The force (F) needed to cause the acceleration (a) of an object of mass, m, is given by the equation, F=ma where m is the object’s mass. If a 12-Newton force causes the object to accelerate to 3 m/s2, What is the force needed to accelerate that same object to 7 m/s2? The unit of force is N (Newtons)
Answers
Answer:
According to Newton s Second Law of Motion, also known as the Law of Force and Acceleration, a force upon an object causes it to accelerate according to the formula net force = mass x acceleration. So the acceleration of the object is directly proportional to the force and inversely proportional to the mass.
Step-by-step explanation:
The question requires calculating the objects mass in kilogram (kg)
The mass in kg of the objects is 4 kg
Given:
F = ma
Where,
F = Force (N)
M = mass (kg)
a = acceleration (m/s²)
If
F = 12-Newton
m = 3 m/s²
a = ?
F = ma
12 = m × 3
12 = 3m
divide both sides by 3
m = 12/3
m = 4 kg
Therefore, the mass in kg of the objects is 4 kg
Related Questions
Traveling along a river, a man in a row boat loses his hat when he passes under a bridge. In 15 minutes, he realizes that he lost his hat, and rows his boat the other way until he is able to retrieve his hat 1 km away from the bridge. What is the speed of the river's current?
Answers
Answer:
The speed of the current is 33.33 meter/minute.
Step-by-step explanation:
Let the speed of the boat in still water is x km per minute and the water is r km per minute.
The speed of the boat in downstream is (x + r) km per minute and in upstream is (x - r) km per minute.
First, the man was moving in upstream, because the hat was retrieved 1 km away from the bridge.
After losing the hat the man traveled 15 minutes upstream, hence he went 15(x - r) km far from the bridge.
After 15 minutes he was coming back to collect his hats.
Let, he has traveled downstream for t minutes to get his hat.
Hence, t(x + r) = 15r + tr + 15(x - r) or, tx = 15x or, t = 15.
Again, 15r + 15r = 1 km or, r = 1/30 km = 1000/30 =33.33 meters.
Answer:
2 km/h
Step-by-step explanation:
You want to know the speed of the river's current if a man loses his hat in the river and continues to row downstream for 15 minutes before returning upstream to retrieve his hat, 1 km downstream from where he lost it.
ReferenceSince the hat is moving with the current, the boat is essentially in "still water" relative to the hat. The distance rowed in 15 minutes, relative to the hat, is exactly the distance that must be rowed to retrieve the hat. That is, the return trip takes 15 minutes as well.
The man is away from his hat for 1/2 hour, in which time the current has moved it downstream 1 km. Hence the speed of the current is ...
(1 km)/(1/2 h) = 2 km/h
The speed of the river's current is 2km/h.
__
Additional comment
Interestingly, it does not matter if the original direction is upstream or downstream, nor does it matter how fast the man is rowing (as long as his speed is not zero).
The circumference of a circular park is approximately 18 feet. What is the approximate area inside the circular park?
Answers
Answer:
25.685 square feet.
Step-by-step explanation:
Circumference = 2 * π * radius
From this, we can derive the formula for the radius:
radius = Circumference / (2 * π)
Let's substitute the value of the circumference and calculate the approximate radius:
radius = 18 / (2 * π)
radius ≈ 18 / (2 * 3.14159)
radius ≈ 2.865 feet
Now that we have the approximate radius, we can calculate the area:
Area ≈ π * radius²
Area ≈ 3.14159 * (2.865)²
Area ≈ 3.14159 * 8.193225
Area ≈ 25.685 square feet
Therefore, the approximate area inside the circular park is approximately 25.685 square feet.
C = 2πr
where C is the circumference and r is the radius of the circle.
In this case, we are given that the circumference is approximately 18 feet, so we can set up the following equation:
18 = 2πr
Solving for r, we get:
r = 9/π ≈ 2.864 feet
Now we can use the formula for the area of a circle:
A = πr^2
Substituting the value we found for r, we get:
A = π(2.864 ft)^2 ≈ 25.85 ft^2
Therefore, the approximate area inside the circular park is approximately 25.85 square feet.
solve these eqautions.show solutions on a number line. lx-7l=x-7
Whoever answers correctly will win the brainlyest.
Answers
Answer:
x>=7
Step-by-step explanation:
While the equations are practically the same, one is in an absolute value sign and when a number becomes negative in the absolute value sign, it becomes positive. To visualize this, let's say x=6. In the absolute value side it becomes 1 while on the side with no absolute value sign, it becomes -1. So when both equal 0, the x input is the lowest it can be in which case is 7 thus we get our answer x>=7
Yeah, get into this work problem
Answers
what is the value of p ? write your answer as a decimal number.
Answers
Answer:
0.4
Step-by-step explanation:
Here we see the arithmetic sequence 0, 0.1, 0.2, 0.3, 0.4, 0.5, and so on.
The value of p is 0.4.
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Answers
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Please help me and please don’t answer if you don’t know pleaseee!!!!
