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
almond37 [142]
3 years ago
13

1.

Physics
1 answer:
Mumz [18]3 years ago
8 0

Answer

Procedural bias occurs when the unfair amount of pressure is applied to complete their response quickly.

Measurement bias occurs when there is systematic or random error occur while taking the reading.

Design bias occur when the research fails to encounter all the aspects of the projects before presenting conclusion.

1) The correct answer is option B.

  Balance is miscalibrated hence there will be systematic error which is a type of measurement bias.

2)  The correct answer is option A.

    Limiting response time for participant is an example of Procedural bias.

3) The correct answer is option A

    Here, Jackie has not surveyed the diverse group so it is the case of design bias

You might be interested in
Sound level B in decibels is defined as
Lelechka [254]

Answer:

The approximate combined sound  intensity is I_{T}=1.1\times10^{-4}W/m^{2}

Explanation:

The decibel  scale intensity for busy traffic is 80 dB. so intensity will be

10log(\frac{I_{1}}{I_{0}} )=80, therefore I_{1}=1\times10^{8}I_{0}=1\times10^{8} * 1\times10^{-12}W/m^{2}=1\times10^{-4}W/m^{2}

In the same way for the loud conversation having a decibel intensity of 70 dB.

10log(\frac{I_{2}}{I_{0}} )=70, therefore I_{2}=1\times10^{7}I_{0}=1\times10^{7} * 1\times10^{-12}W/m^{2}=1\times10^{-5}W/m^{2}

Finally we add both of them I_{T}=I_{1}+I_{2}=1\times10^{-4}W/m^{2}+1\times10^{-5}W/m^{2}=1.1\times10^{-4}W/m^{2}, is the approximate combined sound  intensity.

3 0
3 years ago
1. Say whether the following statements are true or false and explain why:
tiny-mole [99]

Explanation:

A] TRUE

B] TRUE

C] FALSE

D] FALSE

E] TRUE

F] TRUE

G]FALSE

H] FALSE

8 0
3 years ago
Drag each label to the correct location. Sort the sentences based on whether they describe the properties of a heterogeneous or
Lisa [10]

Answer:

ijpferiukjlwbl aojh oljn,

Explanation:

5 0
3 years ago
Witch planet takes 84 earth year's to orbit the sun just once
alekssr [168]
Uranus takes 84 earth years to make a full rotation around the sun<span />
8 0
3 years ago
Read 2 more answers
A uniformly charged rod (length = 2.0 m, charge per unit length = 3.0 nc/m) is bent to form a semicircle. What is the magnitude
Artist 52 [7]

Answer:

84.82N/C.

Explanation:

The x-components of the electric field cancel; therefore, we only care about the y-components.

The y-component of the differential electric field at the center is

$dE = \frac{kdQ }{R^2} sin(\theta )$.

Now, let us call \lambda the charge per unit length, then we know that

dQ = \lambda Rd\theta;

therefore,

$dE = \frac{k \lambda R d\theta }{R^2} sin(\theta )$

$dE = \frac{k \lambda  d\theta }{R} sin(\theta )$

Integrating

$E = \frac{k \lambda   }{R}\int_0^\pi sin(\theta )d\theta$

$E = \frac{k \lambda   }{R}*[-cos(\pi )+cos(0) ]$

$E = \frac{2k \lambda   }{R}.$

Now, we know that

\lambda = 3.0*10^{-9}C/m,

k = 9*10^9kg\cdot m^3\cdot s^{-4}\cdot A^{-2},

and the radius of the semicircle is

\pi R = 2.0m,\\\\R = \dfrac{2.0m}{\pi };

therefore,

$E = \frac{2(9*10^9) (3.0*10^{-9})   }{\dfrac{2.0}{\pi } }.$

$\boxed{E = 84.82N/C.}$

7 0
3 years ago
Other questions:
  • What is a wave that has all the crests and troughs in the same place at the same time?
    9·2 answers
  • A normal mode of a closed system is an oscillation of the system in which all parts oscillate at a single frequency. In general
    11·1 answer
  • Do the moon rotate counterclockwise
    12·1 answer
  • Help help help help help
    13·1 answer
  • A new concrete mix is being designed to provide adequate compressive strength for concrete blocks. The specification for a parti
    13·1 answer
  • Light travels fastest when moving through
    15·1 answer
  • Chromatic aberration in lenses is a result of which wave property of light?
    7·1 answer
  • What purpose does a generator serve in a power plant?
    15·1 answer
  • g A CD is spinning on a CD player. You open the CD player to change out the disk and notice that the CD comes to rest after 15 r
    5·1 answer
  • Which has the greatest frictional force among this surfaces
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!