All categories

2 years ago

Can someone help and I need it quick

Mathematics

1 answer:

kvasek [131]2 years ago

8 0

Answer:

The change in momentum between 0 ms and 14 ms is 0 kg•m/s

Step-by-step explanation:

Here, we want to calculate the change in momentum using the graphical illustration

This is same as the slope using the two points

Let us have 2 expressions of (x,y)

Mathematically, that will be obtained from the graph as follows;

At 0 ms, we have 0 N

At 14 ms , we also have 0

So the two points we are considering are;

(0,0) and (14,0)

= (0-0)/(14-0) = 0/14 = 0 N/ms

You might be interested in

If 5 hotdogs and 15 hamburgers cost 29.50 and 10 hot dogs and 15 hamburgers cost 56.25. how much are the hot dogs and how much a

Orlov [11]

Answer:

Hotdog costs $5.35 each and hamburger costs $0.18 each

Step-by-step explanation:

The difference in price between the two is the cost of 5 hotdogs.

So, $56.25 - $29.50 = $26.50

I hotdog would cost $26.50/5 = $5.35

Substituting the cost of one hotdog,

10($5.35) + 15ham = $56.25

$53.50 + 15 ham = $56.25

15 ham = $56.25 - $53.50

15 ham = $2.75

So, 1 ham = $2.75/15

= $0.18

5 0

2 years ago

Which of the following describes the correct process for solving the equation 2x - 6 = 22 and

Ulleksa [173]

Answer:

The correct solution is B

Step-by-step explanation:

2x - 6 = 22

2x = 28

x = 14

3 0

1 year ago

Read 2 more answers

Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (in miles per gallon

Leviafan [203]

Answer: 0.82 miles per gallon

Step-by-step explanation:

Given : Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (x) (in miles per gallon) of her car.

The results are :45 44 43 44 45 44 43

The formula to find the standard deviation is given by :-

$\sigma=\sqrt{\dfrac{\sum_{i=1}^n(x_i-\overline{x})^2}{n-1}}$

First we find mean of the given data ,

$\overline{x}=\dfrac{\sum^n_{i=1}x_i}{n}\\\\=\dfrac{45+44+43+44+45+44+43}{7}=\dfrac{308}{7}=44$

Now,

${\sum_{i=1}^n(x_i-\overline{x})^2=(1)^2+(0)^2+(-1)^2+(0)^2+(1)^2+(0)^2+(-1)^2$

$=1+1+1+1=4$

Now, standard deviation of the above results will be :-

$\sigma=\sqrt{\dfrac{4}{7-1}}\\\\=\sqrt{\dfrac{4}{6}}\\\\=\dfrac{2}{\sqrt{3}}=0.816496580928\approx0.82$

Hence, the standard deviation of these results = 0.82 miles per gallon

8 0

3 years ago

Evan saves 7 dollars each week. let d represents the total amount of money in dollars Evan saves after w weeks.

DerKrebs [107]

D=7
D to W = 19
Gives total savings on Week W $133

8 0

1 year ago

The slope, m, of a linear equation can be found using the formula m = , where the x- and y-values come from two ordered pairs,

Westkost [7]

The formula is y=mx + b, or rearranged would be m= y/x -b/x.

7 0

3 years ago