When a man holds a big fish, he feels a downward pull on his hand. The object of the pull is ( ) A. Fish B. earth C. man D. hand

When a man holds a big fish, he feels a downward pull on his hand. The object of the pull is ( ) A. Fish B. earth C. man D. hand

B. Earth
Because of the universal gravitation, any object on the earth is affected by the gravity of the earth
In order to overcome the gravity of the earth, people give the fish an upward pull, so they feel a downward pull

What is the law of {1,1} {4,16} {7,} {? 100} numbers

"Mathematical answer group" for you to answer, I hope to help you
{1,1}{4,16}{7,49}{10,100}
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Among the natural numbers from 1 to 100, there are () numbers with a factor of 7?

14

If a number is divided by 7 to 1, by 4 to 3, find all these numbers within 100

We need to find a minimum number that satisfies the condition first. If we only look at 1 divided by 7, then the number is 8, but 8 does not satisfy 3 divided by 4, then we add 7, and then we see that 15 and 15 satisfy these two conditions. Therefore, 15 plus any integer multiple of the least common multiple of 4 and 7 (i.e. 28) can satisfy the condition. Therefore, 15, 43, 71 and 99 are within 100