light (UV), X-rays and Gamma-rays

8 0
3 years ago
If mass of both the objects are doubled
Fofino [41]

Answer:

it should be four times

4 0
2 years ago
What building materials do you believe would work well to build a home in that area? Explain why you chose these materials.
Luden [163]
Depends on what the area is. If it’s a rural place, Wood is cheep & easy to build. If there’s a lot of corrosion, strong weather/hurricane, bricks.
8 0
3 years ago
Other questions:
  • Which axis is the horizontal axis in a graph?*
    11·2 answers
  • Usually the hull of a ship contains a large volume of air. Why?
    6·1 answer
  • ANSWER ASAP which of the following is true about cells?
    12·2 answers
  • An impulse always produces a change in <br> A. momentum<br> B. speed <br> C. direction<br> D. force
    15·2 answers
  • Question 2 (1 point)
    14·1 answer
  • Friction _____.
    13·1 answer
  • Plz help urgent <br> i will give brainliest
    8·1 answer
  • The air going into the tyre was warmed up by the pumping. What effect will this have on the motion of Gad molecules in the air i
    10·1 answer
  • The magnitude of perpendicular vectors can be determined using ....
    13·1 answer
  • Which of the following are true about renewable resources?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!