___________ telescopes are the cheapest and easiest to produce.
A.
Refracting
B.
Reflecting

Answers

Answer 1

Answer:

B reflecting

have a great day

Answer 2

Answer: Its B

Explanation: I just took the test


Related Questions

Countries around the world are trying to slow down or reverse the effects of climate change. Based on what you know about the greenhouse effect, which of the following actions would be likely to slow the rise in Earth's average temperature?

Answers

Answer:

Greenhouse gases would warm the earth up causing global warming

Explanation:

To solve this we must be knowing each and every concept related to greenhouse effect. Therefore, greenhouse effect would be likely to slow the rise in Earth's average temperature.

What is greenhouse effect?

The Earth's surface is heated by the greenhouse effect all the way up to the troposphere. Higher concentrations of methane, carbon dioxide, and other gases cause it to occur.

The energy from the sun's heat is reflected back into space as infrared radiation when the Earth's surface cools. The concentrated gases inside the greenhouse effect absorb energy, raising the earth's temperature as a result. Thus, there is a link between the global warming and the greenhouse effect. Greenhouse effect would be likely to slow the rise in Earth's average temperature.

Therefore, greenhouse effect would be likely to slow the rise in Earth's average temperature.

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What is the outcome (dependent) variable in this experiment?
A. The types of materials
B. The number of lightbulbs
C. The number of amps
D. The type of battery

Answers

Answer:

I believe it's B, the number of lightbulbs.

Explanation:

The other things in the question flow INTO the lightbulb. The outcome is the lightbulb after the other items being used to do something to the lightbulb, and the outcome is whatever happens to it.

I believe it is C because the better material that conducts electricity the stronger the amperage is Which would be dependent of the material

At the top of its swing, a pendulum has zero kinetic energy. How much potential energy does it have at the bottom of its swing?



A.
maximum
B.
1/2 as much
C.
1/4 as much
D.
zero

Answers

It’s D as it’s reached the bottom the potential Energy is converted into kinetic energy

At the bottom of its swing, it has the lowest potential energy. Option D is correct.

What is potential energy?

Potential energy is the energy stored in an object due to its position relative to other objects.

Here,
At the top of its swing, a pendulum has zero potential energy. At the bottom of its swing, it has the lowest potential energy.

In the case of a pendulum, potential energy is stored in the pendulum due to its position relative to the Earth. The higher the pendulum is, the more potential energy it has, and the lower it is, the less potential energy it has.

At the bottom of its swing, the pendulum is at its lowest point, so it has the lowest amount of potential energy. Thus, the answer is D) Zero.

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Complete the passage:

During the process of polymerization, __
combine by sharing electrons. This process forms a __
, which is made of repeating subunits. The resulting material is used in a variety of ways.

Answers

They co operation that’s your Ana

what is the difference between 951 gaspra and the moon

Answers

Answer:

951 Gaspra orbits the Sun near the inner edge of the main asteroid belt between Mars and Jupiter. Gaspra was named by its discoverer Neujmin for a resort on the Crimean peninsula. Consequently, many of the asteroid's craters have been named for resorts and spas worldwide.

Explanation:

Please help me. I neeedd itttttttttt.

Answers

5 , 10 , 15 , I think it is

Read the statements.

Water bears are microscopic animals. When water bears are exposed to a vacuum of space, about 30% of them can survive.

A scientist is doing an experiment on water bears and vacuum exposure.

Which option is a prediction that relates the outcome of the scientist’s experiments with probability?


1. The scientist thinks water bears can survive vacuum exposure because they have little water in their bodies.

2. The scientist thinks that under some conditions, up to 40% of the water bears can survive.

3. The scientist thinks that there is a 15% chance that he will receive funding for more research.

4. The scientist thinks that other animals can also survive vacuum exposure.

Answers

Answer:

I would number 1

Explanation:

Tiny invertebrates called ‘water bears’ can survive in the vacuum of space, a European Space Agency experiment has shown. They are the first animals known to be able to survive the harsh combination of low pressure and intense radiation found in space.

Water bears, also known as tardigrades, are known for their virtual indestructibility on Earth. The creatures can survive intense pressures, huge doses of radiation, and years of being dried out.

This is some old research found about them hope u can find something from these two paragraphs.

The scientist thinks water bears can survive vacuum exposure because they have little water in their bodies. Hence, option  (1) is a prediction that relates the outcome of the scientist’s experiments with probability.

