It’s either A or E most scientist try to come up with a logical explanation when it comes to nature and why it happens in nature I’m going to say it’s E because they can’t just have a final answer there more and likely going to come up with a rational person explanation
B. Where did you finally find your missing book ?
The normal force acting on the legs of the table is 175 N
The weight of the books is the force exerted by the books on the table, and it is given as:

The force exerted by the table is given as:

The parameters above imply that:
- The table and the books are stationary,
- The force exerted by both act in the same downward direction.
So, the normal force acting on the legs of the table is calculated as follows:

Substitute known values


Hence, the normal force acting on the legs of the table is 175 N
Read more about normal force at:
brainly.com/question/10941832
First of all you have two of them. Convert all inches to feet.
1 foot = 12 inches
2 feet = 24 inches.
30 inches is a little harder
30/12 = 2.5 feet. Now you are ready to figure the problem
Top A
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Area = L * w
L = 6 feet
w = 2 feet
A = 2 * 6 = 12 Square feet
Top B
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Area = 2.5 * 4
Area = 10 square Feet
Total Area = 10 + 12= 22 square feet
Cost
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Square feet * 42
Cost = 22 * 42
Cost = $924