Among types of research, only _______ can establish causality

Answers

Answer 1

Answer: In a Quantitative Research, during the statistical analysis various strict procedures are executed to collect data. This is carried out with sophisticated statistical computer packages which help the researchers to determine the extent of a relationship in between variables. This could be a casual relationship.

Related Questions

Which of the following distances is the longest?a. 0.006 kilometersb. 0.3 decimetersc. 820 metersd. 20,000 millimeters
The temperature scale which starts at absolute zero is the _____.Centigrade scaleCelsius scaleFahrenheit scaleKelvin scale
A/an _______ is a type of research that involves observation and collecting data but does not include a control. A. dependent variable B. investigation C. experimentation independent variable
I dont get why its c i dont under the graph for the vertical component in option c
For the examples below, explain what a physical change or a chemical change has occurred. Justify your answerA. When you mix baking soda and vinegar, carbon dioxide is released. B. You build a tall sand castle at the beach. After wave washes it over, the sand castle turns into a big pile of sand C. Boiling water turns a raw egg into a hard boiled egg D. Max divided cookie dough into small pieces on a cookie sheet. E. A loaf of freshly baked bread tastes better and looks much different than a lump of bread dough F. A glass of water is left in the Sun. In the time, the water evaporates leaving the glass empty.

Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed intoA) electrical energy.
B) mechanical motion.
C) heat and light energy.
D) electrical and heat energy.

Answers

As per the question the crumpled paper was burnt .

When the paper was burnt,it produces light.One also feels the sensation of heat.

The electrical energy is due to the flow of electrons. Here no electronic motion takes place.Hence no electrical energy will be produced.

Mechanical energy is the sum total of kinetic and potential energy.The kinetic energy is the energy gained due to the motion of the body and potential energy is the energy gained due to the position or configuration of the body.

Hence from above,we can get that the correct answer to the question is-C] Heat and light energy.

It was changed into heat and light energy.

Wich is a scalar quantity
(1)velocity (2)speed (3)acceleration (4) displacement

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Speed is the only one on the list
that doesn't have a direction.

A pair of scientists proposes two different theories to explain the same set of observations. Which of the following best explains the value of these competing theories?Competing theories can be a source of new, testable ideas.
Competing theories are necessary to transform a theory into a law.
Competing theories generate controversy that helps popularize ideas.
Competing theories allow scientists to combine the most interesting aspects of both theories.

Answers

Answer:

Competing theories can be a source of new, testable ideas.

Explanation:

Theory is the set of knowledge that seeks to explain, with a high degree of accuracy, all-encompassing phenomena of nature, that is, it is different from the meaning of the word "theory" used in everyday life, when we say that something "is only a theory "in the sense that it is a mere speculation.

Competing theories present a much larger set of knowledge, which gives the universe a source of new and testable ideas

Competing theories can be a source of new, testable ideas.

If 1.3 grams of air has a volume of 1000cm ^3, what is the density of air? A) 1300g/cm^3
B) 1001.3 g/cm^3
C) 769.23 g/cm^3
D) 0.0013 g/cm^3

Answers

Answer:

Density, $d=0.0013\ g/cm^3$

Explanation:

Given that,

Mass of the air, m = 1.3 grams

Volume of the air, $V=1000\ cm^3$

The density of the air is given by total mass divided by total volume. Mathematically, it is given by :

$d=(m)/(V)$

$d=(1.3\ g)/(1000\ cm^3)$

$d=0.0013\ g/cm^3$

Hence, this is the required solution.

D)
Density is equal to mass/volume, so in your case:
density=1.3/1000=0.0013 g/cm^3

A box containing a piece of wood and enough air to burn the wood is measured and found to have a mass of 1.5 kg. If the wood is burned and none of the smoke, ashes, or hot gases are allowed to leave the box, then how will the mass of the box compare to the mass before burning? Will it be more, less, or the same? A. More B. Less C. The same

Answers

Answer: C, the same

Explanation:

This is a practical use of the concept of conservation of mass. Mass cannot be created or destroyed, so if you start with 1.5 kg, as long as you dont lose any (which it says you don't) you will end with 1.5kg.

The amplitude of a transverse wave on a string is 3.0 cm. The ratio of the maximum particle speed to the speed of the wave is 3.9. What is the wavelength (in cm) of the wave?