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.
For this case we have that by definition, the density of a body is given by:
ρ
Where:
M: It is the mass of the body
V: It is the volume of the body
So the correct option is:
"mass divided by volume"
Answer:
mass divided by volume
ρ=
Answer:
Fossil fuels have been used for centuries to generate power, but there are many disadvantages associated with their use:
Fossil fuels pollute the environment.
Fossil fuels are non-renewable and unsustainable.
Drilling for fossil fuels is a dangerous process.
Explanation:
can you help me please? brainly.com/question/21745542
Answer:
I think it might be 9 hz but not 100% shore though
Explanation:
Answer:
The time when the ball strikes the ground is closest to
Explanation:
From the question we are told that
The time of projection is t = 0.0 s
The distance of the point from the ground is
The initial velocity of the ball is
generally the time required to reach maximum height is
Where is the acceleration due to gravity with value
Substituting values
when returning the time and velocity at the roof level is t = 3.69 s and u = 36.2 m/s this due to the fact that air resistance is negligible
The final velocity at which it hit the ground is
So
substituting values
The time taken for the ball to move from the roof level to the ground is
substituting values
The total time for this travel is