What does newton's third law say about why momentum is conserved in collisions?A. Equal forces act in equal times, so the change in momentum for both objects must be equal.
B. Unequal forces act in unequal times, so the change in momentum for both objects must be equal.
C. Unequal forces act in unequal times, so the change in momentum for both objects must be unequal.
D. Equal forces act in unequal times, so the change in momentum for both objects must be equal.

Answers

Answer 1

Answer:

Answer: Option (A) is the correct answer.

Explanation:

According to Newton's third law of motion, when force is exerted by one body to second body then the second body will also exert a force equal in magnitude and opposite in direction on the first body.

For example, when we hit a wall with our leg then the wall also applies a force on our leg and thus, our leg gets hurt.

Hence, we can conclude that newton's third law says that momentum is conserved in collisions because equal forces act in equal times, so the change in momentum for both objects must be equal.

Answer 2

Answer: I took the test and can confirm that the answer is A.

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2Al + 6HCl → 2AlCl3 + 3H2 If 3.0 grams of H2 were produced, how many grams of Al reacted? (Molar mass of Al = 27 g/mol, molar mass of H2 = 2.0 g/mol) ___ grams

Answers

The 2AI + 6HCL = 2ALCL3 + 3H2. of the 3.0 gms of H2 are made.

The values derived from the grams of H2 in production can be used for finding the molar mass of AI of 27.

AI will react and make a 26.8 g of AI as molar mass consists of AI = 27 g / ml and the M of the H2 = 2.0g/ mol gms.

The calculated M of grams is 26.8 rounded to 3g figures.

Learn more about the 2AI + 6HCL = 2ALCL3 + 3H2.

brainly.com/question/14840695.

Answer:

its actually 26.8 rounded to three sig figs

Explanation:

ur welcome

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Due to high amount of dissolved oxygen in cold water, goldfish have a better chance of survival.

what is dissolved oxygen?

Dissolved oxygen is the amount of oxygen that is present in the water bodies.

As dissolved oxygen is very much important for the aquatic animals because their survival depends on the water. When we increases the temperature of water then the amount of dissolved oxygen decreases which cuts off the supply of oxygen to the aquatic animals. That's why every aquatic specie has a better chance of survival in the cold water, due to presence of the abundant dissolved oxygen.

Hence, goldfish has a better survival in cold water because of dissolved oxygen.

To learn more about dissolved oxygen, visit below link:

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