Answer:
25
Step-by-step explanation:
The kinetic energy of a ball with a mass of 2 kg that is rolling at a velocity of 5 m/s is 5 Joules
Calculating Kinetic energyFrom the question, we are to determine the kinetic energy of the ball
From the given equation for the velocity,
[tex]v = \sqrt{\frac{2K}{m} }[/tex]
We will make K the subject of the equation
[tex]v = \sqrt{\frac{2K}{m} }[/tex]
Take the squares of both sides
[tex]v^{2} ={\frac{2K}{m} }[/tex]
Multiply both sides by m
[tex]mv^{2} ={\frac{2K}{m} } \times m[/tex]
[tex]mv^{2} =2K[/tex]
∴ [tex]K = \frac{1}{2} mv^{2}[/tex]
Now, for the kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second
That is,
m = 2 kg
and v = 5 m/s
Putting the parameters into the equation, we get
[tex]K = \frac{1}{2} \times 2 \times 5^{2}[/tex]
K = 25 J
Hence, the kinetic energy of a ball with a mass of 2 kg that is rolling at a velocity of 5 m/s is 5 Joules
Learn more on Calculating kinetic energy here: https://brainly.com/question/25959744
Here is the complete question:
Select the correct answer from each drop-down menu. The velocity, v, in meters/second, of an object with a mass of m, in kilograms, and kinetic energy of K, in joules, is given by this equation.
[tex]v = \sqrt{\frac{2K}{m} }[/tex]
Use the equation to complete this statement. The kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second is joules.
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Hewp will gib brainliest!!
Answer:
x > 26
Step-by-step explanation:
1. Distribute 8 to each value in the parentheses
2. Add 6 to both sides (it cancels out)
3. Multiply both sides by 32/8 (the reciprocal) , and cancel that value (leave the x!)
answer is x > 26
Answer:B
This is what I think
if f(x) = x^2 + 4x - 12, find f(2) HELP PLEASE I NEED ANSWER ASAP WILL GIVE BRAINLIEST
Answer:
B)4
C)-20
D)-4
the answer is D -4
Step-by-step explanation:
you plug f(x) into 4x. y=4(2)-12 have a good day :)
A, b, c , d someone hurry up and answer
A camera can take 3/4 of a picture per second. How many pictures can it take in 16
seconds?
Answer:
12
Step-by-step explanation:
It can take 3/4 of a picture per second. So all you have to do is take 3/4 and multiply it by 16.
the student scored 18 points out of 25 what percent did he make?
Hello good afternoon...God bless here is the answer to your following question
The student scored 18 points out of 25 which mean he got an
72%
Find each answer mentally.
1. A sticker costs 25 cents. How many dollars is that?
2. A pen costs 1.50 dollars. How many cents is that?
3. How many cents are in one dollar?
4. How many dollars are in one cent?
Plz help!!!
Answer:
1: 1/4 dollars or .25 dollars or 25%
2: 150 cents
3: 100 cents
4: 1/100 dollars, or 0.01 dollars, or 1%
Step-by-step explanation:
The answers to the given problems are found by converting the units as $0.25, 150 cents, 100 cents and $0.01.
What is a Measurement unit?A measurement unit is a unit to measure certain quantities. For example, the mass can be measured in kilograms, length can be measured in meter and time can be measured in seconds.
The given problem can be solved as follows,
(1) The cost of sticker in cents is 25.
Since 1 dollar = 100 cents
⇒ 1 cent = 1/100 dollars
⇒ 25 cent = 25/100 = 0.25 dollars.
Thus, the cost of sticker is $0.25.
(2) The cost of the pen is 1.50 dollars.
Since 1 dollar = 100 cents
⇒ 1.50 dollar = 1.50 × 100 = 150 cents
(3) There are 100 cents in one dollar.
(4) There are 1/100 = 0.01 dollars in one cent.
Hence, the answers to all the problems are obtained as $0.25, 150 cents, 100 cents and $0.01.
o know more about measurement unit click on,
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Evaluate f(x) when x=-10
(2x - 4 if -3
f(x) =
\x2 +3 if 10 < x <13
-24
16
No solution
-7
Answer:
Step-by-step explanation:
-7 is the correct.
