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
liberstina [14]
3 years ago
9

The purpose of the control group is to

Physics
2 answers:
pogonyaev3 years ago
5 0
Have everything in control and in order and discuss about different issues.
maxonik [38]3 years ago
4 0
A researcher must only measure one variable at a time, and using a scientific control group gives reliable baseline data to compare their results with. For example, a medical study will use two groups, giving one set of patients the real medicine and the other a placebo, in order to rule out the placebo effect.
You might be interested in
An object 4 cm high is placed 20 cm in front of a convex lens of focal length 12 cm. What is the position and height of the imag
aleksandrvk [35]
It would be 12cm

hope this helps

6 0
3 years ago
Parker wound a wire around a large iron nail. He then created an electromagnet by connecting the ends of the wire to different b
padilas [110]
The correct option is C.
From the information given above, one can easily conclude that electromagnetic Y is the strongest because, it produces the higher amount of current compare to the other electromagnets. Electromagnet W is the weakest because it produces the lowest amount of current. 
3 0
3 years ago
Read 2 more answers
An atom that has a negative four charge will have which of the following? Question 1 options: 4 more protons than electrons An e
Lilit [14]
Electrons: negative charge
Protons: positive charge
Neutrons: negative charge

The atom would have to have more electrons than protons

Hope this helps :)
3 0
3 years ago
Why was Thompson's Plum pudding model a significant departure from previous models?
PSYCHO15rus [73]

Answer:

Thomson's cathode-ray tube experiments led him to develop the plum-pudding model, which stated that each atom had positively charged particles spread throughout its negatively charged matter. Reword the statement so it is true. ... More alpha particles were deflected than he expected.

Explanation:

Well.. I hope it helps you..

Just correct me if I'm wrong..

5 0
3 years ago
The element copper has 29 protons. What is the atomic number of copper?
photoshop1234 [79]
The number of protons an element has is its atomic number so the atomic number would be 29
8 0
3 years ago
Other questions:
  • Electron groups consist of which of the following? A.Bonded pairs of electrons B.Lone-pair electrons C.Any atom that's an ion D.
    6·1 answer
  • If the mass of a material is 48 grams and the volume of the material is 8 cm^3, what would the density of the material be?
    8·1 answer
  • A rock weighs 30 n on earth and another rock weighs 30 n on the moon. which rock has the greater mass?
    15·1 answer
  • A roller coaster starts from rest at point a and continues to point b on a frictionless track. what best describes the changes i
    9·2 answers
  • What spheres are part of the earths system​
    10·2 answers
  • When exercising, which hormone level decreases in females often causing a better mood?
    14·1 answer
  • ​A hose, of radius 0.018 m, is connected to a water faucet. The water pressure at the point where the hose connects to the fauce
    11·1 answer
  • An experiment was performed to determine how the amount of coffee grounds could affect the taste of coffee. The same kind of cof
    15·1 answer
  • An elevator is being pulled up from the ground floor to the third floor by a cable. The cable is exerting 4500 newtons of force
    13·1 answer
  • A TMS (transcranial magnetic stimulation) device creates very rapidly changing magnetic fields. The field near a typical pulsed-
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!