CHEMISTRY HIGH SCHOOL

How would you physical separate ? A.) NaCl solution
B.) sand & water
C.) Italian salad dressing

Answers

Answer 1
Answer:
you would physically separate sand and water
Answer 2
Answer: The only thing you can physically separate is sand and water.

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Pierce conducts an experiment in which waves collide in a way that the energy increases, which means that has occurred

Answers

Answer:

It means the waves collides and constructive interference occurred.

Explanation:

If the two waves coming from the opposite direction collide with each other, there are two way of their interference.

  • Constructive interference: An interference which results in the increase in energy. And it is when crust of a wave comes on the crust of second wave.
  • Destructive interference: An interference which results in decrease in energy of the resulting wave and colliding waves cancel the result of each other.

Hence in experiment there will be constructive interference.

Answer:

C.

Explanation:

I took the test!

What is a common ancestor?

Answers

In evolutionary biology, a common ancestor is allegedly a link between two varying branches or types of creatures. (Another word for these is 'missing links', since up to this point, not a single one of these common ancestors has been found in the fossil record)
Hope that helped =)
A Common ancestor is a organism that has shared predecessor of more then one different scion of a group of organisms.

What is the answer to this question?

Answers

I think it's 4 but I am not even 50% sure... But I think that is the answer..

The same amount of force is applied to bowling balls one of the balls Waze 8 pounds and the other weighs 13 pounds which bowl will have a greater acceleration

Answers

Answer:

The bowling ball with mass 8 pounds has greater acceleration.

Explanation:

The acceleration on the objects is equal to the quotient of the force applied on it and its mass. From Newton's second law of motion, we have;

F = ma

where F is the force on the object, m is its mass and a is its acceleration.

⇒ a = (F)/(m)

Let us assume that a force of 50 N was applied on the two bowling balls.

Thus;

mass of the first bowling ball = 8 pounds = 3.62874 kg

So that,

50 = 3.62874 x a

a = (50)/(3.62874)

  = 13.779

The acceleration of the first ball is 13.78 m/s^(2).

For the second ball of mass = 13 pounds = 5.8967 kg

So that,

50 = 5.8967 x a

a = (50)/(5.8967)

  = 8.4793

The acceleration of the second ball is 8.48 m/s^(2).

Therefore, the bowling ball with mass 8 pounds has greater acceleration.

Mr. Fuller assigned his science class a lab comparing the masses of objects to the nearest gram using a balance. The mass of a paper clip is about 1 gram. How many paper clips will it take to balance the scale, if it is determined that a 1 centimeter cube of gold has the mass of 19.3 grams?

Answers

Like about 15 paper clips to balance the scale

Answer:

C)  19

Explanation:

took the test

How do you correctly read a graduated cylinder

Answers

See where the liquid or whatever you're measuring meets with the numbers! And thats your answer!
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