Answer:
Yes, No, No, Yes
Step-by-step explanation:
Answer:
A.) No
B.) No
C.) No
D.) Yes
Step-by-step explanation:
I just did it a month ago.
To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical
mass is dropped onto the mat from a height of 1 m above the mat. During the impact,
the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to
only 4 cm thick.
a. How much kinetic energy does the cylinder have at the instant just before it
contacts the mat?
b. How much work does the mat do to stop the fall of the cylinder?
c. What average vertical force does the mat exert on the cylinder during the impact,
from contact until the cylinder’s vertical velocity is zero?
Answer:
A)196J
B)-208J
C)3467J
Step-by-step explanation:
We are given that a 20 kg cylindrical mass is dropped onto the mat from a height of 1 m above the mat. During the impact, the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to only 4 cm thick.
So, The Mat gets compressed by : 10cm - 4 cm = 6 cm=0.06 m
a)
Using Conservations of energy
Potential energy at the top = Kinetic energy at the point before touching the surface
Kinetic energy = mgh= [tex]20 \times 9.8 \times 1 = 196 J[/tex]
b)
Work done by the mat do to stop the fall of the cylinder =[tex]-mg(h+0.06)=-20 \times 9.8(1+0.06)=-208 J[/tex]
C)
Work done=[tex]\text{Average force} \times \text{ Compression of mat}[/tex]
[tex]208=F \times 0.06[/tex]
F=3467J
Your research of competitors shows prices of $45, $78, $13, $125, and $66. If you throw out the
highest and lowest data points (outliers), what is the mean of the remaining prices?
Answer:
1. 63 or
2. 37.8
step-by-step explanation:
1. $125,$78, $66, $45, $13 take out $125 and $13 then add $78, $66, $45 and you get $189 then divided by 3 and you $63
2.$125,$78, $66, $45, $13 take out $125 and $13 then add $78, $66, $45 and you get $189 then divided by 5 and you $37.8
Answer:
ITS 63
Step-by-step explanation:
JUST DID DA TEST CUZ
Which of the following is the solution for the inequality below? 3 x - 4 -5 x > -5
Step-by-step explanation:
Good luck with that ... sparkles
Mrs. Lewis received her paycheck this week in the amount of $535.75. She spent $76.98 on groceries, she paid her $59.95 phone bill and she spent $22.45 at the movies. How much did she have left over?
Answer:
376.37
Step-by-step explanation:
Answer:
376.37
Step-by-step explanation:
I NEED THIS ANSWER NOW PLS I'LL GIVE YOU 30 POINTS IF YOU ANSWER IN THE NEXT COUPLE OF SECONDS
What is the sign of the product (3)(−25)(7)(−24)?
Positive, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is positive
Positive, because the products (3)(−25) and (7)(−24) are positive, and the product of two positive numbers is positive
Negative, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is negative
Negative, because the products (3)(−25) and (7)(−24) are positive, and the product of two positive numbers is negative
Answer:
A. Positive, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is positive
Consider the figure shown
Answer:
x = 60 degrees
Step-by-step explanation:
In a triangle, all the inside angles should add up to 180 degrees, so to get this question, we have to add the angles we know and then subtract 180 by the number we get:
68 + 52 = 120
180 - 120 = 60
So, x = 60 degrees
Hope this helps :)
How many ways are there to put 5 balls in 3 boxes if the balls are not distinguishable but the boxes are
Answer: 5
Here are some ways:
1 ball, 2 balls, 2 balls2 balls, 1 ball, 2 balls3 balls, 1 ball, 1 ball1 ball, 3 balls, 1 ball1 ball, 1 ball, 3 ballsHope this helps!
There 720 ways are there to put 5 balls in 3 boxes.
What is Combination?Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant. You can choose the components of combos in any order.
