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
ZanzabumX [31]
3 years ago
5

Please help with this science question and please explain if you can! I'm so confused

Physics
1 answer:
forsale [732]3 years ago
8 0
In this experiment, the independent variable is the surface, the dependant variable is the distance one end of the surface must be lifted to see movement of the object, and the control variable is the object. Since the surface height at one end is changed and the object is kept the same, the only conclusion that can be made is whether the surface has an effect on the force of friction. Of course, basic physics tells you that it does, therefore A is correct.
You might be interested in
The two types of waves are ……………………………………wave and …………………………
Annette [7]

Answer:

longitudinal and transverse.

Explanation:

plzzzzzzz Mark my answer in brainlist

4 0
2 years ago
When Trinity pulls on the rope with her weight, Newton's Third Law of Motion tells us that the rope will _____
Bingel [31]

When Trinity pulls on the rope with her weight, Newton's Third Law of Motion tells us that the rope will <u>"pull back".</u>


Newton's third law of motion expresses that, at whatever point a first question applies a power on a second object, the first object encounters a power meet in extent however inverse in heading to the power that it applies.  

Newton's third law of movement reveals to us that powers dependably happen in sets, and one question can't apply a power on another without encountering a similar quality power consequently. We once in a while allude to these power matches as "action-reaction" sets, where the power applied is the activity, and the power experienced in kind is the response (despite the fact that which will be which relies upon your perspective).

6 0
3 years ago
Read 2 more answers
Hi:)!!!!!!!!!!!!!!!!!!!!! Hi
Over [174]

Answer:

hello, how are u?

Explanation:

jsjsjxkkeemmd

7 0
3 years ago
Read 2 more answers
Which of the following paths, shown below, might light follow when passing from below water into the air?
Lelu [443]
B Because I am I really really really really really….. be it is B i am latina
6 0
3 years ago
A 3 kg toy car with a speed of 7 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 5 m/s.
Mademuasel [1]

Answers:

kinetic energy lost = 86.4J

Explanation:

let Kf be the kinetic energy after the collision and Ki be the kinetic energy before the collision. let the 3kg car be 1 and 2kg car be 2.

Kf = K1(f) + K2(f)

Ki = K1(i) + k2(i)

loss in kinetic energy = Kf - Ki

                                 = 1/2(3)(2.20)^2 + 1/2(2)(2.20)^2 - 1/2(3)(7)^2 - 1/2(2)(-5)^2

                                 = 12.1 - 98.5

                                 = -86.4 J

therefore, the kinetic energy lost in the collision is 86.4 J.

6 0
3 years ago
Other questions:
  • What is the kinetic energy of a 8kg cat running 5m/s?
    5·1 answer
  • A grindstone in the shape of a solid disk with a diameter of 1.0 m and a mass of 50.0 kg, is rotating at 900 rev/min. A tool is
    15·1 answer
  • As an object is undergoing free fall motion.As it falls the objects?,speed increases,acceleration increases,both of these,or non
    10·1 answer
  • Explain what cell theory is. Describe the history behind cell theory and the
    10·1 answer
  • Which is a FALSE statement about elements? Select one: a. Each element has its own neutron number. b. Each element has its own a
    9·1 answer
  • How many discovered planets are there
    15·1 answer
  • Please answer my question
    6·2 answers
  • 4. A steel rod is 5 cm x 5 cm x 120 cm. If steel has a density of 7.80 g/cm', what is the
    6·1 answer
  • The primary gas in a volcano is: carbon dioxide, sulfur dioxide, water vapor, nitrogen.
    8·2 answers
  • Convert the decimal number 61078 to binary by using sum-of-weights method​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!