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
Oxana [17]
2 years ago
7

If a star were located exactly at each celestial pole, the corrected altitude of the star would equal __________.

Physics
1 answer:
dimulka [17.4K]2 years ago
4 0

Answer:

the observer's latitude

Explanation:

the observer's latitude

You might be interested in
Which of the following describes electric change?
DedPeter [7]
It would be B, like charges repel and unlike charges attract.
8 0
3 years ago
Read 2 more answers
An insect 5.00 mm tall is placed 20.0 cm to the left of a thin planoconvex lens. The left surface of this lens is flat, the righ
jenyasd209 [6]

Answer:

a) i = -9.63 cm ,    h ’= .0.24075 cm   erect

b)  i = 259.74 cm ,

Explanation:

For this exercise let's start by finding the focal length of the lens

               1 / f = (n-1) (1 / R₁ - 1 / R₂)

                1 / f = (1.70 -1)) 1 / ∞ - 1/13)

                1 / f = 0.0538

                 f = - 18.57 cm

Now we can use the constructor equation

             1 / f = 1 / o + 1 / i

             1 / i = 1 / f - 1 / o

              1 / i = -1 / 18.57 -1/20

               1 / i = -0.1038 cm

               I = -9.63 cm

For the height of the

image let's use magnification

                 m = h '/ h = - i / o

                  h ’= -h i / o

                  h ’= - 0.5 (-9.63) / 20

                  h ’= .0.24075 cm

b) we invert the lens

The focal length is

             1 / f = (1.70 -1) (1/13 - 1 / int)

              1 / f = 0.0538

             f = 18.57 cm

             1 / i = 1 / f -1 / o

             1 / I = 1 / 18.57 - 1/20

             1 / I = 3.85 10-3

             i = 259.74 cm

     

            h ’= - 0.5 259.74 / 20

             h ’= 6.4935 cm

7 0
3 years ago
explain y it is easier to loosen a tight but using a spanner with along handle than with a short handle​
8090 [49]

Answer:

This is because using a long handled requires less force to the center of gravity and makes it easier to rotate than a short handled spanner

3 0
3 years ago
A. Obtain the following: microwave, ruler, something meltable (e.g. candy bar, marshmallows) B. A microwave works by setting up
Makovka662 [10]

Answer:

E = 124.7 N / C

Explanation:

Let's analyze the exercise: the microwave creates an electromagnetic wave of frequency F = 2.45 GHz, this wave is introduced into the microwave cavity and is reflected on the metal walls, which is why one or more standing waves are formed.

The electric field of the standing wave is

            I = E²

            E =√I

where I is the intensity of the radiation.

What is it

             I = P / A

where P is the effective emission power, almost all the power of the microwave and A is the area of ​​the cavity, in the most used microwaves

P = 700 W and the area is A = 25 x 18 cm² = 0.045 m²

             I = 700 / 0.045

             I = 15555.56 W/m²

let's calculate the electric field

            E = √15555.56

            E = 124.7 N / C

7 0
3 years ago
jamal is playing with magnetic toy vehicles. He has two identical magnetic vehicles (purple and green) on different sides of a c
KengaRu [80]

Answer:

Since potential energy increases with increase in the separation distance, Jamal should move the toy car that will create the largest separation distance.  The magnetic force that will act on the vehicles as he moves the cars away from each other will decrease because magnetic force is inversely proportional to the separating distance between the cars.

Explanation:

Since potential energy increases with increase in the separation distance, Jamal should move the toy car that will create the largest separation distance.The magnetic force that will act on the vehicles as he moves the cars away from each other will decrease because magnetic force is inversely proportional to the separating distance between the cars.

5 0
2 years ago
Other questions:
  • .
    5·2 answers
  • a paraellel plate capacitor consists of 2 large circular sheets of metal separated by 1.53 cm. The electric field energy density
    9·1 answer
  • Which of the following ways is usable energy lost?
    14·2 answers
  • Can I have help? please please please!
    8·2 answers
  • After a projectile is fired into the air, what is the acceleration in the x-direction? (Assume no air resistance.)
    7·2 answers
  • A vessel at rest at the origin of an xy coordinate system explodes into three pieces. Just after the explosion, one piece, of ma
    14·1 answer
  • How do weathering and deposition differ
    12·1 answer
  • Everything is made up of blank and all matter is made of blank. There are three basic parts of atom: protons,neutrons, and blank
    8·1 answer
  • What is the root cause of earths magnetic field?
    15·1 answer
  • 8 kg cat is running with a velocity of 4 m/s. What is the cat's momentum?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!