Given:
Number of balls= 5
Number of boxes = 3
As, balls are not distinguishable but the boxes are then number of ways can be
= 3! 5! / C(5, 5)
= 3 x 2 x 5 x 4 x 3 x 2
= 720 ways
Learn more about Combination here:
https://brainly.com/question/29594894
#SPJ2
what is the slope of the line that goes through (0 0) and (6 3)
Answer:
3/6
Step-by-step explanation:
y2-y1/x2-x1
Reese loves to drink healthy green smoothies. A 16oz serving of smoothie has 170 calories. How many calories are in a 24oz smoothie?
Answer:
255 calories.
Step-by-step explanation:
There are many different ways to solve this, but I only know two.
First I noticed that 16 and 24 were both divisible by 4 so divided 16 by 4 and got 4. Then I divided 170 by 4 and got 42.5. So then I divided 24 by 4 and got 6. I multiplied 6 by 255.
OR
Divide 170 by 16 which gave me 10.625 which is the unit rate or constant of proportionality. So I multiplied 10.625 by 24 and got 255.
Solve for q.
q/3 −1
= 3
q =
Answer:
q = 12
I hope this helps!
Who to tell if the question is rational or irrational
Find the 15th term of the geometric sequence 1, -4, 16, ...
Answer:
268,435,456
Step-by-step explanation:
Multiply by -4
Use the formula for the area of a rectangle A=LW to answer the question. A rectangle has a length of n units. Its width is 8 units more than its length. What is the area of the rectangle?
A. 2n +8
B. N(n+8)
C. N(n-8)
D. 2+8n
Please help and explain I dont get it
Answer:
d is ur answer maybe ok ok ok
Answer:
B. N(n+8)
Step-by-step explanation:
A rectangle's area is Length x Width
The rectange's length is not known to us. N is it's variable
It says the width is 8 units mor then the length and ask for the are of the rectangle.
Now since rectangle's area is length times width we multiply n (the length) with the width (8+n).
This would be N(n+8)
Hideyko has 3/5 yards of ribbon to tie on balloons for the festival. Each balloon will need 3/10 yard of ribbon. How many balloons can Hideko Tie with ribbon?
Answer:
The answer would be 2
Step-by-step explanation:
Please mark me brainiest B) :) ;) B]
find surface area please
Answer:
The area is 54.6
Step-by-step explanation:
Hopefully this helps!
com/forms/d/
14.Which of the following equations is
correct? *
a) Assets+Capital= Liabilities.
b) Assets-Liabilities= Capital.
c)Assets + Liabilities = Capital.
d) None of these.
This is required a
a
Step-by-step explanation:
the answer is:
c)Assets + Liabilities = Capital.
A suit is on sale for $336, which is 64% of the regular price.
What is the regular price?
Answer:
Hi there!
Your answer is
Regular price is 525$
Step-by-step explanation:
336$ = 64%
/64 to determine 1%
5.25$ = 1%
*100 to determine regular price
525$ = 100%
Dwayne wants to buy a jump rope that costs $4, a board game that costs $7, and a playground ball that costs $3. He has saved $9 from his allowance, and his uncle gave him $4. How much more money does Dwayne need to buy the jump rope, the game, and the ball?
Answer:
he needs $1
Step-by-step explanation:
add 4+7+3=14 then your gonna add what he already has which is 9+4= 13 so 14-13=1
2x+3=x-4
what is the solution of this equation?
Answer:
2x+3=x-4
-x. -x
x+3=-4
-3. -3
x = -7
A local pizza restaurant offers a gold card for loyal customers. The gold card costs $25 for a year. With a gold card, each large pizza is a discounted cost of $12. If customers don’t have a gold card, a large pizza costs $18. How many pizzas must you purchase in a year for the gold card to be cheaper?
Answer:
5 pizzas
Step-by-step explanation:
18-12=6 each pizza with card saves 6$
$25 card cost÷$6 savings per pizza=4.16 pizza to break even. round up since cant buy fraction of pizza.
check
5 pizza with card 12 *5=60
60 + 25 = 85 spent in total
$5 *$18 = $90, no discount
4 pizza would be 73 with discount and 72 without
Math please help as soon as possible
Answer:
What are the options?
