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
Marysya12 [62]
3 years ago
15

Which of the following is a scientific question?

Physics
2 answers:
frez [133]3 years ago
5 0

Answer:

I think the answer would be c

Explanation:

A. is not scientific

B. is subjective, so it can't be scientific.

C. can be studied with an experiment

D. relates to regulations, not science

scZoUnD [109]3 years ago
3 0

Answer:

Hey

C Which LED screen design is the most energy-efficient?

In physics, we talk about energy, not the best price, or which one looks the best, or if it violates a patent

You might be interested in
The trade winds are tropical winds that blow toward the Equator. Choose the statement that best explains why the trade winds blo
AveGali [126]

The best and most correct answer among the choices provided by your question is the fourth option or letter D. Trade winds blow towards the equator because t<span>he Equator receives the most heat energy.

</span>The surface air that flows from these subtropical high-pressure belts toward the Equator is deflected toward the west in both hemispheres by the Coriolis effect. These winds blow<span> predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

</span>

3 0
3 years ago
You might say that this experiment was an attempt to build a scale, and then calibrate it against a scale that we trust (the ele
Allushta [10]

No.

Since repeated measurements are taken and the average and 95% confidence interval are calculated, the possibility of the lack of agreement being a random error has been minimized or even eliminated.

<h3>What is a random error?</h3>

Random error is defined as the deviation of the total error from its mean value due to chance.

Random errors can result from the instrument not being precise or from mistakes by the researcher.

Random errors can be minimized by taking multiple readings and averaging the results.

Since repeated measurements are taken and the average and 95% confidence interval are calculated, the possibility of the lack of agreement being a ransom error has been minimized.

Learn more about random errors at: brainly.com/question/22041172

3 0
3 years ago
Read 2 more answers
A circular radar antenna on a Coast Guard ship has a diameter of 2.10 m and radiates at a frequency of 16.0 GHz. Two small boats
Anna35 [415]

Answer:

d = 76.5 m

Explanation:

To find the distance at which the boats will be detected as two objects, we need to use the following equation:

\theta = \frac{1.22 \lambda}{D} = \frac{d}{L}

<u>Where:</u>

θ: is the angle of resolution of a circular aperture

λ: is the wavelength

D: is the diameter of the antenna = 2.10 m

d: is the separation of the two boats = ?

L: is the distance of the two boats from the ship = 7.00 km = 7000 m

To find λ we can use the following equation:

\lambda = \frac{c}{f}

<u>Where:</u>

c: is the speed of light = 3.00x10⁸ m/s

f: is the frequency = 16.0 GHz = 16.0x10⁹ Hz

\lambda = \frac{c}{f} = \frac{3.00 \cdot 10^{8} m/s}{16.0 \cdot 10^{9} s^{-1}} = 0.0188 m            

Hence, the distance is:

d = \frac{1.22 \lambda L}{D} = \frac{1.22*0.0188 m*7000 m}{2.10 m} = 76.5 m

Therefore, the boats could be at 76.5 m close together to be detected as two objects.

 

I hope it helps you!

7 0
3 years ago
Draw sodium formate by placing atoms on the grid and connecting them with bonds. Include all lone-pair electrons.
nikklg [1K]

Answer:

Sodium formate is the sodium salt of formic acid which is given as HCOONa.

Explanation:

The basic structure of Sodium formate consists of following bonds:

  1. The main Ionic bond between the HCOO^- radical and Na^+.
  2. The  sigma covalent bonds between atom of H, atom of C and  both atoms of O.
  3. The pi bond between atom of C and one atom of O.

The structure along with lone pairs is given as attached

7 0
3 years ago
Which does not use a wheel and axle?
omeli [17]
A saw, because wheels and or axles are present in all of the other items. A saw is a wedge, this it does not contain axles or wheels.
4 0
4 years ago
Other questions:
  • Suppose the initial kinetic energy and final potential energy in an experiment are both zero. What can you conclude?
    5·2 answers
  • Describe the two types of comet tails and how each are formed.
    9·1 answer
  • A quarterback passes a football from height h = 2.1 m above the field, with initial velocity v0 = 13.5 m/s at an angle θ = 32° a
    13·1 answer
  • What volume of water at O°C can a freezer make into ice cubes in 1.0 h, if the coefficient of performance of the cooling unit is
    14·1 answer
  • If you are sitting on a school bus, is the driver in motion (according to your
    14·1 answer
  • Which statement describes a climate condition?
    13·1 answer
  • Write the derivation and unit of impulse​
    5·1 answer
  • One out of every 92 tax returns that a tax auditor examines requires an audit. If 50
    6·1 answer
  • The kinetic and potential energies of an object both always depend on which property?.
    8·1 answer
  • A race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 95 km/h. What is the car's cent
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!