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
Pavel [41]
3 years ago
9

What kind of light would be the best to use to look inside a cold dark cloud and see the warm stars forming inside?

Physics
1 answer:
lys-0071 [83]3 years ago
7 0
<h2>Answer: Infrared light</h2>

A dark nebula is a cloud of dust and cold gas, which does not emit visible light and hides the stars it contains.

These types of nebulae are composed mainly of the hydrogen they obtain from nearby stars, which is their fuel.

It is using infrared light that we can "observe" and analyze in detail what happens in the inner parts of these nebulae.

You might be interested in
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A
Flura [38]

Answer:

The mass of the wheel is 2159.045 kg

Explanation:

Given:

Radius r = 0.330

m

Force F = 290 N

Angular acceleration \alpha  = 0.814 \frac{rad}{s^{2} }

From the formula of torque,

 Γ = I\alpha                                        (1)

 Γ = rF                                       (2)

rF = I \alpha

Find momentum of inertia I from above equation,

I = \frac{rF}{\alpha }

I = \frac{0.330 \times 290}{0.814}

I = 117.56 Kg. m^{2}

Find the momentum inertia of disk,

 I = \frac{1}{2}  Mr^{2}

M = \frac{2I}{r^{2} }

M = \frac{2 \times 117.56}{(0.330)^{2} }

M = 2159.045 Kg

Therefore, the mass of the wheel is 2159.045 kg

8 0
3 years ago
The world’s longest organ pipe, in the boardwalk hall auditorium in atlantic city, is 64 feet long. what is the fundamental freq
zepelin [54]

The fundamental frequency of this open-open pipe is 8.82 Hz

The quantity of waves that pass a set location in a predetermined period of time is known as frequency. Frequency is the number of full cycles per second in the alternating current direction for an oscillating or fluctuating current. The hertz, also known as Hz, is the accepted unit of frequency.

The temporal rate of change observed in oscillatory and periodic phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light, is specified by the frequency, an essential parameter in science and engineering.

Assume vs = 344 m/s

f1 = vs/2L

   = 344 m/s/ 2∙64 ft/(3.281 ft/m)

   = 8.82 Hz

To know more about Frequency refer:

brainly.com/question/14131991

#SPJ4

5 0
2 years ago
What is the weight of a 42 kg object if the object was on the moon?
sveticcg [70]
(1.6 m/s²)(42 Kg)= 80 N
4 0
3 years ago
How do you determine the specific heat of a substance?
svetlana [45]

Answer:

I think it's A

Explanation:

3 0
3 years ago
Another athlete using a different spring exerts an average force of 400 N to enable her
babymother [125]

Answer:84Nm

Explanation:

force=400N

Distance=0.210m

Workdone=force x distance

Workdone=400 x 0.210

Workdone=84Nm

6 0
3 years ago
Other questions:
  • An object has a velocity of 8 m/s and a kinetic energy of 480 j. what is the mass of the object?
    7·2 answers
  • A 100-turn, 2.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60∘ away from vertical increases fro
    8·1 answer
  • A car starts from 0 m along a road and accelerates at 0.5 m/s^2 to the right. A second car starts from 1000 m along the road and
    9·1 answer
  • Any energy transformation involves the loss of some energy as
    5·2 answers
  • What is mechanics? Give name of its two sub branch?
    15·1 answer
  • Matter behaving like a wave rather than like a particle is best illustrated by which phenomenon?
    7·1 answer
  • A 328-kg car moving at 19.1 m/s in the x direction hits from behind a second car moving at 13.0 m/s in the same direction. If th
    15·1 answer
  • A person hears the echo of his own voice from a distant hill after 2 seconds. How far away is the person from the hill, if the s
    14·1 answer
  • A wave has 25 wavelengths in 5 secs. The frequency of the wave is _.
    8·1 answer
  • A ball thrown straight up takes 1.89s to reach a height of 41.6m.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!