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
Mashcka [7]
2 years ago
12

What is the control group

Physics
1 answer:
kolbaska11 [484]2 years ago
8 0

Answer: the group in an experiment that doesn’t get treatment

Explanation:

You might be interested in
How much of the universe is believed to consist of ordinary atoms that can be detected?
Margaret [11]
The universe believed to be has no limit in space and the elements, molecules and different kind of gases are found in this area. So the percentage of that is believed that and ordinary atom can be detected is C. 3% i hope you understand my answer.
4 0
3 years ago
A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is
vitfil [10]

The acceleration of the sled will be 1.30 m/s². Force is defined as the product of mass and acceleration.

<h3>What is force?</h3>

Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body.

Given data;

m(mass of sled)=8 kg

Θ is the inclination of force= 50°

Force of friction,f=2.4 N.

The applied force at the given angle is resolved into the two-component as;

\rm F_h=F cos \theta \\\\ F_h= 20 cos 50 ^0 \\\\ F_h= 12.85 \ N

\rm F_v=F sin \theta \\\\  F_v=20 sin 50^0 \\\\   F_v=15.32 \ N

The net vertical force is zero;

\rm F_N=mg-Fsin50^0 \\\\ \rm F_N=8 \times 9.81 -15.32 \\\\ F_N=63.1 \ N \\\\

From Newton's second law the net force as;

\rm \sum F_{net}=ma \\\\ Fcos 60^0-f =ma \\\\ a=\frac{12.855-2.4}{8} \\\\a = 1.30 \ m/s^2

Hence, the acceleration of the sled will be 1.30 m/s².

To learn more about the force refer to the link;

brainly.com/question/26115859

#SPJ1

5 0
2 years ago
Read 2 more answers
As an object falls:
alex41 [277]

Answer:

c it is not accelerating on it's on but gravity pulls it there for velocity increases.

5 0
2 years ago
9. To completely describe the motion of an object, you need
pav-90 [236]
I think it’s D) all of the above
4 0
3 years ago
Read 2 more answers
Kenneth ran a marathon (26.2 miles) in 5.5 hours. What was Kenneth’s average speed? (Round your answer to the nearest tenth.)
pentagon [3]

Answer:

4.8mph

Explanation:

Speed= Distance/time

Speed= 26.2/5.5

= 4.76mph

( To the nearest tenth ) = 4.8mph

6 0
2 years ago
Read 2 more answers
Other questions:
  • A film of oil that has an index of refraction of 1.45 rests on an optically flat piece of glass of index of refraction n = 1.60.
    8·1 answer
  • Animal studies indicate that
    14·1 answer
  • A water gun fires 5 squirts per second. The speed of the squirts is 15 m/s.
    10·1 answer
  • The fast server in women's tennis is Venus Williams, who recorded a serve of 130   (209  ) in 2007.
    15·1 answer
  • If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is
    9·1 answer
  • When a cup is placed on a table, which force prevents the cup from falling to the ground?
    15·2 answers
  • What does a model of a light wave tell us about<br> brightness and color?
    6·1 answer
  • A physics instructor wants to project a spectrum of visible-light colors from 400 nm to 700 nm as part of a classroom demonstrat
    5·1 answer
  • What is the right hand rule for magnetic Force?
    12·1 answer
  • What is the electron dot diagram for magnesium oxide?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!