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
patriot [66]
3 years ago
6

Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusio

n. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables.
Physics
2 answers:
9966 [12]3 years ago
8 0

Answer:

Hello,

The answer would be the first choice, "They both include a question, procedure and conclusion."

anyanavicka [17]3 years ago
5 0

Answer:

<h2>They both include a question, procedure and conclusion.</h2>

Explanation:

Both type of investigations include a question, procedure and conclusion. Actually, <em>these three elements are standard for any type of investigation.</em>

All investigation are developed based on a problematic situation which defines a question, that the investigator seek to answer. In the attempt of answering, he develop several procedure according to the methodology of the investigation, that is, a descriptive and comparative investigation have different procedures, to seek a similar purpose, to answer the question.

After developing all procedures needed according to the methodology, a conclusion is made, based on the facts from the procedure. This conclusion is the actual attempt to answer the question, having two possible outcomes, or the problem in the question is solved, or just the procedure and methodology couldn't do it that far.

En resume, those are elements of both type of investigation.

Therefore, the right answer is the first one.

You might be interested in
How realistic is the science behind the movie inception
LiRa [457]
Its fake some of its real like the space part and the traveling through space part but not the multi dimensional stuff

5 0
3 years ago
Read 2 more answers
Which statement correctly describes the differences between positive and negative acceleration?
IceJOKER [234]

Answer: c) Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.

Hey

On Earth, you can move or you can not move. if you are moving 50 mph that means relative to Earth (not the Andromeda galaxy). When you start moving (accelerating) you are now moving relative to Earth. when you start slowing down (decelerating [most scientists just say you have negative acceleration]) you are starting to match your velocity to Earth's velocity.

Hope it helped and made any sence at all.

Spiky bob your answerer.

3 0
3 years ago
The 2 question are on the photo above.
AlekseyPX
A. power plants burn coal. A fossil-fuel power plant is one that burns fossil fuels such as coal, natural gas or petroleum (oil) to produce electricity.

b. Fossil fuels are called so because they have been derived from fossils, which were formed millions of years ago during the time of the dinosaurs. They are fossilized organic remains that over millions of years have been converted to oil, gas, and coal.

C. they are generally classified as non-renewable resources because they take millions of years to form and known viable reserves are being depleted much faster than new ones are generated.

5.
a. Gravitational potential energy and work done
If an object is lifted, work is done against the force of gravity.
When work is done energy is transferred to the object and it gains gravitational potential energy.
If the object falls from that height, the same amount of work would have to be done by the force of gravity to bring it back to the Earth’s surface.
If an object at a certain height has 2000 J of gravitational potential energy, we can say that:
2000 J of work has been done in getting the object to that height from the ground
and
2000 J of work would have to be done to bring it back to the ground.
3 0
3 years ago
What is the magnitude (in N/C) and direction of an electric field that exerts a 3.50 ✕ 10−5 N upward force on a −1.55 µC charge?
IRISSAK [1]

Answer:

The magnitude of electric field is  22.58 N/C

Solution:

Given:

Force exerted in upward direction, \vec{F_{up}} = 3.50\times 10^{- 5} N

Charge, Q = - 1.55\micro C = - 1.55\times 10^{- 6} C

Now, we know by Coulomb's law,

F_{e} = \frac{1}{4\pi\epsilon_{o}\frac{Qq}{R^{2}}

Also,

Electric field, E = \frac{1}{4\pi\epsilon_{o}\frac{q}{R^{2}}

Thus from these two relations, we can deduce:

F = QE

Therefore, in the question:

\vec{E} = \frac{\vec F_{up}}{Q}

\vec{E} = \frac{3.50\times 10^{- 5}}{- 1.55\times 10^{- 6}}

\vec{E} = - 22.58 N/C

Here, the negative side is indicative of the Electric field acting in the opposite direction, i.e., downward direction.

The magnitude of the electric field is:

|\vec{E}| = 22.58\ N/C

6 0
3 years ago
Which energy resources are found above the Earth's surface​
never [62]

Answer: the sun

Explanation:

The sun's radiant energy reaches the earth's surface either directly through radiation, indirectly through convection, or it can move "across" or "through" objects or materials on the surface via conduction. Let's look more closely at each case. We've probably experienced the feeling of "warmth" of the sun on our skin on a sunny day. Light energy from the sun is reaching us across space and down through the atmosphere through radiation. A dark colored vehicle in the sun quickly becomes warm (or hot!) to the touch because of radiation. The light energy from the sun heats the air in the earth's atmosphere, and this drives convection and transfers thermal energy around. It is possible that we've felt a "hot breeze" on our skin on sunny days. The thermal energy in the air will be carried to objects in its path, and it will warm them.

6 0
3 years ago
Other questions:
  • An aircraft engine takes in 9000 j of heat and discards 6400 j each cycle. (a) what is the mechanical work output of the engine
    15·1 answer
  • An oxygen atom at a particular site within a DNA molecule can be made to execute simple harmonic motion when illuminated by infr
    5·1 answer
  • A uniform, solid cylinder of radius 5 cm and mass of 3 kg starts from rest at the top of an inclined plane that is 2 meters long
    6·1 answer
  • A 970-kg sports car collides into the rear end of a 2300-kg SUV stopped at a red light. The bumpers lock, the brakes are locked,
    10·1 answer
  • A long straight wire carries a current of 51.7 A. An electron, traveling at 7.43 × 10^7 m/s, is 5.76 cm from the wire.
    8·1 answer
  • They enjoy being alone for quit small time​
    15·1 answer
  • Is it true or false that it is never sensible to calculate more than 100% of a number​
    8·1 answer
  • I will give 50 pts and brainliest
    8·1 answer
  • An astronaut weighs 200 N on the Moon where gravity is 1.62 m/s/s. Find his weight on Earth. HELP PLEASE FAST
    7·1 answer
  • why is the freezer compartment of a refrigerator kept at the top in terms of conduction convection and radiation​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!