Complete Question:
A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 20m/s in 0.044 Seconds.
a. what acceleration is imparted to the paper?
b. if the mass of the paper is 0.003 kg, what force does the boxer exert on it?
c. how much force does the paper exert on the boxer?
Answer:
a. Acceleration = 454.55m/s².
b. Force = 1.36N
c. Force = -1.36N
Step-by-step explanation:
Given the following data;
Final velocity = 20m/s
Time = 0.044 seconds.
Since the paper is at rest, we know that it's initial velocity is equal to 0m/s.
a. To find acceleration;
Mathematically, acceleration is given by the equation;
[tex]Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}[/tex]
Substituting into the equation, we have;
[tex]a = \frac{20 - 0}{0.044}[/tex]
[tex]a = \frac{20}{0.044}[/tex]
Acceleration = 454.55m/s²
b. To find the force exerted by the boxer;
Mass = 0.003kg
Force = mass * acceleration
Force = 0.003 * 454.55
Force = 1.36N
c. To find the force exerted by the paper;
According to Newton's third law of motion which states that, for every action there is an equal and opposite reaction. Therefore, the paper exerts an equal but opposite force on the boxer.
Force = -1.36N
Solving Systems using tables
Mikayla put $212 in a savings account at the beginning of the year. At the end of each month, she withdrew $12 from her account. Mathew put $30 in his savings account at the beginning of the year. At the end of each month, he deposited $14 in his account. Let x represent the number of months which have passed and y represent the amount in each savings account.
A. Write an equation to represent the amount in Mikayla’s savings account.
B. Write an equation to represent the amount in Matthew’s savings account.
C. Below make an input-output tables that show the amount in each account for the first 8 months
D. When will Mikayla and Matthew have the same amount in their accounts?
Mikayla Matthew
X Y X Y
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Answer:
i hope this helps
Step-by-step explanation:
3% is the interest rate. Using the formula I=PRT, you can simply derive the rate by putting the given numbers in.
I = 450P = 3,000R = ?T = 5 Years
The equation now goes,450 = 3,000 * R * 5450 = 15,000 * R450/15,000 = R0.03 = R
multiply it by 100,
R = 3%
help me I wasn't here
Answer:
6/8 or 3/4 or 75%
Step-by-step explanation:
Use the expression 5a – 2b – 3 + 2b – 6a.
Part A
Simplify the expression.
–4
2a – 4b
–a – 3
a – 3
Part B
Which of the following is an equivalent expression?
–(3 + a)
–a + 3
–(a – 3)
–3 + a
Answer:
5a + (-6a) + (-2b) + 2b + (-3) = -a -3 or -(a + 3) so first answer is correct because -(a + 3) is the same as -(3 + a)
Step-by-step explanation:
6x times (-2y)
Urgent please send solution
Answer:
_2y6x
Step-by-step explanation:
this is the answer
I hope it will helps you
Which expression is equivalent to -3(m + 5)?
A: m - 15.
B: -3m + 5.
C: -3m - 15.
D: - 15m.
the answer is -3m - 15 .
hope it helps you
Solve the inequalities by graphing. Select the correct graph. y> X y<-X
Answer:
i think is y>X
Step-by-step explanation:
earth takes 6 seconds to travel 114 miles around the sun. How fast does the earth travel around the sun in miles per second
Answer: 19
Step-by-Step explanation:
So I am assuming that you should divide 114 divided by 6 which will leave you with the answer of 19.
Work out the lengths of b of 17cm and 12cm pythagoras
Answer:
[tex]hypotenuse = \sqrt{ {17}^{2} + {12}^{2} } \\ = \sqrt{289 + 144 } \\ = \sqrt{433} [/tex]
The ratio of men to women in the astronomy club is 3 to 2. The club has
60 members. How many club members are women?
Figure 11: Find the area of this composite shape.
Find the area of this composite shape.
