HELP ASAP PLEASE!!!

What forces shape the stars in galaxies? (Astronomy question, but didn't fit into any categories) PLEASE

MaRussiya [10]

Answer:

Force of gravity

Explanation:

when the force of gravity pulls large gas clouds and dust together, the concentrated gas clouds and dust collapse under the force of gravity forming stars.

There are many galaxies out there in the universe, each galaxy has its own solar systems, stars, and collection of gas and dust. We (earth) belong to the Milky Way galaxy, our galaxy got this name from the Romans. They called in 'via lactea', which directly translates to 'road of milk' because of the milky patch they saw at night.

4 0

4 years ago

What is the frequency of a pendulum that is moving at 30 m/s with a wavelength of .35m?

tia_tia [17]

Answer:

Velocity (v) = 30 m/s

Wavelength = 35 m

frequency (f) = ?

now we know

v = wavelength * f

30 = 35 * f

therefore frequency = 0.857hertz

5 0

4 years ago

Consider the circular motion of a positively charged particle in the plane of this paper, due to a constant magnetic field B~ wh

barxatty [35]

Answer:

the direction of the particle is anti clockwise.

Explanation:

We know that;

- It's a positive particle

- That it's moving in a circle in a magnetic field

- We know the direction of the magnetic field

We can deduce the direction of the magnetic force because it is moving in a circle.

So the force is pointing to the centre of the circle and that's what is keeping it in that circular motion.

Since we know the direction of the magnetic field and force, we can use right hand rule to figure out the direction of the particle since the particle is positive.

Using right hand rule, the thumb which is the particle is pointing anticlockwise. So the direction of the particle is anti clockwise.

3 0

3 years ago

Which of the following is an example of the law of conversion of energy

ruslelena [56]

Is there a picture so I can help you

8 0

3 years ago

The diagram shows a multi-tap transformer. Which pair of terminals would you connect to produce an output voltage of 8 V?

Triss [41]

Answer:

The pair of terminals to produce an output voltage of 8V are K and M.

Explanation:

A transformer is an electronic device that can be used to increase or decrease an output voltage. It consists of secondary and primary coils, and operates on the principle of induction.

$\frac{V_{s} }{V_{p} }$ = $\frac{N_{s} }{N_{p} }$

where: $V_{s}$ is the voltage in the secondary coil, $V_{p}$ is the voltage in the primary coil, $N_{s}$ is the number of turns in the secondary coil and $N_{p}$ is the number of turns in the primary coil.