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
myrzilka [38]
3 years ago
8

A researcher is interested in exploring the effects of exposure to ultraviolet light on people’s emotional state. He divides his

participants into three groups. The first group receives 40 minutes of ultraviolet light 3 times a week, the second group receives 20 minutes of ultraviolet light 3 times a week, and the third group receives no ultraviolet light. Tell me which group(s) were in the control group, and which were in the experimental group. (You can simply delete the incorrect answer for each group. So, for example, if you think the answer to group one is "control," you can simply delete the word "experimental" after group one)
Group One: Experimental Control

Group Two: Experimental Control

Group Three: Experimental Control
Physics
1 answer:
bekas [8.4K]3 years ago
4 0

Answer:

Explanation:

In an experimental research, the control group is the group that serves as the neutral group that is not given any form of treatment and serves as the group in which the experimental groups are firstly compared to. Thus, <u>the control group in the question described is the Third group</u>.

While experimental groups are the groups that receive treatments required to make an inference from the experiment. From this description, <u>it can be deduced that the First and the Second group are the experimental groups.</u>

You might be interested in
Help please ASAP ONLY 1 question
Tasya [4]
C!! A brick to a house
5 0
3 years ago
Can someone explain what is loss of seismic energy ?
xxTIMURxx [149]

Answer:

Seismic attenuation describes the energy loss experienced by seismic waves as they propagate. It is controlled by the temperature, composition, melt content, and volatile content of the rocks through which the waves travel.

Explanation:

5 0
3 years ago
A scientist designed a foam container to help keep frozen foods from melting. Which best explains how the foam works? It removes
Allushta [10]

Answer:

the foam an insulator............

6 0
3 years ago
A person holding a lunch bag is moving upward in a hot air balloon at a constant speed of 7.3 m/s . When the balloon is 24 m abo
Kitty [74]

Explanation:

Given that,

Initial speed of the bag, u = 7.3 m/s

Height above ground, s = 24 m

We need to find the speed of the bag just before it reaches the ground. It can be calculated using third equation of motion as :

v^2=u^2+2as

v^2=(7.3)^2+2\times 9.8\times 24  

v=\sqrt{523.69}

v = 22.88 m/s

So, the speed of the bag just before it reaches the ground is 22.38 m/s. Hence, this is the required solution.

8 0
3 years ago
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the f
jonny [76]

Answer:

<em>Entropy Change = 0.559 Times</em>

Explanation:

Entropy change is determined by the change in the micro-states of a system. As we know that the micro-states are the same as measure of disorderness between initial and final states, that's the the amount of change in micro-states determine how much of entropy has changed in the system.

5 0
3 years ago
Other questions:
  • What role will robots play in our future?
    11·2 answers
  • A polystyrene component must not fail when a tensile stress of 1.25 MPa (180 psi) is applied. Determine the maximum allowable su
    14·2 answers
  • A laptop computer draws 5 A of current with a voltage of 19 V. Which is the power used by the computer?
    13·2 answers
  • If a projectile was launched at an angle of 13 degrees above the ground and hit its target 14.3 m away, what was the projectile'
    11·1 answer
  • Does melting change substances into other substances?
    7·2 answers
  • The main difference between speed and velocity involves
    13·1 answer
  • Calculate the work done when a 10 N force pushes against a cart 4.0 m
    15·2 answers
  • how do i find out the maximum speed and things? also, if you can give the answer and tell me why that would be amazing!!
    8·1 answer
  • a worker in a factory has discovered a material that is very confusing.it can be stored in a container but it can also flow from
    9·1 answer
  • two circular plates, each with a radius of 8.22 cm, have equal and opposite charges of magnitude 3.052 μc. calculate the electri
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!