What is water bear or Tardigrade?

Tardigrades are a phylum of eight-legged segmented micro-animals, also known as water bears or moss piglets. Johann August Ephraim Goeze, a German biologist, initially identified them as Kleiner Wasserbär in 1773. ("little water bear"). They were given the Tardigrada moniker in 1777 by the Italian naturalist Lazzaro Spallanzani, which translates to "slow steppers."

They have been discovered in many different biospheres on Earth, including the Antarctic, deep water, tropical rainforests, and mountaintops. Individual species of tardigrades may endure extreme conditions that would swiftly kill most other known forms of life, including exposure to extreme temperatures, extreme pressures (both high and low), air deprivation, radiation, dehydration, and malnutrition. Even in space, tardigrades have managed to survive.

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The law that validates your answer is the law of (blank) , which states that (Blank)
.

Answers

They’re multiple correct responses for this one bud. More context.
Add the answers?? There multiple right?

According to the picture, what is the truck doing?



The truck is experiencing negative acceleration.

The truck is experiencing zero acceleration

The truck is experiencing positive acceleration

The truck is slowing down.

Answers

Answer:

The truck is experiancing negitive accleration

Explanation:

it is slowing down

Answer:

the truck is experiencing negative a veleration

A block kept on a frictionless horizontal surface is acted upon by a force of 100 N, as shown in the figure. What magnitude of force must be applied on the block from the opposite direction to stop its motion?

blocksmooth

A.
50 N
B.
75 N
C.
100 N
D.
200 N

Answers

Answer: I did this before in school but I’m not too clear. I do think it’s 100N.

Correct me if I’m wrong :}

Answer:

The answer will be C

Explanation:

PLEASE SCREENSHOT AND MARKUP

Answers

Have you found the answer?

Which of the following is not an extensive physical property? (3 points)
1. Volume
2. Mass
3. Length
4. Color plz help :(

Answers

Answer:

It is color 4 branliest?

Answer:

D. Color

My explanation for this answer is that Color is for atomic mass, so my answer is D. Color

Hope this Helps you !

Explanation:

Your friend says that when someone drives a car, they use up energy. You know that this isn’t quite true. Develop an argument against your friend’s claim that uses scientific evidence. Be sure to include the vocabulary: energy transformation, Law of Conservation of Energy.

Answers

Answer:

Only about 12%–30% of the energy from the fuel you put in a conventional vehicle is used to move it down the road, depending on the drive cycle.

Explanation:

You can say that the law of the conservation of energy states that energy cannot be created or destroyed only transferred. therefore the energy your friend said is used up is just simply transferred into other forms of energy

There were many different microorganisms on the pillows. Dr. Tierno stated that these germs were probably causing the kids to have allergy symptoms.

The results of an experiment often prompt new questions that further scientific investigation can answer. From the results of this experiment, name one new question that a new experiment can answer.

Answers

Answer:

What kinds of microorganisms were found on the pillow and what kinds of allergy symptoms were caused by these microorganisms?


Yes because it spread

A ___________ is any object that circles Earth or another body in space.

Answers

Answer:

satellite

Explanation:

this is what I think the answer is

Answer : satellite
Explanation: A satellite can be natural, like Earth or the moon. Many planets have moons that orbit them

True or False: The only type of satellites in Earth's orbit are natural satellites.

Answers

False, there are also artificial satellites.

Answer:

False

Explanation:

There are also artificial types of satellites in the orbit

PLS MARK BRAINLIEST

Complete this sentence. The melting point of a sample will ____________ when the size of the sample increases. (3 points)
1. decrease
2. increase
3.stay the same
4. be unable to be determined

Answers

Answer:

Answer is Option 1. decreases

It will decrease because it will take more to melt.

A student conducts an experimenting to test how the temperature of a ball affects its bounce height. The same ball is used for each test, and the ball is dropped from the same height each time what is the independent variable

Answers

the independent variable is what you're testing or changing in an experiment, so the answer is the temperature of the ball when its dropped.

i hope that helped <3

Independent variable = the thing you change.
Here the independent variable is the temperature of the ball

What would an effective conclusion need to include? (science)

Answers

Answer:

How did your experiment go. Did it go as planned? Did it go wrong? What would you do differently the next time? Did your hypothesis include what happened in the experiment?

Explanation:

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