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
balandron [24]
3 years ago
13

A stress researcher wants to look at the effect of meditation on anxiety. To do this, she creates two groups of subjects: one gr

oup receives instruction in meditation, while the other receives no training at all. One month later, she has subjects complete a questionnaire designed to measure anxiety and she looks to see whether there are any differences in anxiety between the two groups. In this experiment, the meditation condition (meditation vs. no meditation) would be the _____________ variable and anxiety would be the _____________ variable.
Engineering
1 answer:
mariarad [96]3 years ago
6 0

Answer:

Independent, dependent

Explanation:

The mediation conditions are what affect anxiety hence anxiety is dependent on mediation. The main aim of the researcher is to see how anxiety levels of people vary depending on the meditation. In this case, meditation conditions are independent variables. Therefore, it's proper to conclude that the meditation vs no meditation conditions are independent variables while anxiety is dependent variable

You might be interested in
PLEASE HELP
lyudmila [28]

Answer:

Air

Explanation:

6 0
3 years ago
Read 2 more answers
Explain why systems of measurement are defined and provide an example to support your answer.
kotegsom [21]

Answer:

Explanation:

Chicken wings

8 0
3 years ago
A brittle material is subjected to a tensile stress of 1.65 MPa. If the specific surface energy and modulus of elasticity for th
8090 [49]

Answer:

The maximum length of a surface flaw that is possible without fracture is

2.806 \times 10^{-4} m

Explanation:

The given values are,

σ=1.65 MPa

γs=0.60 J/m2

E= 2.0 GPa

The maximum possible length is calculated as:

\begin{gathered}a=\frac{2 E \gamma_{s}}{\pi \sigma^{2}}=\frac{(2)\left(2 \times 10^{9} \mathrm{~N} / \mathrm{m}^{2}\right)(0.60 \mathrm{~N} / \mathrm{m})}{\pi\left(1.65\times 10^{6} \mathrm{~N} / \mathrm{m}^{2}\right)^{2}} \\=2.806 \times 10^{-4} \mathrm{~m}\end{gathered}

The maximum length of a surface flaw that is possible without fracture is

2.806 \times 10^{-4} m

7 0
3 years ago
An automobile having a mass of 1100 kg initially moves along a level highway at 120 km/h relative to the highway. It then climbs
soldier1979 [14.2K]

Answer:

-6111.11\ \text{kJ}

863.28\ \text{kJ}

Explanation:

m = Mass of automobile = 1100 kg

v = Velocity of car = 120 km/h = \dfrac{120}{3.6}\ \text{m/s}

h = Height of hill = 80 m

g = Acceleration due to gravity = 9.81\ \text{m/s}^2

Change in kinetic energy

KE=\dfrac{1}{2}m(u^2-v^2)\\\Rightarrow KE=\dfrac{1}{2}\times 1100\times (0-(\dfrac{120}{3.6})^2)\\\Rightarrow KE=-611111.11\ \text{J}

Change in kinetic energy is -6111.11\ \text{kJ}

Change in potential energy is given by

PE=mgh\\\Rightarrow PE=1100\times 9.81\times 80\\\Rightarrow PE=863280\ \text{J}

The change in potential energy is 863.28\ \text{kJ}.

8 0
3 years ago
Identify the unit of the electrical parameters represented by L and C and prove that the resonant frequency (fr)=1÷2π√LC
Gre4nikov [31]

Answer:

L = Henry

C = Farad

Explanation:

The electrical parameter represented as L is the inductance whose unit is Henry(H).

The electrical parameter represented as C is the inductance whose unit is Farad

Resonance frequency occurs when the applied period force is equal to the natural frequency of the system upon which the force acts :

To obtain :

At resonance, Inductive reactance = capacitive reactance

Equate the inductive and capacitive reactance

Inductive reactance(Xl) = 2πFL

Capacitive Reactance(Xc) = 1/2πFC

Inductive reactance(Xl) = Capacitive Reactance(Xc)

2πFL = 1/2πFC

Multiplying both sides by F

F * 2πFL = F * 1/2πFC

2πF²L = 1/2πC

Isolating F²

F² = 1/2πC2πL

F² = 1/4π²LC

Take the square root of both sides to make F the subject

F = √1 / √4π²LC

F = 1 /2π√LC

Hence, the proof.

8 0
3 years ago
Other questions:
  • A state of stress that occurs at a point on the free surface of the of a solid body is = 50 MPa σ x , =10 MPa σ y , and = −15 MP
    8·1 answer
  • Consider the following algorithm, which takes as input asequence of n integers a1, a2, . . . , an and produces as outputa matrix
    15·1 answer
  • Two sections of a pressure vessel are to be held together by 5/8 in-11 UNC grade 5 bolts. You are told that the length of the bo
    11·1 answer
  • Given asphalt content test data:
    8·1 answer
  • Tech A says that multiple gasket or seal leaks can be caused by a defective exhaust gas recirculation (EGR) system.
    5·1 answer
  • What is the first step to cutting internal threads on an engine lathe?
    9·1 answer
  • What is a radio wave made up of? Molecules? Electrons? Other?
    15·2 answers
  • Why dose bob not let humans touch him one and only Ivan
    8·1 answer
  • Based on its atomic number, how many electrons does a hydrogen atom have
    12·1 answer
  • the water level in a tank is 20 m above the ground. a hose is connected to the bottom of the tank, and the nozzle at the end of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!