Translation has no fixed points
True or False
Answer:
False?
Step-by-step explanation:
A runner saved $25 when he purchased a pair of tennis shoes on sale. If the sale price was 35% off the regular price, what was the regular price of the tennis shoes?
Given:
Amount saved in sale = $25
Sale price was 35% off the regular price.
To find:
The regular price of the tennis shoes.
Solution:
Let the regular price of the tennis shoes be x.
Sale price was 35% off the regular price.
[tex]Discount=\dfrac{35}{100}x[/tex]
Amount saved in sale = $25
[tex]0.35x=25[/tex]
Divide both sides by 0.35.
[tex]x=\dfrac{25}{0.35}[/tex]
[tex]x=71.42857[/tex]
[tex]x\approx 71.43[/tex]
Therefore, the regular price of the tennis shoes is $71.43.
Joey is standing on a diving board that is 5.6 feet above sea level. Joey dives into the water to a depth of -8.6 feet below sea level.
Answer:
14.2 feet
Step-by-step explanation:
I'm guessing the question is asking how far did Joey travel from the diving board.
Joey is 5.6 feet above 0 so to reach 0 we must subtract 5.6
-5.6 + - 8.6 = - 14.2 feet
Joey traveled 14.2 feet
(5x+3y)-(2x-7y)+8x please help
Answer:
A I soo sorry but I really can't solve this I have not learned it yet
Answer: 11x-10y
Step-by-step explanation:
Combine like terms.
(5x+3y)-(2x-7y)+8x
3x + 8x
Remember to distribute the negative.
-(-7y) = +7y
3y +7y
Combine like terms once again.
3x+8x= 11x and 3y+7y= 10y
Which decimal is greater ? .0203 or .023
Answer:.023
Step-by-step explanation:
Question 2 of 5
Three friends go grocery shopping together, and each buys the same kind of
oranges. LaMar buys 2 pounds (lb) and pays $3.00. Enrico buys 5 pounds and
pays $7.50. Anna buys 3 pounds and pays $4.50.
Identify the graph and unit price that represent the orange costs.
Answer:
C because i looked it up here is the answer
Step-by-step explanation:
can i please have brainlist
Answer:
C-hope this helps :)
Step-by-step explanation:
:)yeet and delete
which expressions is a Sum?
A) 5(2 + 3)
B) 8 x (6 + 3)
C) 5 (2) + 2(6/3)
d) (5 / 2) / (2 + 3)
Answer:
a
Step-by-step explanation:
sum always means only addition :D mark brainliest if right
Does Each Equation Demonstrate The Distributive Property? Explain.
1) -2( x + 1 ) = -2x -2
2) (s - 4) 8 = 8 ( s - 4)
3) 5n - 45 = 5 ( n - 9 )
4) 8 + ( t + 6) = ( 8 + t ) + 6
[tex](42 \times 51) + 14 = [/tex]
Answer:
All of them demonstrate the distributive property, except for number 4. 1-3 all have a number on the outside of the parenthesis to distribute itself to the number and variable within the parenthesis, while #4 has a plus sign outside each pair of parenthesis, making you unable to distribute those numbers.
The dot plot shows the number of classes per semester that a group of boys and girls have chosen to take in their freshman year of college. Which statements correctly describe the two data sets?
The difference of the means is 1.5.
The difference of the means is 0.5.
The difference of the means is about one-third the mean absolute deviation of either data set.
The difference of the means is 1.
The difference of the means is about one-half the mean absolute deviation of either data set.
The correct statement is the difference of the means is 0.5.
What is Box- plot?A box and whisker plot, often known as a box plot, shows a data set's five-number summary. The minimum, first quartile, median, third quartile, and maximum make up the five-number summary. A box is drawn from the first quartile to the third quartile in a box plot. At the median, a vertical line passes through the box.
