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
Alona [7]
3 years ago
9

What is the rue of experimental designs that are used in scientific research?

Physics
1 answer:
Tema [17]3 years ago
8 0
There are three basic types of experimental research designs . ... True experimental designs are characterized by the random selection of participants and the random assignment of the participants to groups in the study. The researcher also has complete control over the extraneous variables.
You might be interested in
Abnormal protrusion of the eye out of the orbit is known as
kifflom [539]

Answer:

Exophthalmos

Explanation:

Exophthalmos is a disorder which can be either bilateral or unilateral. Sometimes it is also known by other names like Exophthalmus, Excophthamia, Exobitism.

It is basically the bulging of eye anterior out of orbit which if left unattended may result in eye openings even while sleeping consequently resulting in comeal dryness and damage which ultimately may lead to blindness.

It is commonly caused by trauma or swelling of eye surrounding tissues resulting from trauma.

7 0
3 years ago
An object that is magnetic all of the time is called a.
Novosadov [1.4K]

Answer:

Bar magnets are permanent magnets. This means that their magnetism is there all the time and cannot be turned on or off as it can with electromagnets .

Explanation:

5 0
2 years ago
Help me :DD i will mark u brainlist and u will get points and a thank u
Whitepunk [10]

Answer:

  • Energy flow is the flow of energy through living things within an ecosystem. All living organisms can be organized into producers and consumers, and those producers and consumers can further be organized into a food chain. Each of the levels within the food chain is a trophic level.

  • Radiation is energy that comes from a source and travels through space at the speed of light

  • Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break.
4 0
3 years ago
Increasing the concentration of greenhouse gases in Earth's atmosphere decreases the transparency of the atmosphere to infrared
kondaur [170]

Answer:

Decreases the transparency of the atmosphere to infrared light.

Explanation:

When a large amount of green-house gases are present in the atmosphere, the layer of these gases become opaque to infrared radiation and radiation from the sun get trapped into these gases molecules. These excited molecules radiate this energy into our own atmosphere and that why the temperature of Earth is rising due to the Green-House effect.

8 0
3 years ago
What is this answer
Katyanochek1 [597]
Answer: an ectomorph is a body type that struggles to gain weight and muscle
7 0
3 years ago
Read 2 more answers
Other questions:
  • A pendulum of mass 5.0 kg hangs in equilibrium. A frustrated student walks up to it and kicks the bob with a horizontal force of
    9·1 answer
  • Which phrases describe all the outer planets’ motion? Check all that apply.
    7·2 answers
  • Vector a s is 2.80 cm long and is 60.0° above the x-axis in the first quadrant. vector b s is 1.90 cm long and is 60.0° below th
    12·1 answer
  • When the mass of the bottle is 0.125 kg, the KE is______ kg m2/s2.
    5·1 answer
  • Surface tension ____. a. is the inward force which tends to minimize the surface area of a liquid b. may be increased by deterge
    11·1 answer
  • If the loop is then converted into a rectangular loop measuring 2.1cm on its shortest side in 6.50ms, and the average emf induce
    15·1 answer
  • Arrange the steps in order to describe what happens to a gas when it cools.
    6·1 answer
  • The kinetic energy of an object can sometimes be greater than a potential energy a originally possessed, true or false?
    7·2 answers
  • 1. As a group, write down two challenges in terms of sustainability you would face when developing a sustainable food supply for
    6·1 answer
  • Determine the launch speed of a horizontally launched projectile that lands 26.3m from the base of a 19.3m high cliff.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!