A 75.0 kg person steps on a scale in an elevator. The scale reads 761 N. What is the magnitude of the acceleration of the elevator?

Answers

Answer 1

Answer: You can use Newton's law, Resultant force=Mass×Acceleration.To find the acceleration take force over mass of the person which is 761N÷75.0kg.Hope this helps.

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A chef has 1/2 a pound of flour to divide equally into two containers. How much flour will be in each container?

I don't get this one look at the attachment and help me?

Answers

The first three are true statements. The last one is false because anything divided by 0 is undefined.

A)False
B)True
C)True
D)True

I don't know what to do

Answers

ok so I will tell answers from left to right column (1st column is leftmost, 4th column is rightmost)

1st collumn is starting with 4 and going up by 4 each time so the blanks in the first column are 4,8,20

2nd collumn is starting with 11 and going up by 11 each time so the blanks in the second column are 11, 33

3rd column is staring with 5 and going up by 5 every time so the blanks in the third column are 5,10,20

4th column is starting with 7 and going up by 7 every time so the blanks in the fourth column are 7, 28, 42

the ratios are
part 1. 4:11
part 2. 5:7

A rectangular garden is 5 feet longer than twice its width. It has a sidewalk 3 feet wide on two of its sides. The area of the sidewalk is 213 square feet. Find the dimensions of the garden.

Answers

The length and width of the garden are 47 ft and 21 ft respectively.

Explanation

Suppose, the width of the garden is $x$ feet.

As the garden is 5 feet longer than twice its width, so the length will be: $(2x+5) feet$

So, the area of the garden $= length*width=x(2x+5)ft^2$

Now, the garden has a sidewalk 3 feet wide on two of its sides. That means, the length of the garden including the sidewalk $=(2x+5+3)ft =(2x+8)ft$ and the width including the sidewalk $=(x+3)ft$

Given that, the area of the sidewalk is 213 ft². So the equation will be.....

$(2x+8)(x+3)-x(2x+5)=213\n \n 2x^2+14x+24-2x^2-5x=213\n \n 9x+24=213\n \n 9x=189\n \n x=(189)/(9)=21$

So, the width of the garden is 21 feet and the length is $(2*21+5)ft= 47 ft$

Why does the amount of water that flows in a river change during the year?

Answers

because of the rain. It can either increase or decrease

A school librarian can buy books at a 20% discount from the list price. One month she spent $72 for books. What was the list price value of the books? Is the answer $90?

Answers

Answer:

$\boxed{\sf \ \ YES \ \ }$

Step-by-step explanation:

Hello

let's say that the price of the book was x

the price after a 20% discount is x - 20%*x = x*(1-20%)=x*(1-.20)=0.8*x

and this is $72 so we can write that

0.8*x=72

and then divide by 0.8 both parts

x = 72/0.8=90

So the list price value of the book is $90

and we can verify as 90 - 20%*90 = 90 - 18 = 72

Hope this helps

There are 37 cans of pineapple on each shelf at food mart if there are 7 shelves of pineapple estimate the number of cans pineapple at food mart by rounding the number of cans on a shelf yo the nearest ten

Answers

Answer:

260

Step-by-step explanation:

7 shelves containing 37 cans of pineapples each would give you 259 cans of pineapple. Then, round to the nearest ten would give you 260.

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