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
Trava [24]
2 years ago
15

An astronomer discovers a new galaxy using a telescope. The astronomer wants to investigate how the galaxy is moving relative to

the Milky Way galaxy.
In one or two sentences, make a hypothesis about the movement of the galaxy and explain at least one way to test the hypothesis.
Physics
1 answer:
belka [17]2 years ago
5 0

No matter what, if you’re in an already existing galaxy, any galaxy outside of your existing territory will be moving away from yours.

You might be interested in
The mere exposure effect is
gulaghasi [49]
DescriptionThe mere-exposure effect is a psychological phenomenon by which people tend to develop a preference for things merely because they are familiar with them.
6 0
3 years ago
What are the three most important types of units in radiobiology? Explain the meaning of each.
Rom4ik [11]

Answer:

Most adverse health effects of radiation exposure may be grouped in two general categories:

deterministic effects (harmful tissue reactions) due in large part to the killing/ malfunction of cells following high doses; and

stochastic effects, i.e., cancer and heritable effects involving either cancer development in exposed individuals owing to mutation of somatic cells or heritable disease in their offspring owing to mutation of reproductive (germ)

4 0
3 years ago
A coin is dropped off of a building landing on its side. It hits with a pressure of 400/2 It hits with a force of 0.1 Calculate
Arte-miy333 [17]

Complete Question:

A coin is dropped off of a building landing on its side. It hits with a pressure of 400 N/m². It hits with a force of 0.1N. Calculate the area of the coin?

Answer:

Area = 0.00025 m²

Explanation:

Given the following data;

Pressure = 400N/m²

Force = 0.1N

To find the area of the coin;

Pressure = Force/area

Area = Force/pressure

Substituting into the equation, we have;

Area = 0.1/400

Area = 0.00025 m²

5 0
3 years ago
The study of the interaction of electrical and magnetic fields, and their interaction with matter, is called _____.
Dafna11 [192]
It is called Electromagnetism 
8 0
3 years ago
A go-kart and rider have a mass of 14 kg. If the cart accelerates at 6 m/s² during a 40 m sprint in 100 seconds, how much power
Nutka1998 [239]

Answer:

<em>P=33.6 \ W</em>

Explanation:

<u>Mechanical Work and Power</u>

Work is the amount of energy transferred by a force. It's a scalar quantity, with SI units of joules.

Being \vec F the force vector and \vec s the displacement vector, the work is calculated as:

W=\vec F\cdot \vec s

If both the force and displacement are parallel, then we can use the equivalent scalar formula:

W=F.s

Mechanical Power is the amount of energy transferred or converted per unit of time. The SI unit of power is the watt, equal to one joule per second.

The power can be calculated as:

\displaystyle P=\frac {W}{t}

Where W is the work and t is the time.

If an object of mass m has an acceleration a, the net force is:

F=m.a

The go-kart and rider have a mass of m=14 kg and accelerate at 6 m/s^2, thus the net force applied is:

F=14\cdot 6 = 84\ N

The work done by the cart when traveling d= 40 m is:

W=84\cdot 40

W=3,360\ J

Finally, the power for t= 100 seconds is:

\displaystyle P=\frac {3,360}{100}

P=33.6 \ W

5 0
3 years ago
Other questions:
  • Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 m/s. What is her momentum
    9·2 answers
  • Calculate the acceleration of an airplane that starts at rest and reaches a speed 45m/s in 9 seconds
    13·2 answers
  • Tell whether the following statements are true or false:
    13·1 answer
  • Lahat ay tumutukoy sa bugtong, maliban sa:
    15·1 answer
  • The National High Magnetic Field Laboratory once held the world record for creating the strongest magnetic field. Their largest
    5·1 answer
  • If a car is moving to the left with constantvelocity, one can conclude thatthere mustbe no forces applied to the car.the netforc
    5·1 answer
  • The unit of electrical current is the ampere (A).
    5·1 answer
  • What does HIPAA and FERPA stand for?
    15·2 answers
  • There is up to 30 times more gold in a tons of old mobile phones than in a tons of gold ore. true or false
    11·1 answer
  • Identify the wavelength of this wave.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!