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
Gelneren [198K]
3 years ago
12

Pulsars A. spin very rapidly when they're young. B. are the cause of gamma-ray bursts. C. spin very slowly when they're young, a

nd gradually spin faster as they age. D. generally form from 25-solar-mass stars. E. emit radio in all directions.
Physics
1 answer:
patriot [66]3 years ago
5 0

Answer: A. spin very rapidly when they're young.

Explanation:

A pulsar (pulsating star) is a neutron star that emits very intense jets of electromagnetic radiation in the range of radio waves, X-rays or gamma rays, at short and periodic intervals due to its intense magnetic field that induces this emission.  

One of its main charateristics is its  rapidly rotation (spin) when this star is young. So, as the star spins, beams of radio radiation from it sweep through space. If one of these beams points toward the Earth, we observe a <u>pulse</u>.  

This is possible when the magnetic pole of the star "points" to the Earth and then stops pointing a thousandth of a second later due to the fast rotation of the star, appearing again when the same pole returns to point towards Earth.  

You might be interested in
I WILL MARK YOU THE BRAINLIEST
mr Goodwill [35]

Explanation:

700N right

to get the net force

you gotta let one direction be the negative ( the smaller force)

so the total force towards the left is 100N ( 60 + 40= 100)

which is smaller than the right force which is 800 N so you let 100 N be negative

so without even calculating , you can know that it will be moving towards the right because right force > left force

your add both forces ( remember 100 N is negative)

so 800N + ( - 100N)

= 700N

towards the right

hope this helps

this is just one method that helped me understand

please mark it brainliest

3 0
3 years ago
Read 2 more answers
The distance between two particles is 2 centimeters. If the distance is increased to 4 centimeters, the force will be ?
postnew [5]

Answer:

The new force is 1/4 of the previous force.

Explanation:

Given

Initial\ Distance = 2cm ---- r_1

New\ Distance = 4cm --- r_2

Required

Determine the new force

Let the two particles be q1 and q2.

The initial force F1 is:

F_1 = \frac{kq_1q_2}{r_1^2} --- Coulomb's law

Substitute 2 for r1

F_1 = \frac{kq_1q_2}{2^2}

F_1 = \frac{kq_1q_2}{4}

The new force (F2) is

F_2 = \frac{kq_1q_2}{r_2^2}

Substitute 4 for r2

F_2 = \frac{kq_1q_2}{4^2}

F_2 = \frac{kq_1q_2}{4*4}

F_2 = \frac{1}{4}*\frac{kq_1q_2}{4}

Substitute F_1 = \frac{kq_1q_2}{4}

F_2 = \frac{1}{4}*F_1

F_2 = \frac{F_1}{4}

The new force is 1/4 of the previous force.

3 0
2 years ago
How long will it take to go 150000m traveling at 50km/hr
Tom [10]

Answer:

3000 hurs

Explanation:  just divide 150000 by 50 and get 3000

4 0
3 years ago
what is the approximate weight of a 20-kg cannonball on the moon if the acceleration due to gravity is 1.6m/s^2
monitta
On Earth, a cannonball with a mass of 20 kg would weigh 196 Newtons.
With the formula F=mg, where F is the weight in Newtons, m is the mass, and g is the acceleration due to gravity on the Earth which is 9.8m/s^2.
F=20kg x 9.8m/s^2= 196 Newtons

BUT on the moon, acceleration due to gravity is 1.6 m/s^2,
so F=mg=20kgx1.6m/s^2= 32 N
5 0
3 years ago
When water changes into vapor this is called?
Scorpion4ik [409]

When water changes into vapor, it is called evaporation.  BONUS:  This is formed by the boiling point of water, which is 230°F (Fahrenheit) or 110°C (Celsius).

4 0
3 years ago
Other questions:
  • To use Faraday's law for this problem, you will need to construct a suitable loop, around which you will integrate the electric
    8·1 answer
  • How does surface tension relate to the molecular structure of water
    10·1 answer
  • Two astronauts are floating together with zero speed in a gravity-free region of space. The mass of astronaut A is 110 kg and th
    13·1 answer
  • 1. A 2.10 m rope attaches a tire to an overhanging tree limb. A girl swinging on the
    8·1 answer
  • 6. Why are there some areas of the country where wind power is not the best option? Explain.
    11·2 answers
  • Which property of a substance is not affected by physical changes?
    10·1 answer
  • What simple machines combine to make a shovel which is a compound
    15·1 answer
  • An object takes 2.8 years to orbit the Sun. What is its average distance (in AU) from the Sun?
    8·1 answer
  • Plz help!! This is timed!!!!
    8·1 answer
  • 300N effort is applied to lift the load of 900N by using a first class lever. If the distance between the load and fulcrum is 20
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!