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
bezimeni [28]
4 years ago
7

How is a scientific theory different from a hypothesis? A theory is an explanation of a single phenomenon; a hypothesis is a que

stion that can be tested. B. A theory is a well-tested explanation; a hypothesis is a possible answer that needs to be tested. C. A theory and a hypothesis are both educated guesses, but a hypothesis is not proven. D. A theory explains a scientific law; a hypothesis explains a theory.
Physics
1 answer:
AleksAgata [21]4 years ago
3 0

its dddddddddddddddddddddddd

You might be interested in
How are emotional and intellectual health related
Tcecarenko [31]
A good way to think about mental and emotional health is like a tag team. Mental health refers to your ability to process information. Emotional health, on the other hand, refers to your ability to express feelings which are based upon the information you have processed.
8 0
3 years ago
Which of the following directly contributed to soil erosion on the Great Plains in the 1930s?
NISA [10]

Answer:

Farming  

Explanation:

There were three droughts in the 1930s.

Farmers had deep plowed the land and killed the native grasses that trapped soil and moisture.

During the droughts, the moisture evaporated, and the loose soil turned to dust.

4 0
4 years ago
Answer ASAP plz this is hard for me
PIT_PIT [208]
I think it will be B
7 0
3 years ago
Many scientists believe that the current period of global warming is related to increased levels of what?
tia_tia [17]
<span>In the question, "Many scientists believe that the current period of global warming is related to increased levels of what?" The correct answer is carbon dioxide. Global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants."</span>
8 0
3 years ago
A boy pulls a 28.0-kg box with a 230-N force at 35° above a horizontal surface. If the coefficient of kinetic friction between t
ddd [48]

Answer:

1977.696 J

Explanation:

Given;

Weight of the box = 28.0 kg

Force applied by the boy = 230 N

angle between the horizontal and the force = 35°

Therefore,

the horizontal component of the force = 230 × cosθ

= 230 × cos 35°

= 188.405 N

Coefficient of kinetic friction, μ = 0.24

Force by friction, f = μN

here,

N = Normal force = Mass × acceleration due to gravity

or

N = 28 × 9.81 = 274.68 N

therefore,

f = 0.24 × 274.68

or

f = 65.9232 N

Now,

work done by the boy, W₁ = 188.405 N × Displacement  

= 188.405 N × 30

= 5652.15 J

and,

the

work done by the friction, W₂ = - 65.9232 N × Displacement  

= - 65.9232 N × 30 m

= - 1977.696 J

[ since the friction force acts opposite to the direction of motion, therefore the workdone will be negative]

8 0
3 years ago
Other questions:
  • What changes the speed of light
    8·2 answers
  • Which statement describes absolute and apparent brightness?
    14·2 answers
  • in positive numbers less than 1, the zeros between the decimal point and non zero are _____ significant ​
    8·1 answer
  • One heater uses 310 W of power when connected by itself to a battery. Another heater uses 180 W of power when connected by itsel
    14·2 answers
  • Your favorite cousin, who is 20 years old, has just been diagnosed with type 2 diabetes. He is overweight and spends most of his
    5·1 answer
  • Why will a sheet of paper fall slower than one that is crumbled into a ball
    6·2 answers
  • All questions and answer on ptessure​
    6·1 answer
  • Photons with the highest energy have the ____
    11·1 answer
  • A 100-g block slides back and forth on a frictionless surface between two springs, as shown in Fig. 7.18. The left-hand spring h
    7·1 answer
  • As a result of friction, the angular speed of a wheel changes with time according to dθ/dt = ω0e^−σt where ω0 and σ are constant
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!