A scientist told his student assistants that he had sorted groups of mice by their intelligence and asked the assistants to assess the groups’ maze-solving abilities. The scientist had not actually sorted the mice by intelligence. The students rated the “highest intelligence” group of mice as the best maze solvers and the “lowest intelligence” group as the worst maze solvers. What was the scientist trying to demonstrate by doing this experiment?Experimental subjects should never be put into groups.
Mice should not be judged by their intelligence.
Higher intelligence mice are better maze solvers.
People can introduce their own biases into an experiment.
Answers
Answer:
d
Explanation:
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What is the leading cause for change between states of matter?
Which technology allows doctors to evaluate whether an athlete has broken a bone?
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Answer:
The solubility of most solids decrease as temperatures decreases.
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5INGH
Explanation:
B. refraction
C. diffraction
D. interference
E. transmission
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The phenomenon is called "refraction". It's the process of
light waves bending toward a different direction when they
cross a boundary between different media ... in this case,
from water into air.
Your brain doesn't know that the light waves bent toward a
new direction when they came out of the water into the air,
so your brain locates the bottom half of the pencil just like it
ALWAYS does ... in the direction the light waves are coming FROM.
sodium in the salt molecules
hydrogen in the water molecules
water
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salt is the solute in that situation
b. the masses of the objects and the distance between them.
c. the weight of the objects and their speeds.
d. the masses of the objects and their weights.
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The correct answer to the question is : B) The masses of the objects and the distance between them.
EXPLANATION :
Before going to answer this question, first we have to understand Newton's law of gravitation.
As per Newton's law of gravitation, everybody in the universe attracts every other body with a force called gravitational force or force of gravity which is directly proportional to the product of masses of the two bodies, and inversely proportional to the square of separation distance between them.
Let us consider two bodies of masses M and M' which are separated by a distance R.
The gravitational force acting between them is calculated as -
Gravitational force
Here, G is known as universal gravitational force constant.
From above, we see that force of gravity depends on the masses of the objects and the distance between them.
determined by their masses and the distance between them.
Their speeds have no effect on the gravitational force, and their weight
IS the gravitational force.
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You mean like a box sitting on a table.
One force is the force of gravity, pulling downward on the box.
Now, you know that the forces acting on the box must be balanced, because
if they're not, then the box would be accelerating. But it's just sitting there, so
there must be some other force, just exactly the right strength and direction to
exactly cancel the force of gravity on the box, so that the net force on it is zero.
The other force is the force of the table pushing upward on the box. It's called
the "normal force".
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A salt lake also known as saline lake, is a landlocked body of water that has a concentration of salts.
These salts are typically sodium chloride and other dissolved minerals significantly higher than most lakes. In some cases, salt lakes have a higher concentration of salt than sea water which are also termed as hypersaline lakes.
Answer is C. The water flowing in to salt lakes contains minerals.
I had it on a test.