Answers
Answer:
c
Step-by-step explanation:
A cell phone company offers a rate of $0.05 per minute. What is this rate in cost per hour?
Answers
Answer:
$3.00
Step-by-step explanation:
0.05*60= 3.00
Hope this helps! :) Pls mark brainliest if correct
Answer:
$3
Step-by-step explanation:
$0.05 x 60 minutes = $3
Which expression could represent the identity property of addition?
A) −5 + 0
B) −5 − 5
C) −5 x 0
D) −5 + 5
Answers
Answer:
d -5 + 5
Step-by-step explanation:
-5 + 0 is an expression representing the identity property of addition.
What is Identity property of addition?The identity property of addition says that the sum of 0 and any number is that number.
Given that expressions,
Here (-5 + 0) is representing the identity property of addition.
Hence, the correct option is A) (-5 + 0)
For more references on Identity property of addition, click;
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HELP ASAP I WILL MARK BRAINLIEST AND GIVE POINTS!!!!!! (FAKE ANSWERS REPORTED)
The following figures are not drawn to scale but AB and CD if present) are straight lines. Find x:
Answers
Answer:
x=60
Step-by-step explanation:
y=x
90-30=y
60=y
x=60
180 - 90(A&C right angle) =90
90 -30 (from B) = 60
Thus x = 60
The answer is 60
What is the answer to this?helppp
Answers
Answer: 6
Step-by-step explanation:
divde 5 by 2 them multiply your exponet
Answer:8/125
Step-by-step explanation:
What is the surface area of this triangular prism?
Please help!!!! I'll give brainliest if your answer is correct and thorough
Answers
Answer:720in^2
Step-by-step explanation:
Find common denominators and add. Reduce answers to lower terms. 1/4+ 1/6
5/12
1/10
2/10
2/6
Answers
4 x6
1x4
6x4
6/24+4/24 = 10/24
10/24 = 5/12
Answer:
the other guy s right guy job beat me to it lol
Step-by-step explanation:
1 x6
4 x6
1x4
6x4
6/24+4/24 = 10/24
10/24 = 5/12
Please I don't have much time Help me please!!!
Answers
Answer:
C
Step-by-step explanation:
The shape moves to the left by 8 and up by 7.
Answer:
C
Step-by-step explanation:
on the x axis the shape moves 8 to the right and on the y it moves 7 up
100 Points: Please answer all questions correctly.
Mathematics middle school Analyze And Graph Relationships assignments
Final Assignment
Answers
Answer:
2
Step-by-step explanation:
3*0=0$
3*1=3$
3*2=6$
3*3=9$
3*4=12$
6*0=0
6*1=6
ect.
The relationship is 2 because 6/3=2
The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y.
On a graph titled Tammy's Pay, number of hours is on the x-axis and pay in dollars is on the y-axis. A line goes through points (2, 18) and (8, 42).
What does the y-intercept represent?
Answers
Answer: The y-intercept is the initial amount Tammy earns.
Step-by-step explanation:
Always remember that for graphs, the y-intercept is the initial amount. In this case, it would be the initial amount or the very first amount Tammy earns. If the line goes through the origin (0,0), that means that Tammy earns $0.00 for 0 hours of working.
Which statement below is the correct definition for denoting similar objects?
Similar objects have proportional angles and proportional sides.
Similar objects have proportional angles and congruent sides.
Similar objects have congruent angles and proportional sides.
Similar objects have congruent angles and congruent sides.
Answers
Answer:
i guess. Similar objects have congruent angles and proportional sides.
Answer:
Similar objects have congruent angles and proportional sides.
Step-by-step explanation:
I need help with number 8
Answers
Answer:
C. The circle is circumscribed about ΔABC
Explanation:
The circumscribed circle of a polygon is a circle that passes through all the vertices of the polygon.
Answer:
C
Step-by-step explanation:
Which is the correct answer
Answers
Answer:
The mode is equal to the minimum
Is the correct answer
Step-by-step explanation:
In this case,
Mean = (52+48+48+54+50)/5
Mean = 50.4
The Median = 50,(the middle value)
Mode = 48 (the value that appears most often)
Now, the minimum value(smallest value) of the data set is 48
so,
The mode is equal to the minimum
Answer: the mode is equal to the minimum
Step-by-step explanation:
The project will cost $___.
Answers
Answer:
$2.03
Step-by-step explanation:
$0.98
+$1.05
What is the solution to this equation?