4 cm
8 כש
4 cm
12 cm
The area of the composite figure is C = 80 cm²
What is the Area of a Rectangle?The area of the rectangle is given by the product of the length of the rectangle and the width of the rectangle
Area of Rectangle = Length x Width
Given data ,
Let the area of the composite figure be C
Now , C = area of rectangle - area of square
Let the area of the rectangle be A
Now , the length of the rectangle be L = 12 cm
Let the width of the rectangle be W = 8 cm
A = 12 x 8
A = 96 cm²
Area of square = 4 x 4 = 16 cm²
So , C = 96 - 16
C = 80 cm²
Hence , the area of figure is C = 80 cm²
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If a student saves $35 per week how long will it take to save enough money to buy a computer
Answer:
How much does the computer cost?
Step-by-step explanation:
When you let me know I'll come back and help you with the answer :)
Tt will take [tex]$\frac{x}{35}[/tex] weeks to buy the computer
We have student who saves $35 per week.
We have to determine how many weeks will it take to save enough money to buy a computer.
If you save $30 per week, how much money you will save in 10 weeks ?In 10 weeks you will save - 30 x 10 = $300
According to the question, we have -
Amount saved per week - $35
Assume that the cost of the computer is $x.
Now -
$35 → 1 week
$1 → [tex]$\frac{1}{35}[/tex] week
$x → [tex]$\frac{x}{35}[/tex] weeks.
Hence, it will take [tex]$\frac{x}{35}[/tex] weeks to buy the computer. You can put the cost of computer at the place of x and determine the number of weeks needed.
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Please Help ASAP I’m confused
Answer: B 89 degrees
Step-by-step explanation:
The triangle angle sum theorem states that the angles of a triangle sum to 180 degrees. Since we know two of the angle measures we can find the missing angle. 60 + 31 = 91 degrees.
180 - 91 = 89 degrees
Answer:
If i'm correct, the answer is (B) 89
Step-by-step explanation:
Hope this helps.
8 = –(q + –6) + 18
solve for q
Answer:
q=16
Step-by-step explanation:
math
way
.com
Answer:
q = 16
Step-by-step explanation:
Find x if it is one of the legs.
Which polynomial is prime?
O x2 + x + 1
O x2-x-2
O x2 - 12x + 11
O x2 + 2x -8
Answer:
x2 + x + 1
Step-by-step explanation:
A polynomial with integer coefficients that cannot be factored into polynomials of lower degree , also with integer coefficients, is called an irreducible or prime polynomial . Example 1: x2+x+1. (:
what is the perimeter of this building?
Answer:
115 m
Step-by-step explanation:
4 + 9 + 6 + 4 = 23 cm
23 x 5 = 115 m
i need the answers plzz
Answer:
I dont know but when u got the answer tell me
Answer:
20 small cups and 10 large cups
Step-by-step explanation:
It's just a case of trial and error for me, 40 small cups is 320, which doesnt work. 30 and 15? 30*8=240 15*16=240 nop. 20 and 10? 20*8=160 10*16=160 160+160=320 yup! So 20 small cups and 10 large cups
i will mark you brainliest so please help help help!!!!
Answer:
28,000
Step-by-step explanation:
Answer:
28,000
Step-by-step explanation:
if u multiply 6,827 by 4 u get 27,303 and 208, 000 is way off so is 240, 000 24,000 is off by 3,303 and 28, 000 is off by 697. so it's 28,000.
Gabriela was solving an equation, but when she checked her answer, she saw solution was incorrect . She knows she made a mistake, but she can’t find it.
Answer:
The distribution at the 2nd line
Step-by-step explanation:
I believe where Gabby went wrong was in her multiplication distribution
12*5=60 not 72
hope this helps!!
The value of y form the given equation is -65/11. Gabriela did mistake in second step while multiplying 12 and 5 and - sign into a bracket.
The given equation is 12(5+2y)=4y-(5-9y).
