An ice skater standing on an icy surface pushes off a wall. The ice skater has a mass of 60 kg and exerts a force of 100 N on the wall. A rollerblader standing on a wooden floor pushes off a wall. The rollerblader has a mass of 90 kg and exerts a force of 100 N on the wall. Both people move after pushing on the wall and keep their bodies still, relying only on friction to stop.
How much force does the wall exert on the ice skater, and why?
0 N; the wall does not move when the ice skater pushes off.
100 N; the force exerted by the wall is equal to the ice skater’s push.
Greater than 100 N; the force exerted by the wall redirects the motion of the ice skater.
Between 0 N and 100 N; the icy surface decreases the force needed to move the ice skater.
It's 100 N, which follows directly from Newton's third law - for every force acting on a body, that same body exerts a force equal in magnitude in response.
What are the factors of x2-144
Answer:
(x+12)(x-12)
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
the radius of a circle is 63 centimeters. what is the circumference of the circle?
Answer:
[tex] \color{magenta} \huge{ \boxed{answer}}[/tex]
Solve for circumference→ C ≈ 395.84cmhopefully help:)
Step-by-step explanation:
✨use #CarryOnLearning to help our medical frontliners✨
#CarryOnLearning
Determine whether the triangles similar? Justify your answer
A Yes; AA Similarity
B Yes; SAS Similarity
C Yes; SSS Similarity
D) No
In a sample of 1100 U.S. adults, 213 think that most celebrities are good role models. Two U.S. Adults are selected from this sample without replacement. Complete parts (a) through (c).
Answer:
a) 0.0374 , b) 0.6500 , c) 0.3500
Step-by-step explanation:
Pr (Both consider celebrities role models) = (213/1100) x (212/1099)
= 0.0374
Pr (None consider celebrities role models) = (887/1100) x (886/1099)
= 0.6500
Pr (atleast one consider celebrities role models) = 1 - Pr (None consider role models)
1 - 0.6500 = 0.3500
Help PLEASE I don't get this giving many points
Answer:
x=20
Step-by-step explanation:
Rex is making window cleaner by mixing vinegar and water. The ratio table
below shows how much of each ingredient to mix together.
WINDOW CLEANER
Cups of
Vinegar
Cups of
Water
1
3
2.
6
3
9
If Rex uses 7 cups of vinegar, how many cups of water does he need to add?
Answer:
21
Step-by-step explanation:
In the chart, the left side increases by one, and the right side increases by 3. So the left side multiplied by 3 will give you the right side. 7 x 3 = 21, so he will need 21 cups of water.
A planter is shaped like a regular hexagon. The side lengths are 2 meters and the apothem is √3 meters. What is the area of the hexagonal planter?
20.78 in²
8.66 in²
10.39 in²
18 in²
Answer:
20.78in^2
Step-by-step explanation:
Answer:
10.39 in^2
Step-by-step explanation:
A=1/2 Pa. The P is for perimteter and the a is for apothem. You insert the numbers
A=1/2 (2) (-/3)
A= 10.39
Hope this helps :)
HELP ASAP!!!20pts
1/3x=−20
WHAT IS X?
Answer:
x = -60
Step-by-step explanation:
1/3x=−20
X is 1/3
X times 3 = a full X
Fill it in
X times -20 = -60
Hope this helps :)
The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters. What volume of the pyramid in cubic centimeters
A 13,500
B 40,500
C 900
D 1,350
Answer:
The volume of the pyramid is 13500 cm cubed (A)
What is the slope for this graphed line?
4/3
-3/4
-4/3
3/4
Answer:
3/4
Step-by-step explanation:
answer asap plllllsssssss
Answer:
n + 32 = 59.13
Step-by-step explanation:
n + 32 = 59.13
Answer:
32+n=59.13?
Step-by-step explanation:
I hope this helps im bad at math ;-;
help plzzzz !! thanks
Answer:
C
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = 2, 3) and (x₂, y₂ ) = (0, - 1)
m = [tex]\frac{-1-3}{0-2}[/tex] = [tex]\frac{-4}{-2}[/tex] = 2
The line crosses the y- axis at (0, - 1 ) ⇒ c = - 1
y = 2x - 1 → C
10 points for help answer please
Answer:
What do you want me to do with these numbers?
