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
gayaneshka [121]
2 years ago
11

In a typically constructed research study, the experimental group is selected:

Physics
1 answer:
blondinia [14]2 years ago
7 0

Answer:

D. from a separate pool than is the control group.

Explanation:

in the picture the person answers is backwards but...

hope this helps have a nice day

You might be interested in
Shadow and eclipses result from​
Basile [38]

\huge\mathsf{\red{\underline{\underline{Answer}}}}

{\green{\dashrightarrow}}When an opaque obstacle is placed between a source of light and a screen, a shadow of the obstacle is formed on the screen. The kind of shadow depends on the size of the source of light. In other words, the earth casts its shadow on the moon. The solar eclipse occurs when the moon comes between the sun and the earth.

7 0
3 years ago
Read 2 more answers
If a device uses 280 watts of power a day, about how many kilowatt-hours will it use in 30 days?
Novay_Z [31]

Answer:C

Explanation:

Power=280watts=280/1000 kilowatts

Power=0.28 kilowatts

Device use 0.28 kilowatts in 1 day

1day=24hours

Device use 0.28 kilowatts in 24hours

30days=30 x 24=720 hours

For 720 hours=(0.28x720) ➗ 24

For 720 hours=201.6 ➗ 24

For 720 hours=8.4

6 0
3 years ago
What terms are needed to completely describe velocity?
kotegsom [21]
In order to completely describe a velocity,
you need a speed and a direction.
4 0
3 years ago
What is the speed of a car traveling 100 m in 20 s?
Ludmilka [50]

Answer: To answer this question, we will need the following equation: SPEED = DISTANCE/TIME (A multiplication and division triangle will be shown)i) The speed of the car is calculated by doing 100 metres/ 20 seconds which gives us 5 metres per second. ii) Rearranging the equation earlier, we can make the distance the subject of the equation so that we get SPEED x TIME = DISTANCE. We worked out the speed and the time was given as 1 minute 40 seconds but we cannot plug in the numbers yet as the time has to be converted to units of seconds (because our speed is in meters per second). 1 minute 40 seconds = 60 seconds + 40 seconds = 100 secondsWe then plug in the numbers to get the distance travelled = 5 metres per second x 100 seconds = 500 metres.

Explanation:

3 0
2 years ago
James makes a treasure map to locate a secret item on McEachern Campus. He uses the
Inessa [10]

Answer:

south

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Help please I really need help in this one
    13·1 answer
  • How many states have 21 year old minimum drinking age laws
    5·1 answer
  • Melissa and David were playing on the tire swing that hangs from the big oak tree in their yard. While Melissa was sitting in th
    5·1 answer
  • A recipe for a sweet tea calls for 3 cups of sugar when you place a sugar into the tea it doesn't dissolve. How could you use di
    7·2 answers
  • a man stands on weighing scale in a lift which carries him upwards with acceleration, what happen please tell
    8·1 answer
  • The superheroine Xanaxa, who has a mass of 67.5 kg , is pursuing the 70.3 kg archvillain Lexlax. She leaps from the ground to th
    5·1 answer
  • What happens to the energy of gas particles when an elastic collision takes place?
    5·2 answers
  • The annoying sound from a mosquito is produced when it beats its wings at the average rate of 600 wingbeats per second. What is
    11·1 answer
  • Which colors of light represents the lowest visible frequency?
    14·1 answer
  • I need help with question ii) Calculate the speed of these radio waves.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!