Given:
As, from the box plot mean of boys is
= (1 x3 + 2x 7 + 3 x 6+ 4 x 2 + 5 + 6) /20
= 2.7
and, mean absolute deviation of boys
= (1.7 x 3 + 0.7 x 7 + 0.3 x 6 + 1.3 x 2 + 2.3 + 3.3)/ 20
= 1
now, from the box plot mean of girls is
= (1 x 2 + 2 x 4 + 3 x 7+ 4 x 4 + 1 x 5 + 6 x 2) /20
= 3.2
and, mean absolute deviation of girls
= (2.2 x 2+ 1.2 x 4 + 0.2 x 7+ 0.8 x 4 + 1.8 x 1+ 2.8x 2)/ 20
= 1.06
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what is the answer to this question
Answer:
Number of protons
Step-by-step explanation:
The atomic number represents the number of protons that are in the nucleus. This says what chemical properties something has and where it is located on the periodic table.
Best of Luck!
what’s the mode,range and shape?
Answer:
range=4.5-0.5 (highest number less than lowest number)=3.0
What is the equation represented by this line?
ANSWER ASAP GIVING BRAINLEST
Answer:
the linear equation is y= -4/3x + 2
Answer:
y=-x+2
Step-by-step explanation:
6th grade math
34/51 = x/3
solve pls
I WILL MAKE YOU BRAINIELIST.
what is 37829192976277×2283838328282
Answer:
8.6395761e+25
Step-by-step explanation:
no
what’s this in standard form
Answer:
0.614
Step-by-step explanation:
Find the value of in the triangle shown below.
9
7
Answer:
The math department needs to buy new textbooks and laptops for the computer science classroom. The textbooks cost $116.00 each, and the laptops cost $439.00 each. If the math department has $6,500 to spend and purchases 30 textbooks, how many laptops can they buy
the slope of the line represented by 3x-5y=-15
Answer:
i think its 3/5
sorry if im wrong:(
Step-by-step explanation:
Answer:
Since the equation '3x + 5y = 15' is transformed to slope-intercept form 'y = (-3/5)x + 3' the slope is (-3/5).
Step-by-step explanation:
Since the equation '3x + 5y = 15' is transformed to slope-intercept form 'y = (-3/5)x + 3' the slope is (-3/5).
What's the answer to this?
Answer:
steeper
Step-by-step explanation:
D) Vertically compressed
E) Flatter
=====================================================
Explanation:
An example would be if a = 0.5 which leads to the graph being half as tall as it used to be since 1/2 = 0.5; notice how a = 0.5 makes 0 < a < 1 true. Since the graph is squished vertically, the graph is flatter.
We don't have a reflection over the x axis since 'a' is not negative.
----------------
Extra info:
If a > 1 then the graph is stretched vertically to make it taller than it used to be. Eg: a = 5 leads to the graph being 5 times taller than before which also would make it steeper too. The value of d handles the vertical shifting. If d > 0, then we shift up d units. If d < 0, then we shift down |d| units.I'll give brainly thing
What is the equation, in slope-intercept form, for the given graph?
Answer:1
Step-by-step explanation:
The line is intercepted with the number one
The price of a car was decreased by 16% to £2400. What was the price before the decrease?
Answer:
£2857.14
Step-by-step explanation:
Given parameters:
Cost of car = £2400
Discount = 16%
Unknown:
The original cost = ?
Solution:
Original price - ( 16% x original price) = New price
Original price(1 - 16% ) = 2400
Original price(1 - 0.16) = 2400
Original price x 0.84 = 2400
Original price = [tex]\frac{2400}{0.84}[/tex] = £2857.14
will give branliest if correct :)
Answer:
15.71
Step-by-step explanation: I did It on a peice of paper and it's a mess so yeah......
Which word describes the slope of the line?
Answer:
rate of change
Step-by-step explanation:
Answer:
"rise over run" or "rate of change"
Step-by-step explanation:
"Slope" itself is "rise over run", or how quickly the line moves up or down relative to the x-axis as the value of x changes.
A gradient is really just another name for slope, not a description OF a slope.
Can someone help me on this pls?
Answer:
2 2/5
Step-by-step explanation: