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
elena-14-01-66 [18.8K]
3 years ago
9

When the time of day for a certain ship at sea is 12 noon, the time of day at the prime meridian (0 longitude0 is 5 pm. what is

the ships longitude?
1)45W
2)45E
3)75W
4)75E

To an observer in Buffalo, New York, the North star, Polaris, is always located above the northern horizon at an altitude of approximately

1)23 1/2
2)43
3)66 1/2
4)90
Physics
1 answer:
azamat3 years ago
4 0

A).  The sun is highest in London, but will not pass the ship
for another 5 hours.

Since the sun moves from east to west, the ship must be
5 hours west of Greenwich.

Each hour of sun motion is 15° of longitude. 
The ship's longitude is (5 x 15°) = 75° West. 

The ship may be sailing down Columbia Boulevard
in Maple Shade, New Jersey.


B).  The latitude at Buffalo's City Hall is 42.887° North.

Polaris is always within about 2/3 of a degree of that angle
above the northern horizon, when viewed from City Hall.

Choice  2)  is the most appropriate.

You might be interested in
What is the difference between rutherford's model of the atom and bohr's model of the atom
Amanda [17]

Answer:

Rutherford described the atom as consisting of a tiny positive mass surrounded by a cloud of negative electrons. Bohr thought that electrons orbited the nucleus in quantised orbits. Bohr built upon Rutherford's model of the atom. ... So it was not possible for electrons to occupy just any energy level.

Explanation:

7 0
3 years ago
Where would you find convergent and divergent plate boundaries relative to
Sergio [31]

Answer:

When two tectonic plates meet, we get a “plate boundary.” There are three major types of plate boundaries, each associated with the formation of a variety of geologic features.

Explanation:

8 0
2 years ago
How does light travel?
Ivenika [448]

Answer:

C

Explanation:

light can travel in a vacuum Anne the sped varies

7 0
3 years ago
Read 2 more answers
Two small stereo speakers are driven in step by the same variable-frequency oscillator. Their sound is picked up by a microphone
anygoal [31]

Answer:

The fundamental frequency at which the sound of speakers at the microphone produce constructive interference is 801.076458 Hz

Explanation:

For a given arrangement having constructive interference, we have;

R₁ - R₂ = 2·x = 0 + n·λ

The distance from one speaker to the microphone. R₁ = 4.50 m

The distance between the two speakers = 2.00 m

The angle formed between the direction from the microphone to the speaker closest and the directional path between the speakers = 90°

Therefore, by Pythagoras's theorem, the distance from the speaker furthest from the microphone, to the microphone, 'R₂' is given as follows;

R₂ = √(4.50² + 2.00²) = √(24.25) = 4.9244289009 ≈ 4.924

∴ R₂ ≈ 4.9244289 m

R₂ - R₁ = 4.9244289 m - 4.5 m = 0.4244289 m

For constructive interference, R₂ - R₁ =0.4244289 m = n·λ

For n = 1, we have;

R₂ - R₁ =0.4244289 m = n·λ = 1 × λ = λ

λ = 0.4244589 m

f = v/λ = 340 m/sec/(0.4244289 m) ≈ 801.076458 Hz

Therefore the lowest possible fundamental frequency at which the speakers produce constructive interference, f = 801.076458 Hz

7 0
3 years ago
What roles does society,politics and economics play In science ?
Debora [2.8K]
I believe the website www.asanet.org will help (:
7 0
3 years ago
Other questions:
  • The engine of a locomotive exerts a constant force of 8.1*10^5 N to accelerate a train to 68 km/h. Determine the time (in min) t
    7·2 answers
  • In the virtual lab, calculations were made of the predicted diffraction angle, using the formula
    8·1 answer
  • a bird flies north with a force of 11N, the air resistance is 2N.show the vectordiagram, with the magnitude and displacement ind
    5·1 answer
  • Which is the best example of the concept of heredity? A. A black cat blends into its environment at night. B. A baby has his mot
    8·2 answers
  • The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The turns ratio of t
    12·2 answers
  • A ball is on the end of a rope that is 1.72 m in length. The ball and rope are attached to a pole and the entire apparatus, incl
    12·1 answer
  • What is DC in electricity mean?
    9·1 answer
  • A less massive moving object has an elastic collision with a more massive object that is not moving. Compare the initial velocit
    8·1 answer
  • If energy cannot be created or destroyed, where does it go?
    13·2 answers
  • A mass of (200 of hot water at (75, 0 degrees * C) is mixed with cold water of mass M at (5, 0 degrees * C) The final temperatur
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!