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
alekssr [168]
3 years ago
9

What is the final temperature when 50 g of water at 20°c is mixed with 75 g of water at 60°c

Physics
1 answer:
tatyana61 [14]3 years ago
4 0
44C i think. Do you have options for the answer?
You might be interested in
A boy starts from point A and moves 5 units toward the east, then turns back and moves 3 units toward the west. What is the disp
Flura [38]
The displacement of the boy is 2 units
4 0
3 years ago
Ordinary ocean waves are created by the interaction of the ____ and ____.
dmitriy555 [2]
Wind and amplitude creates the waves in an ordinary ocean
7 0
3 years ago
A museum curator moves artifacts into place on various different display surfaces. If the curator moves a 145 kg aluminum sculpt
NikAS [45]
We are given the mass of an <span>aluminum sculpture which is 145 kg and a horizontal force equal to 668 Newtons. The coefficient of friction can be determined by dividing the horizontal force by the weight of the object. In this case, 668 N / 145 * 9.8 equal to coeff of friction of 0.47</span>
8 0
3 years ago
Read 2 more answers
Characteristics that a scientific measuring tool should have
bixtya [17]

Answer:

RELIBILITY - is the consistency of your measurement, or the degree to which an

instrument measures the same way each time it is used under the same condition with the

same subjects. In short, it is the repeatability of your measurement. A measure is considered

reliable if a person's score on the same test given twice is similar. It is important to

remember that reliability is not measured, it is estimated. A good instrument will produce

consistent scores. An instrument’s reliability is estimated using a correlation coefficient of

one type or another.

VALIDITY

VALIDITY - Validity is the extent to which a test measures what it claims to measure. It is

vital for a test to be valid in order for the results to be accurately applied and interpreted.

Validity isn’t determined by a single statistic, but by a body of research that demonstrates

the relationship between the test and the behavior it is intended to measure. There are three

types of validity: It is the strength of our conclusions, inferences or propositions. More

formally, Cook and Campbell (1979) define it as the "best available approximation to the

truth or falsity of a given inference, proposition or conclusion."

PRACTICIBILITY

PRACTICIBILITY - It should be feasible & usable. Quality of being usable in context to the

objective to be achieved.

USABILITY

USABILITY(practicality) ease in administration, scoring, interpretation and application, low

cost, proper mechanical make – up

MEASUREABILITY

MEASUREABILITY - It should measure the objective to be achieved.

Explanation:

5 0
2 years ago
Neptune is a planet that...
Ludmilka [50]
It would be option C. It rotates, or spins, on its axis, but it revolves around the sun.
8 0
3 years ago
Read 2 more answers
Other questions:
  • I want to ask about science
    14·2 answers
  • Two balls of equal size are dropped from the same height from the roof of a building. One ball has twice the mass of the other.
    9·1 answer
  • What would the weight of an astronaut be on Saturn if his mass is 68 kg and acceleration of gravity on Saturn is 10.44 m/s2? Ple
    14·1 answer
  • How does an inclined plane trade force for distance??
    8·1 answer
  • The law of reflection is quite useful for mirrors and other flat, shiny surfaces. (This sort of reflection is called specular re
    8·1 answer
  • What is the relationship between net force and balanced forces
    14·2 answers
  • Maria and Ben are both suffering from a hereditary disease, as described in the following table.
    11·2 answers
  • In an element’s square on the periodic table, the number with the greatest numerical value represents the
    7·2 answers
  • Define potentiol energy , kenetic energy.​
    7·2 answers
  • Using the periodic table, choose the more reactive nonmetal.<br> Si or N
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!