Step-by-step explanation:
Because we need it.
A car travels 90 miles in 1.5 hours. How many miles will it travel in 5 hours if its speed remains the same?
Answer:
300 miles
Step-by-step explanation:
i am doing the same test right now
The vet said Lucy's cat Mitten weighs 8 2/6 pounds. This is 1 5/6 pounds more than Mittens weighed last year. How much did Mitten weigh last year?
Answer:She weighed 7 1/4
Step-by-step explanation: just took the test
There are 39 calories in 12 fluid ounces of a tea drink. Based on this information, how many calories are in 36 ounces of the tea drink?
Answer:
Let '?' be the calories in 36 ounces.
39 12
? 36
When the above numbers are cross-multiplied you get the equation:
12x = 1404
? = 1404/12
? = 117
Therefore, there are 117 calories in 36 ounces of tea drink.
3483 rounded to the nearest 10
Answer:
3.45
Step-by-step explanation:
pretty sure
6) Anita bought a pie and ate 30% of it yesterday afternoon. In the night, her brother Bob ate 40% of what was left. The rest was kept for their sibling Sheila. What percentage of the pie was left for Sheila?
Answer: 30%
Step-by-step explanation:
Pie eaten by Anita = 30%
Pie eaten by Bob = 40%
total Pie = 100%
Pie left for by Sheila = 100 - (30 + 40)
= 100 - 70
= 30%
therefore, pie left for Sheila = 30%
Hope it helped u,
pls put thanks
and mark as the Brainliest.
Answer:70%
Step-by-step explanation:
3. Factor the expression. (1 point)
-X2+3x+40
O-(x+2)(x-20)
O-(x-5)(x+8)
O (x-4)(x-10)
O-(x+5)(x-8)
Answer:
[tex] - (x + 5)(x - 8)[/tex]
Solve. Write your answer without exponents.
3^0 x 3^4
Step-by-step explanation:
3^0 is 1 and 3^4 is 81
I think you can solve it now
Hope this helps <3
A I M R T X 1 9 13 18 20 24 Using the table for clear text character codes, write the clear text matrix for MATRIX.
Answer:
Step-by-step explanation: a=13 b= 1 c=20 d=18 e=9 f=24
Answer:
a=13
b=1
c=20
d=18
e=9
f=24
Step-by-step explanation:
got it right on edg 2021
PLEASE HELP IT'S DUE AT 11:59 (5 pts per part)
A. The Clear-Picture Cable Company charges different rates for ordering different levels of cable service. Clear-Picture Cable Company charges $24.95 a month for basic cable services plus $6.95 a month for each additional premium channel. If Stacey's monthly bill is $45.80, how many premium channels is she receiving? Write and solve and equation to answer the question. Show all work.
B. Dan signed a contract for 12 months of basic cable service with 2 premium channels each month. Dan budgeted $400 for this year's cable expenses. EXPLAIN whether Dan budgeted enough money to cover the yearly cost for his cable contract.
(please answer with all work and a full explanation for B. THANKS SO MUCH!!)
Answer:
A. 3 premium channels
B. No, he did not
Step-by-step explanation:
1a. make an equation that shows the price Stacey has to pay each month. x is how many premium channels she's paying for.
24.95 + 6.95x = 45.8
2a. subtract 24.95 from both sides.
6.95x = 20.85
3a. divide both sides by 6.95.
x = 3
1b. make an expression to show the price of Dan's contract. (keep in mind, he has to pay for 2 premium channels for 12 months, so you would have to pay for the premium channels 24 times!)
24.95(12) + 6.95(24)
2b. multiply.
299.4 + 166.8
3b. add.
$466.20
Dan would have to pay $466.20, so no, he did not budget enough money.