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
Nikolay [14]
4 years ago
12

A research student wants to know whether ethanol is a better fuel than gasoline. Which step in the process of scientific inquiry

has already been completed?
Physics
2 answers:
DerKrebs [107]4 years ago
4 0

Answer:

Asking a scientific question

Explanation:

tigry1 [53]4 years ago
3 0

Answer:

Asking a scientific question

Explanation:

Scientific inquiry is using evidence from observations and investigations to create logical explanations and answer questions. Scientific inquiry is for people who want to be challenged and use creative and critical thinking to answer questions related to science.

The scientific method has five basic steps;

1. Ask a Question (just like the research student asking which is a better fuel between ethanol and gasoline)

2. Do Background Research

3. Construct a Hypothesis

4. Test Your Hypothesis by Doing an Experiment

5. Analyze Your Data and Draw a Conclusion

You might be interested in
A car is left overnight in a parking lot. What is its instantaneous speed at 12:01 a.m.?​
STatiana [176]

Answer:

0 mph

Explanation:

4 0
3 years ago
Read 2 more answers
Achargingbullelephantwithamassof5240kgcomesdi- rectly toward you with a speed of 4.55 m/s. You toss a 0.150-kg rubber ball at th
Ierofanga [76]

Answer:

Given:

Mass of elephant = 5240 kg

The initial speed of the elephant = 4.55 m/s

Mass of the rubber ball, m, = 0.15 kg

Inital speed of the rubber ball, v = 7.81 m/s

On substitution  in V_{2f} = [\frac{2m_{1} }{m_{1} +m_{2} } ]V_{1f} + [\frac{m_{2}-m_{1}}{m_{1}+m_{2}  } ] v_{2f}

V_{2f} = [\frac{2*5240_{} }{5240_{} +0.15_{} } ](-4.55_{}) + [\frac{0.15_{}-5240_{}}{5240_{}+0.15_{}  } ] (7.81_{})

a) The negatıve sign shows that the ball bounces back in the direction opposite  to the incident

b)  it is clear that the velocity of the ball increases and therefore it is kinetic energy . The ball gains kinetic energy from the elephant.

8 0
3 years ago
What happens to momentum during a collision?...i give brainliest
Vlada [557]

Answer:

Momentum is the product of a moving object's mass and velocity . ... When two objects collide the total momentum before the collision is equal to the total momentum after the collision (in the absence of external forces). This is the law of conservation of momentum. It is true for all collisions.

Explanation:

7 0
3 years ago
What formula gives the strength of an electric field, E, at a distance from a known source charge?
Deffense [45]
<h2>Hello!</h2>

The answer is: Coulomb's law equation.

<h2>Why?</h2>

The Coulomb's law states that the strength of an electric field (between two charges) can be calculated by multiplying their charges and dividing it into the square of the distance between their centers.

E=\frac{k*q*Q}{d^{2} }

Where:

E = Electric Field Strenght

k=9.0*10^{9}  \frac{N.m^{2} }{C^{2} }

q=TestCharge\\Q=SourceCharge\\

d = separation between charges (m)

Have a nice day!

5 0
4 years ago
Read 2 more answers
How does the sun's energy travel to Earth?
Elena-2011 [213]

Answer: The sun’s radiation consists of small, massless packets of energy called photons. They travel seamlessly through space; whenever they strike any object, the object absorbs photons and its energy is increased, which then heats it up.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • 3. Which of the following is an ionic compound?
    12·1 answer
  • There's my problem PLEASE HELP
    14·2 answers
  • Energy is a physical quantity with properties somewhat similar to what other quantity?
    5·1 answer
  • If you kick a ball, you apply an impulse. The impulse is equal to
    11·1 answer
  • 1. Question
    10·1 answer
  • A 125 g snowball is traveling with a speed of 22 m/s when it hits the fence. If the snowball is completely stopped by the fence
    13·1 answer
  • As the launch force increase the launch velocity will
    15·1 answer
  • DESPERATE WILL GIVE BRAINLIST AND THANKS
    6·1 answer
  • What are some ways scientists can study the seafloor?
    8·2 answers
  • I NEED THIS ASAP I WILL MARK YOU THE BRAINLIEST LINKS WILL BE REPORTED
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!