1. How many centimeters are there in meter? a. 1
b. 10 c. 100
d. 1000 e. 10000

Answers

Answer 1

Answer:

There are 100 centimeters in one meter, the correct option is (C) 100

A meter is a unit of length in the International System of Units (SI) that is used to measure distance or length. One meter is defined as the distance traveled by light in a vacuum during a time interval of 1/299,792,458 of a second.

A centimeter, on the other hand, is a smaller unit of length in the SI system.

1 centimeter = 1 / 100 meter

One centimeter is equal to one-hundredth of a meter,

Therefore, the conversion factor = 100

Which means that there are 100 centimeters in one meter.

Therefore, the correct option is (C) 100

Learn more about conversion factor here

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Selma's class is making care packages to give to victims of a natural disaster. Selma packs one box in 5 minutes and has already packed 12 boxes. Her friend Trudy packs one box in 7 minutes and has already packed 18 boxes. How many more minutes does each need to work in order to have backed the same number of boxes?

Answers

Every 35 minutes Selma packs 7 boxes, while Trudy packs 5 boxes.

Thus every 35 minutes Selma decreases the difference between them in 2 boxes.

Since the original difference was 6 boxes, Selma needs 3 times 35 minutes, or 105 minutes, in all, to catch Trudy.

Answer- 105 minutes, or 1 hour and 45 minutes.

The bottom of a box has a surface area of 31.4 cm2. The mass of the box is 47.1 kilograms. Acceleration due to gravity at sea level is 9.80 m/s2. What pressure is exerted by the box where it rests?14.7 N
1.5 N
0.153 N
6.53 N

Answers

The correct answer to the physics problem in pressure given above would be 1.5 N.

First, I converted the cm^2 to m^ 2 (31.4 cm^2 = .00314 m^2).

Then I computed for the force (F= mg = (47.1kg)(9.8m/s^2) = 461.58 N)

Consequently, I used the equation of pressure (P = Force/Area).
P = 461.58 N / .00314 m^2
P = 1.47 or 1.5 N

Answer:

Pressure = 147,000 N.

Step-by-step explanation:

Given : The bottom of a box has a surface area of 31.4 cm². The mass of the box is 47.1 kilograms. Acceleration due to gravity at sea level is 9.80 m/s².

To find : What pressure is exerted by the box where it rests.

Solution : We have given that area of box = 31.4 cm²

First we convert it in meter².

1 meter = 100 cm

31.4 cm² = 0.00314 meter².

Mass of box = 47.1 kg

Acceleration due to gravity = 9.80 m/s².

According to Newton second law of motion , F = mass * Acceleration due to gravity.

F = 47.1 * 9.8

F = 461.58 Newton.

Pressure = $(Force)/(Area)$ .

Plugging the values of force and area.

Pressure = $( 461.58)/(0.00314)$ .Pressure

Pressure = 147,000 N.

Therefore, Pressure = 147,000 N.

(10 points)A certain regular polygon has sides of length 10 cm; its apothem is 12.1 cm. The polygon’s area is 484 cm². How many sides does the polygon have

Answers

There is a mathematical formula which relates these quantities, given by:

$A= (P* a)/(2)$

Using this, we have:

$A= (P* a)/(2) \n 484= ((10n)* 12.1 )/(2) \n \boxed {n=8}$

What is the basic metric unit of capacity?

meter
gallon
gram
liter

Answers

The basic metric unit of capacity is gallon.
Why gallon? because when you say capacity, it means that the maximum amount of somethings that it can hold. For example you will find the maximum capacity of your truck to carry gas, you will say around 3 gallons.

Presley is organizing the school book sale. Each stall will have 40 books on the shelf and 2 boxes of books with b books inside. Presley also has 200 books in inventory to refill the shelves as books sell. This situation can be written as the following expression:40s + (2b)s + 200

How many books should Presley have ready if she plans to open 8 stalls and have 12 books in each box?

a) 520
b) 712
c) 820
d) 1,622

Answers

s=number of stalls I assume

if s=8
and b=12
40(8)+(2*12)8+200
320+(24)8+200
520+192
712

B

What prompted the United States to join the fighting in World War I?a. the assassination of an archduke
b. an attack on Pearl Harbor
c. the sinking of American ships in the Pacific
d. the sinking of American ships in the Atlantic

Answers

C. the sinking of ships in the pacific . The immediate cause of America's entry into World War I in April 1917 was the German announcement of unrestricted submarine warfare, and the subsequent sinking of ships with Americans on board

Final answer:

The United States joined World War I primarily due to the sinking of American ships in the Atlantic.

Explanation:

The correct answer is c. the sinking of American ships in the Atlantic.

The sinking of American ships in the Atlantic was the main reason why the United States joined the fighting in World War I. The most significant incident was the sinking of the British ocean liner Lusitania by a German U-boat in May 1915, which killed over 100 American citizens.Thus, the combination of unrestricted submarine warfare and the Zimmermann Telegram led to the United States joining World War I in 1917.

This event, along with continued German attacks on American ships, eventually led to the United States entering the war in April 1917.