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
Ivan
3 years ago
6

A navigational beacon in deep space broadcasts at a radio frequency of 50 MHz. A spaceship approaches the beacon with a relative

velocity of 0.40c. What is the frequency of the beacon radio signal that is detected on the ship
Physics
1 answer:
Mekhanik [1.2K]3 years ago
8 0

Answer:

The frequency heard y the ship is 70 MHz.

Explanation:

True frequency, f = 50 MHz

speed of source, vs = 0

speed of observer, vo = 0.4 c

Let the frequency heard by the ship is f'.

Use the formula of doppler's effect

f' = \frac{v +v_o}{v+ v_s}f\\\\f' = \frac{c + 0.4 c}{c}\times 50\\\\f' = 1.4\times 50\\​\\f' = 70 MHz

You might be interested in
Pleasse help
GaryK [48]

Hi,

The correct answer is letter B.

The last group contains noble gases, while both along the top and along the bottom the elements on the right are non-metals.

3 0
3 years ago
Read 2 more answers
In treatment the so called "nervous " disorder, freuad discovered the most effetive method to be
maks197457 [2]

Answer:

Freud believed that people could be cured by making conscious their unconscious thoughts and motivations, thus gaining insight. The aim of psychoanalysis therapy is to release repressed emotions and experiences, i.e., make the unconscious conscious.

Hope this helps. If it does, please mark me brainliest.

Explanation:

6 0
2 years ago
How do we know that solar system formed from a spinning disk of gas and dust
Mademuasel [1]

The evidence of this research is published in the scientific journal Nature communication.

<u>Explanation:</u>

Our solar system shaped about 4.5 billion years prior from a thick haze of interstellar gas and residue. The cloud crumbled, potentially due to the shock wave of a close by detonating star, called a supernova. At the point when this residue cloud crumbled, it framed a sun powered cloud—a turning, whirling plate of material.

The research is distributed in the latest issue of journal Nature Communications. About 4.6 billion years prior, a haze of gas and residue that in the end framed our nearby planetary group was upset. The following gravitational breakdown framed the proto-Sun with an encompassing plate where the planets were conceived.

5 0
2 years ago
Which of the Moon’s positions will cause the highest or spring tides?
Bess [88]

The correct answer is A and C

During a Spring Tide, it will be horizontal, and a Neap tide is vertical

Brainliest plz!


8 0
3 years ago
Read 2 more answers
If an electric wire is allowed to produce a magnetic field no larger than that of the earth (0.50×10−4t) at a distance of 12 cm
Studentka2010 [4]
The magnetic field generated by a wire carrying a current I is:
B(r) =  \frac{\mu_0 I}{2 \pi r}
where r is the distance at which the magnetic field is measured, and \mu_0 = 4 \pi \cdot 10^{-7} NA^{-2} is the magnetic permeability in vacuum.

The problem says that the magnetic field at a distance r=12 cm=0.12 m from the wire must be no larger than B=0.5 \cdot 10^{-4}T. Substituting these values, we can find the maximum value of the current I that the wire can carry:
I= \frac{2 \pi r B}{\mu _0} = \frac{2 \pi (0.12 m)(0.5 \cdot 10^{-4}T)}{ 4 \pi \cdot 10^{-7} NA^{-2}}= 30 A
4 0
3 years ago
Other questions:
  • What is a physical property that shows how strongly the particles of a substance are held together?
    6·1 answer
  • Why is a cathode ray tube connected to a vacuum pump?
    7·1 answer
  • A ball is thrown downward from the top of a 55.0 m tower with an initial speed of 11.0 m/s. Assuming negligible air resistance,
    14·1 answer
  • A mass of 2000 kg. is raised 5.0 m in 10 seconds. What is the potential energy of the mass at this height?
    15·1 answer
  • If a pulley with six supporting ropes is used to lift a 1200 lb piano, what input force is needed?
    12·2 answers
  • What is an odometer?
    6·2 answers
  • The mass of an object changes as the distance from the center of gravity changes. True False
    7·2 answers
  • Why is this website not work how i want it this is so annoying
    7·2 answers
  • Which situation would create a field like the one shown here?
    8·1 answer
  • The dimensions of the disk of our milky way galaxy are:.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!