−1/5(x+1 3/4)=−2 1/
2
Responses
x=21 1/4
x equals 21 and 1 over 4
x=14 1/4
x equals 14 and 1 over 4
x=10 3/4
x equals 10 and 3 over 4
x=3 3/4
I WILL GIVE BRAINLYEST
Answers
Answer:
10 3/4
Step-by-step explanation:
\(x + \frac{7}{4} = - \frac{5}{2} \times - \frac{5}{1} \\ x = \frac{25}{2} - \frac{7}{4} \\ x = \frac{43}{4} \\ x = 10 + \frac{3}{4} \)
you don't have to do them all but thank you so much for you help
Answers
Answer:
52-LCM=40 53-LCM=18 54-LCM=24 55-LCM=56
Step-by-step explanation:
which of the following relations is not a function
Answers
Answer:
c
Step-by-step explanation:
{(1,-3) , (2,4) 2,1ehjejeheje
Writing equations to find Unkown Notes
Can sombody write me some guided notes about that topic?
Answers
Someone please solve this for me, I'm offering 30 points, I need a screenshot of your work and a explanation of how you did it to fully understand. Thank you, This is a Middle school level question . I need you to work this on paper, take a picture and attach it to your answer.
Answers
I hope this is what you needed
Explanation: There are a total of 14 movies since each of the numbers shown above represents the number of minutes in a movie so all you have to do is count how many movies have 85-89, 100-114, 115-129, 130-144 minutes
Please put details! I need it! Please and thank you!
Answers
Answer:
.
Step-by-step explanation:
A,0.
B. To plot the three points well, you need to look at where the numbers are. Now, lets says its 1 -1 go to where it says -1 and find 1. For -1 1.25 go to the 1 and now split a line into 1/4 making it 1.25. Last but not least go to -2 and cut a line into 3/4.
Hope this helps<3.
Write each expression without the absolute value symbol. |7-(12-x)|
Answers
The expression without the absolute value symbol is given as follows:
If x > 5, then |7 - (12 - x)| = -5 + x.If x = 5, then |7 - (12 - x)| = -5 + x.If x < 5, then |7 - (12 - x)| = 5 - x.What is the absolute value function?The absolute value function is defined by the following piecewise rule, depending on the input of the function:
|f(x)| = f(x), x ≥ 0.|f(x)| = -f(x), x < 0.The expression for this problem is given as follows:
7 - (12 - x).
The critical value of x is obtained as follows:
7 - (12 - x) = 0
7 - 12 + x = 0
x = 5.
Hence the expression is given as follows:
If x > 5, then |7 - (12 - x)| = -5 + x.If x = 5, then |7 - (12 - x)| = -5 + x.If x < 5, then |7 - (12 - x)| = 5 - x.More can be learned about the absolute value function at https://brainly.com/question/3381225
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This year, Brad is a photographer for his school newspaper. He takes 5 color photos for every 2 black-and-white photos.
Complete the table.
Color photos 5 15
30
Black-and-white photos 2
8
Answers
Color 5 - 2 Black-and-White
Color 10 - 4 Black-and-White
Color 15 - 6 Black-and-White
Color 20 - 8 Black-and-White
Color 25 - 10 Black-and-White
Color 30 - 12 Black-and-White
Answer:
Colored photo I Black photo
5 2
10 4
15 6
20 8
25 10
30 12
35 14
40 16
45 18
50 20
PROPORTIONS!!!
A basket contains only apples and oranges, and the ratio of apples to oranges is 9:7. If there are 128 pieces of fruit in he basket, how many are oranges?
Answers
Answer:
There are 56 oranges in the basket, since the ratio of apples to oranges is 9:7. To calculate this, you can use the proportion method. First, set up a proportion using the ratio of apples to oranges (9:7):
9/7 = x/128
Then, solve for x.
x = (9/7) * 128
x = 112
Answer:
72 and 56
Step-by-step explanation:
Ratio of apples in the basket = 9x
Ratio of oranges in the basket = 7x
Total fruits in the basket = 128
So, Apples + Oranges = Total fruit
9x + 7x = 128
16x = 128
x = 128 ÷ 16
x = 8
∴ So, number of apples = 9x --> 9*8 = 72 apples
number of oranges = 7x --> 7*8 = 56 oranges
Hope this helps. Pls mark me the BRAINLIEST!
I need 3 reasons why it is important to keep gorillas from becoming extinct. I'll give brainliest. I know that this isnt math but more people answer questions that are in math so... yea
Answers
Answer:
1. gorillas are able to spread the seeds of larger fruits that other, smaller animals are incapable of consuming. When gorillas consume a fruit and later expel the seeds, they are helping to perpetuate diverse, supportive ecosystems.
2. The forest will never be same if the gorillas are gone. Illegal coltan mines (minerals used in smart phone and computer production) are controlled by militia in the gorilla habitat (DRC) and contribute to habitat destruction and poaching.
3. Many local indigenous tribes and communities living alongside the gorilla habitat consider the gorillas to be their patron gods. The Kisimba clan (Bahumba) believe they descended from the gorillas. Their traditional tale tells a story of a gorilla rescuing a man that was lost and stuck high up in a tree. To save the man, a gorilla climbed up the tree and gently placed him on his silver back before carrying him back to safety.
Step-by-step explanation:
Ultimately we cant let gorillas go for much more reasons then just these 3 and they are used for so much in all of their respected environments.