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
Nady [450]
2 years ago
5

The shortest wavelengths occur in the:red end of the spectrumblue end of the spectrummiddle of the spectrum The light-gathering

capacity of a telescope is dependent upon the:magnificationfocal lengthsize of human irisarea of aperture
Physics
1 answer:
12345 [234]2 years ago
8 0
The shortest visible wavelength is the last color you can see
at the blue end of the spectrum.

The light-gathering capacity of a telescope depends on the area
of the main lens in the front, or the main mirror in the back.
That's also the area of the opening of the tube, called the 'aperture'.
You might be interested in
PLEASE HELP ME! IM TIMED
olga nikolaevna [1]
I would say C! But I’m not 100% sure.
6 0
3 years ago
What is the term for the ability to cause change in matter?
Leokris [45]

Answer:

A. Energy

Explanation:

You can change energy from one form to another when you lift your arm or take a step. Energy is used to move matter. In this scenario, the matter would be you.

3 0
3 years ago
PLEASE HELP ME,, I WOULD BE SO HAPPY
Scrat [10]

Answer:

thanks for the points liar

Explanation:

4 0
3 years ago
You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics
olga nikolaevna [1]

Answer:112.82 m/s

Explanation:

Given

range of arrow=68 m

Angle=3^{\circ}

as the arrow travels it acquire a vertical velocity v_y

v_y=u+at

v_y=0+9.81\times t-------1

Range is given by

R=ut

where u=initial velocity

68=u\times t

t=\frac{68}{u}

substitute the value of t in eqn 1

v_y=9.81\times \frac{68}{u}

v_y\times u=9.81\times 68=667.08--------2

and tan(3)=\frac{v_y}{u}

v_y=utan(3)=0.0524u

substitute it in 2

0.0524 u^2=667.08

u^2=12,728.644

u=112.82 m/s

6 0
3 years ago
Which of the following statements are true?
inessss [21]

Answer:

a. If an object's speed is constant, then its acceleration must be zero.

FALSE

As we know that acceleration is defined as the rate of change in velocity

a = \frac{d\vec v}{dt}

so we can not say anything about the acceleration when speed is given to as and no information is given about velocity

b. If an object's acceleration is zero, then its speed must be constant.

TRUE

As we know that acceleration is defined as the rate of change in velocity

a = \frac{d\vec v}{dt}

Since we know that if acceleration is 0 then velocity must be constant and hence speed is also constant

c. If an object's velocity is constant, then its speed must be constant.

TRUE

Since velocity is constant then it shows that its magnitude and direction both are constant so its speed is also constant.

d. If an object's acceleration is zero, its velocity must be constant.

TRUE

As we know that acceleration is defined as the rate of change in velocity

a = \frac{d\vec v}{dt}

Since we know that if acceleration is 0 then velocity must be constant

e. If an object's speed is constant, then its velocity must be constant.

FALSE

Speed is just the magnitude so we can not say about its direction and hence if speed is constant then velocity may or may not change

7 0
2 years ago
Other questions:
  • Get the lead out! That is really graphite in your pencil, not lead. Graphite is a form of carbon. Use the physical properties of
    8·2 answers
  • During cooling, the kinetic energy of the molecules falls. Why does this happen?
    11·2 answers
  • A jet lands at 80.0 m/s, the pilot applying the brakes 2.0 s after landing.
    8·1 answer
  • Use these options to describe each genotype.
    13·2 answers
  • 6. A man is riding a bike with an acceleration of 5.0 meters per second and a mass of the bike and him combined is 20 kg. What f
    15·1 answer
  • Which type of motor uses a brush and commutator to operate?
    7·2 answers
  • Which of the following statements is true vibrations ?
    5·1 answer
  • An astronaut weighing 190 lbs on Earth is on a mission to the Moon and Mars.
    9·1 answer
  • Reposting the repost because it got deleted TvT
    14·1 answer
  • How far can a bus carrying small children, travel at a rate of 60 km per hour travel in 2 1/2 hours?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!