Step-by-step explanation:
Do you want me to factor?
heyy
this easy work(i think)
The tropical rainforest has acidic soil which is bad for plant growth; however, the Rainforest has the most biodiversity. Which abiotic factor increases the biodiversity of the rainforest?
Many of the plants in the rainforest are vines that grow up the trees and don’t need soil.
The Venus fly trap consumes insects to make up for the bad soil.
The days are short in the rainforest, so plants have less sunlight.
The temperature of the rainforest is warm all year round which is good for growing plants.
Answer:
Many of the plants in the rainforest are vines that grow up the trees and don’t need soil. :P
Step-by-step explanation:
Find a, b, and c.
A) a=12, b=6 square root 3, c=3 square root 6
B) a=12, b=12 square root 2, c=3 square root 6
C) a=6 square root 3, b=12 square root 3, c=6 square root 2
Answer:
[tex]C). \: a=6 \: square \: root \: 3, \: b=12 \: square \: root \: 3, \: c=6 \: square \: root \: 2 \\ [/tex]
Your dinner bill was $37.90 with 8% tax and 19% tip.
What was the final price?
A Tax
B. Tip
C. Final Price
I NEED HELP NOW!!!
Help pls ASAP
Answer:
linear
Step-by-step explanation:
The temperature in Waterloo was − 5°C at sunrise. By noon the temperature had risen by 12 Celsius degrees. What was the temperature in Waterloo at noon?
2x+2y=-2 y = x + 5 please hurry!
Answer:
2x+2y=x+5
(move the x next to the 2y)
= 2x+2y-x=5
(the x is negative because i moved it)
(collect the like terms)
= x+2y=5
(so the answer is...)
x+2y=5
HELP ILL GIVE BRAINLIEST for the given diagram what’s the answer?
Answer:
I only know No.1
Step-by-step explanation:
The figure is a right triangle i'm sorry I cant do much more than that.
Betsy is ordering prizes for a school fair. She must order 2 helium balloons for every 5 people and 3 stuffed animals for every 8 people. Organizers expect 120 people to attend the fair. TRUE OR FALSE: Betsy orders 48 helium BALLOONS
Answer:
True, she would need to order 48.
Step-by-step explanation:
If you divide the expected number of people (120) by the number of balloons per person (120 divided by 5) then multiply that by 2 you get 48.
Find the side length of a cube with a volume of 166 m
If necessary, round your answer to the nearest tenth.
Look at the picture and thanks
Answer:
E
Step-by-step explanation:
Sjsjdjddjdjdjjddjdjdjdjdjdndnsnsnsbs answer is E
Answer: C i think
Step-by-step explanation: hop this helps :)
What is the measure of Z CAB? 38° 52° 70° 128°
Answer:
52
Step-by-step explanation:
Consider parallelogram ABCD with diagonals that intersect at E. What value of x proves that the parallelogram is a rectangle if ED=7x+21 and AC=154?
a. 7
b. 8
c. 14
d. 19
Do y’all know what number 3,4, and 5 is??
Answer:
I'm not sure on the others but 5 is 11
Explanation:
11^2=121
121-121=0
A straight line is to a ruler as an angle is to:
Answer:
a protractor
Step-by-step explanation:
You measure a straight line with a ruler
You measure an angle with a protractor
Answer:
Protractor.
Step-by-step explanation:
A protractor is used to create an angle and a ruler is to draw a line.
Hope this helps, have a great day! :D
!!!HELP ASAP!!! Are all of the angles in a rhombus 90 degrees?
Answer:
no a rhombus doesn't have 4 right angles
a right angle=90 degrees
Answer:
not always
Step by step explanation:
if one is 90 degrees, then yes
If you have one at 89 degrees, for example, then the corresponding angle would be 91 degrees
Find the median of the data in the box plot below.
rebounds
Juan's number of rebounds each game
HHH
0
3
6
9
12
15
Stuck? Watch a video or use a hint.
Report a problem
Answer:
lol not sure
Step-by-step explanation:
im not sure
Answer:
10
Step-by-step explanation:
i just did it on khan academy