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
Anon25 [30]
3 years ago
6

After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scie

ntists to make sure that the data is real? A. interviewing the researchers B. comparing the data to older research C. conducting the experiment again D. reading the experiment’s procedure
Physics
2 answers:
Oduvanchick [21]3 years ago
6 0
I think it's c , but I'm not sure though
slavikrds [6]3 years ago
6 0

Answer: C. Conducting the experiment again.

Explanation:

The new research and innovation in the field of science has become common with the improvement in technology and expansion of the scientific knowledge. The validity and reliability of the new research can be determined by the peer review and finding the errors, by following the same research methodology that has been used in the new research and comparing the results.

Conducting the experiment again is the correct option. As this involves the implementation of the same methodology used for the purpose of the experiment. If the data of the experiment matches with that of the new experiment than the data can be considered as valid and real.

You might be interested in
Which copper wire would have the lowest resistance?
Ronch [10]
B. The resistance is directly proportional to length and inversely proportional to cross sectional area
6 0
2 years ago
Read 2 more answers
A wheel starts from rest and has an angular acceleration that is given by α (t) = (6.0 rad/s4)t2. After it has turned through 10
marissa [1.9K]

Answer:

75 rad/s

Explanation:

The angular acceleration is the time rate of change of angular velocity. It is given by the formula:

α(t) = d/dt[ω(t)]

Hence: ω(t) = ∫a(t) dt

Also, angular velocity is the time rate of change of displacement. It is given by:

ω(t) = d/dt[θ(t)]

θ(t) = ∫w(t) dt

θ(t) = ∫∫α(t) dtdt

Given that: α (t) = (6.0 rad/s4)t² = 6t² rad/s⁴. Hence:

θ(t) = ∫∫α(t) dtdt

θ(t) = ∫∫6t² dtdt =∫[∫6t² dt]dt

θ(t) = ∫[2t³]dt = t⁴/2 rad

θ(t) = t⁴/2 rad

At θ(t) = 10 rev = (10 *  2π) rad = 20π rad, we can find t:

20π = t⁴/2

40π = t⁴

t = ⁴√40π

t = 3.348 s

ω(t) = ∫α(t) dt = ∫6t² dt = 2t³

ω(t) = 2t³

ω(3.348) = 2(3.348)³ = 75 rad/s

7 0
3 years ago
Use Newton's laws to explain why a falling object dropped from a 57m tower accelerates initially but then reaches constant veloc
snow_lady [41]

Answer:

At the point of dropping the object, by Newton's first law due to gravitational force F_g = m × g, accelerates

By Newton's Second law the object reaches impacts on the air with the gravitational force resulting in changing momentum of m×(Final Velocity - Initial Velocity)

As the velocity increases, the rate of change of momentum becomes equivalent to the gravitational force and by Newton's third law, the action action and reaction are equal and opposite hence they cancel each other out

The body then moves at a constant uniform motion down according to Newton's first law

Explanation:

At the point the object of mass, m, is dropped from the height of the tower, the only force acting on the object is the gravitational force such that the object has an acceleration which is the acceleration due to gravity, g, and the gravitational force is therefore = m × g

As the speed of the object increases while the object is falling with the gravitational acceleration the rate at which the object cuts through layers of air which (by Newton's first law of motion, are at rest ) has some buoyancy effect also increases therefore, the object is constantly increasingly changing the momentum of the air which by Newton's second law results, at an high enough velocity, and by Newton's third law, in a force equal to the applied gravitational force

Therefore, the force of the air drag becomes equal to the gravitational force, cancelling each other out and the object then moves according to Newton;s first law, in uniform motion of a constant speed while still falling down.

5 0
3 years ago
In the Millikan oil drop experiment the measured charge of any single droplet was always a whole number multiple of -1.60 x 10-1
BaLLatris [955]

Answer:

Number of electrons, n = 6

Explanation:

Total charge in a single droplet, q=-9.6\times 10^{-19}\ C

The measured charge of any single droplet, e=-1.6\times 10^{-19}\ C

Let n is the number of excess electrons are contained within the drop. According to the quantization of charge :

q=ne

n=\dfrac{q}{e}

n=\dfrac{-9.6\times 10^{-19}}{-1.6\times 10^{-19}}

n = 6

So, there are 6 electrons contained within the drop. Hence, this is the required solution.

7 0
3 years ago
Vector A has magnitude of 15.0 m/s and is 75° counter-clockwise up from the x-axis. What are the x- and y-components of the vect
LiRa [457]

Answer:

x component 3.88 y- component 14.488

Explanation:

We have given a vector A which has a magnitude of 15 m/sec which is at 75° counter-clock wise ( anti-clock wise) from x -axis which is clearly shown in bellow figure

Now x-component will be 15 cos75°=3.8822 ( as it makes an angle of 75° with x-axis )

y- component will be 15 sin 75°=14.488

For verification the resultant of x and y component should be equal to 15

So resultant =\sqrt{14.488^2+3.88^2}=15

3 0
3 years ago
Other questions:
  • During which change of state do atoms lose energy? sublimation freezing boiling melting
    11·2 answers
  • What is Metabolism?
    7·1 answer
  • In a system, when energy is transformed from one form to another
    13·2 answers
  • Two charges are separated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by
    13·1 answer
  • I’m a freshman, I got a 80% in the first quarter, 85% in the second and 70% in the third. I have a 46% in the fourth and 34 tota
    14·1 answer
  • When an element tends to lose its valence electrons in chemical reactions, it behaves more like a .
    5·2 answers
  • If the period of the wave is 0.34 seconds what would be the frequency of the wave
    14·1 answer
  • Hi
    7·1 answer
  • The chemical formula for Glucose is C12H6012.<br> True<br> False
    8·2 answers
  • Ejbsjca bdsj dbcsc j ecsabkfskbj jcbaskjbb
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!