Can someone help me on 2 science question,this is what they say
1. A teacher challenges.students to study moon phases to determine if what they have learned from the textbook is accurate. How might a student investigate claims made in a textbook that moo. phases occur in a 28-day cycle?
A. observe the phase of the moon each night until a full moon can be seen.
B. Compare the textbook phases to the actual moon phases seen in the night sky each night in 28 days periods over a three month time frame.
C. Compare diagrams of moon phases from the textbook to diagrams of moon phases on-line
D. Observe the moon phases seen in the night sky as often as possible over a six month period.
2. What causes the apperance of the moon change overtime?
A. The orbit of the Earth around the Moon and its distance from the sun.
B.The Moons position relative to the sun and earth as it revolves around sun.
C. the rotation of the moon on its axis
D. The distance of the moon to the sun
thank you
Answers
2.The answer 2 ur secound question is B.The Moons position relative to the sun and earth as it revolves around sun.
Answer:c
Explanation:
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From this diagram which of the following can you conclude
Referencing the product below, what is one serving size in cups? Brown rice: 20 cups of rice per container Servings per container: 40
What is the relationship between mutation, natural selection, and adaption
This experiment is to see if water flows faster out of a smaller can or a larger can. You will need: • two cans (one quite small like a soup can and the other large, like a juice, can.)Follow these steps: A. Remove the top of each can. Punch a hole in the side of each can, very close to the bottom, making sure the holes are equal in size. Cover each hole with a piece of tape, and place the cans next to the sink.B. Put water in both cans, making sure the water is at the same level - different amounts, but the same level. Turn the cans so the holes are facing into the sink, and remove the tape at the same time. Answer these questions: Do the streams of water shoot out at the same distance? Why or why not?C. Try the same experiment, but this time put one cup of water in each can. What happens to the streams of water now?D. Try the same experiment, but this time fill both cans to the top. What happens to the streams of water?ANSWER A B C AND D CORRECTLY!!!
- is refracted when it bounces off a shiny surface
-is created by vibrations in electric and magnetic fields
-moves in longitudinal waves
Answers
Light is created by vibrations in electric and magnetic fields because the light is an electromagnetic wave, therefore the correct answer is option C
What is an electromagnetic wave?
The oscillation of an electric field and a magnetic field produces electromagnetic waves, which are waves. In other words, electromagnetic waves (EM waves) are made up of vibrating magnetic and electric fields that are orthogonal to one another.
It is undeniable that we experience solar radiation, which is an electromagnetic wave that originates from the sun and can travel through space to the planet.
Light is a form of electromagnetic which is made up of the electric and magnetic filed that are orthogonal to each other, light can travel without any medium.
Thus, Light is created by vibrations in electric and magnetic fields, because the light is an electromagnetic wave, therefore the correct answer is option C
Learn more about Electromagnetic waves from here
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Answer:
b
Explanation:
light does not need a medium
it is refracted
Light is made up of little packets of energy called photons.
electromagnetic waves
Answers
The gravitational force on the second satellite is 1/8 of the force exerted on the 1st satellite.
Explanation:
The magnitude of the gravitational force exerted by the Earth on the satellite is given by:
where
G is the gravitational constant
M is the Earth's mass
m is the mass of the satellite
r is the radius of the orbit of the satellite
Let's call F the gravitational force on the first satellite, of mass m, with an orbit of radius r.
The second satellite has mass
and the radius of its orbit is
So, the gravitational force exerted on the second satellite is
Therefore, the force on the second satellite is 1/8 of the force exerted on the 1st satellite.
Learn more about gravitational force:
#LearnwithBrainly
Answers
Answer:
Where is this image?
Answers
numbers of electrons.
-- When electrons bunch up and stay in one place, you have static electricity.
-- When electrons flow from one place to another, that's electric current.
Difference - Static electricity is stable; it does not flow. Current is not stable and flows in the medium.
Answers
Answer:
Mechanical energy
Explanation:
The mechanical energy in a mechanical system is the summation of its kinetic energy and its potential energy.
Mechanical Energy= Potential Energy +Kinetic energy
Potential energy is defined as the energy stored in a stable object and kinetic energy is defined as the energy of a moving object or energy required in the motion of a object.
Answer:
mechanical energy
Explanation:
i believe thats the answer hope that helps