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation can be solved as follows:
12(5+2y)=4y-(5-9y)
⇒ 60+24y=4y-5+9y
⇒ 60+24y=13y-5
⇒ 24y-13y=-5-60
⇒ 11y=-65
⇒ y=-65/11
Therefore, the value of y form the given equation is -65/11. Gabriela did mistake in second step while multiplying 12 and 5 and - sign into a bracket.
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Brainiest to the RIGHT answer
Answer:
idrk
Step-by-step explanation:
What is 3(5)(5-2)+2
Answer:
47
Step-by-step explanation:
3 × 5 × (5-2) + 2
15 × (3) + 2
45 + 2
= 47
Please answer number 17 with work
Step-by-step explanation:i found out that x = 103x + 1 = 3111x - 4 = 1065x - 7 = 43
PLEASE ANSWER I NEED HELP ASAP
The table shows the running speeds of 10 randomly
selected ostriches.
Speed (miles per hour)
35 40 37 33 36 34 32 36 41 36
Based on the data, select the most reasonable prediction about the speed of
ostriches.
A. The typical ostrich runs at speeds greater than 40 miles per hour.
B. The top speed of an ostrich is 40 miles per hour.
C. The typical ostrich runs at a speed of about 30 miles per hour.
O D. The typical ostrich runs at a speed of about 36 miles per hour.
Answer:
D 36MPH
Step-by-step explanation:
David just accepted a job at a new company where he will make an annual salary of $69000. David was told that for each year he stays with the company, he will be given a salary raise of $2500. How much would David make as a salary after 4 years working for the company? What would be his salary after t years?
Answer:
He would be making 79000 after 4 years and I am guessing t means ten and that would be 94000.
Step-by-step explanation:
Answer:
salary after 4 years: 79,000
salary after t years: 69,000 + 2,500t
Step-by-step explanation:
2500 x 4 = 10,000
add 10,000 to 69,000
5.071 to 1 decimal place?
Answer:
5.1
Step-by-step explanation:
I don't know how to explain, but 1 decimal place is the number after the dot
In the city where sonya lives, it rains and average of 8.05 centimeters each month last year.About how many centimeters of rain fell in all last year? Show your work.
The total centimeters of rainfall in the city for the past year where Sonia lives is given by the equation A = 96.6 cm
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the total centimeters of rainfall for the past year be A
Now , the equation will be
The centimeters of rainfall every month in the city = 8.05 cm
The total number of months in a year = 12 months
So ,
The total centimeters of rainfall in the city for the past year A = centimeters of rainfall every month in the city x total number of months in a year
Substituting the values in the equation , we get
The total centimeters of rainfall in the city for the past year A = 8.05 x 12
On simplifying the equation , we get
The total centimeters of rainfall in the city for the past year A = 96.6 cm
Therefore , the value of A is 96.6 cm
Hence , the total rainfall is 96.6 cm
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Laura says that you should
always divide the bigger number
by the smaller number. Do you
agree with her or disagree with her?
why?
Answer:
agree
Step-by-step explanation: you should always divide the bigger number over the smaller number. but if you don't you'd still get the same answer
Q1 - Multiplying one equation
Work these simultaneous equations out
on paper and write down your answers.
p
4p + 2q = 28
13p + 69 = 88
9 =
3s + 4t = 31
S =o
88 + 8t = 72
t =
a =
4a + 3b = 45
16a + 4b = 124
b =
5m + 6n = 61
m =
15m + 4n = 99
n =
Answer:
p = 4
q = 6
s = 5
t = 4
a = 6
b = 7
m = 5
n = 6
Using the following table, what is the correct equation?
х
f(x)
-1
2/5
0
2.
1
10
2
50
Answer: 50
Step-by-step explanation: hope this helpss
(2.99548) x (1.8342)
Answer:
5.49430941
Step-by-step explanation:
Multiply together.
i hope this helps, good luck :)