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
AURORKA [14]
3 years ago
11

The earth has a radius of 6.38 × 106 m and turns on its axis once every 23.9 h.

Physics
1 answer:
Vladimir [108]3 years ago
8 0

Answer:

a) V = 465.9 m/s

b) θ = 70.529°

Explanation:

Let's first calculate angular velocity of earth:

\omega=\frac{2\pi}{23.9h}*1h/3600s

Velocity of a person on Ecuador will be:

V_E = \omega*R

V_E = 465.9 m/s

For part b, since angular velocity is the same:

\frac{\omega*R}{3}=\omega*(R*cos\theta )

Solving for θ:

\theta=acos(1/3)

\theta=70.529\°

You might be interested in
Increasing the concentration of greenhouse gases in Earth's atmosphere decreases the transparency of the atmosphere to infrared
kondaur [170]

Answer:

Decreases the transparency of the atmosphere to infrared light.

Explanation:

When a large amount of green-house gases are present in the atmosphere, the layer of these gases become opaque to infrared radiation and radiation from the sun get trapped into these gases molecules. These excited molecules radiate this energy into our own atmosphere and that why the temperature of Earth is rising due to the Green-House effect.

8 0
3 years ago
In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth
Natali [406]
C) alternating current .
<span>
B)direct current </span>
6 0
3 years ago
Read 2 more answers
A box is sitting on a 2 m long board at one end. A worker picks up the board at the end with the box so it makes an angle with t
Vlada [557]

Answer:

Explanation:

When the box is on the ramp , component of its weight along the ramp

= mg sinθ

Friction force acting on it in upward direction

=μ mg cosθ

For sliding

μ mg cosθ < mg sinθ

μ cosθ < sinθ

.5 x cos35 < sin35

.41 < .57

So the box will slide

When sliding starts , kinetic friction acts

Net force in downward direction

mgsinθ - μ mg cosθ

acceleration

= gsinθ - μ g cosθ

= 5.62 - .3 x 9.8 x cos35

= 5.62 - 2.4

= 3.22 m /s²

3 0
3 years ago
If a sound wave traveled from a solid to a liquid its speed would:.
JulijaS [17]

Answer:

increase

Please Give Brainliest!

5 0
2 years ago
Jefferson refers to
Trava [24]

Answer: natural

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • A freight train leaves the train station 4hrs before a passenger train. The two trains are traveling in the same direction on pa
    7·1 answer
  • Scientist use conversion factors to express the given value of a unit different type of unit true or false
    12·2 answers
  • The diagram below shows a flat mirror reflecting
    8·2 answers
  • What characteristic makes Biology a science, but not Art History?
    15·2 answers
  • NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Which of the following would be an example of basic research?
    13·2 answers
  • Explain what each quantum number in a quantum number set tells you about the electron. Compare and contrast the locations and pr
    9·1 answer
  • Jake drags a sled of mass 18 kg across the snow. The sled is attached to a rope that he pulls with a force of 70 N at an angle o
    13·2 answers
  • An objest with the mass of 2 kg is accelerated at 4 m/s2. the net force acting on the object is
    10·1 answer
  • If you create an equilibrium mixture from f e 3 and s c n − ions, adding c l − ions will choose. Highlight_off because choose. H
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!