The equation for the magnitude of the acceleration of the system is equals to the
a = g (m₂ - m₁μ꜀ cosθ - m₁sinθ )/(m₁ + m₂ ).
We have, two blocks with masses say m₁ = 3.8 kg and m₂ = 8.6 kg inclined on the plane at angle θ=39° above the horizontal. Also, cofficient of friction, μ=0.39. According to problem, In case of block 1 , accelerate up the inclined plane, Then forces along y-axis,
mass m₁gcosθ , where g is gravity constant moves vertically downward normal force Fₙ moves upwardNet force during vertical motion = 0
=> Fₙ - m₁gcosθ = 0 --(1)
On horizontal direction,
Tension T acts upward acceleration, "a" upward motionforce of friction, f꜀ acts downward m₁gsinθ moves downwardAgain net force = 0
=> T - f꜀ - m₁gsinθ = m₁a --(2) ( using Newton's second law)
For block 2, Vertical motion
mass m₂g moving downward T acting upward Acceleration, " a"acting downwardSo, net vertical force = 0
=> - T + m₂g = m₂a --(3)
Now, f꜀ = μ꜀ Fₙ= μ꜀ m₁g cosθ
so, T - μ꜀ m₁g cosθ - m₁gsinθ = m₁ a --(4)
Using the equation (4) and (3), we have to determine the equation for acceleration, a.
Adding (3) from (4),
m₁ a + m₂a = -μ꜀ m₁g cosθ - m₁gsinθ + m₂g + T - T
=> (m₁ a + m₂a) = g ( -m₁cosθ - m₁ sinθ + m₂)
=> a ( m₁ + m₂ ) = g (-m₁μ꜀ cosθ - m₁ sinθ + m₂)
=> a = g (- m₁μ꜀ cosθ - m₁sinθ + m₂)/(m₁ + m₂ )
by plugging all the above values we can calculate the magnitude of acceleration.
Hence, required equation is a = g (m₂ - m₁μ꜀cosθ - m₁sinθ)/(m₁ + m₂) .
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Complete question:
Referring to the image to the above figure , the mass of block 1 is m1=3.8 kg while the mass of block 2 is m2=8.6 kg. The coefficient of friction between m1 and the inclined surface is μ=0.39. The inclined surface is at an angle θ=39∘ above the horizontal. Using the variables from the problem statement together with the acceleration due to gravity, g , write an equation for the magnitude of the acceleration of the system. hint: based upon the numeric choices, block 1 will accelerate up the incline while the suspended block, block 2, accelerates vertically downward.
choose the right multiplacation equation that is correct A.16x6=22 B.16x6=636 C.16x6=96 D.16x6=123
Answer:
C. 16 · 6 = 96
Step-by-step explanation:
16 · 6 = 96, therefore option C is the correct choice :)
Answer:
The right multiplication equation that is correct is (C.16×6=96)
Find the area of a rectangle with a length of
14 ft and width of 28 ft.
Answer:
392 ft^2
Step-by-step explanation:
area = length * width
a = lw
392 = 14 * 28
Don't forget the unit is ft^2 since we are finding the area of a 2-dimensional shape in feet!
Answer:
Step-by-step explanation:
the area of a rectangle is L*W
A=14*28=392 ft^2
The measure of an angle is 18.2°. What is the measure of its complementary angle?
simplify the expression 3x+2x
Answer:
=5x
Step-by-step explanation:
3x+2x
=3x+2x
=x+x+x+x+x
=5x
Step-by-step explanation:
step 1. 3x + 2x = 5x. that is the answer.
There are 15 books on a shelf. 9 of these books are new. The rest of them are used.
Answer: 7
Step-by-step explanation:
15-9 =
9 10 11 12 13 14 15
1 2 3 4 5 6 7
7 books were used.
hello help me please
Answer:
Step-by-step explanation:
divide each by 2 and see if you can get a proper fraction
Can someone help me with this? #1 first please
Answer:
Ok so you did the first box of statements and reasons correct. Now let us look at the second box of statements and reasons. There is also one more given statements and reasons and it is RS is congruent to TS. That is going to be a given one. Now if you look at the prove sections, it says to prove angle RSV is congruent to angle TSV. In the comments section let us find the answer together. I know the answers, but you give it a try too. I will give you a hint that the triangle is a AAS postulate (Angle-Angle-Side).
Please please give answer for this question
Answer:
The remaining piece measures 16 m
which agrees with answer D
Step-by-step explanation:
In order to make a square of area 25 m^2, we need a square of side 5 m ,
Area of square = side^2
25 = side^2 then each side = 5 m
therefore the person needed 4 times 5 m to create the square, that is 20 m for the square. Therefore the piece that is left can be calculated with the difference:
36 m - 20 m = 16 m
The remaining piece measures 16 m
T-shirts are on sale for 40% off. The original price per t-shirt is $20. What is the total cost, in dollars, of 8 of these t-shirts at the sale price, including an 11% sales tax?
Answer:
$106.56
Step-by-step explanation:
discounted price of each shirt is $12
12 x 8 = $96 for 8 shirt
96 x 1.11 = $106.56
Find the value of x.
х
50°
The unknown value of x from the diagram is 80 degrees.
The given diagram is an isosceles triangle.
The base angle of an isosceles triangle are equal
The sum of angle in a triangle is also 180 degrees. Hence:
x + 50 + 50 = 180
x + 100 = 180
Subtract 100 from both sides
x + 100 - 100 = 180 - 100
x = 80 degrees
Hence the unknown value of x from the diagram is 80 degrees.
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Gracie went for a morning walk and met her old friend Suzie and her daughter Jennie after a long time. Gracie asked Suzie how old is Jennie to which Jennie replied “In two years I will be twice as old as I was three years ago”. How old is Jennie?
using binomial expansion evaluate (0.99)^6
Answer:
.92367 I think. I'm I'm wrong I'm sorry
what is 1/2 times 5/2
Answer:
= 5/4
Step-by-step explanation:
Multiply across, so we will multiply our numerators first.
1 x 5 = 5
Then we multiply our denominators
2 x 2 = 4
Thats why your answer is 5/4
Hope this helps (:
Suppose a line parallel to side Y Z of AXY Z intersects sides XY and XZ at points N and M, respectively. Which of the
following is false? (1 point)
Help!! Find the area of the triangle.
Answer:
Area = 60.0 units²
Step-by-step explanation:
First, let's find the height of the triangle using Pythagorean Theorem:
Height = √(11² - 8²)
= √57
Height = 7.5 (nearest tenth)
✔️Find the area:
Area = ½*base*height
Base = 2*8 = 16
Height = 7.5
Plug in the values
Area = ½*16*7.5
Area = 60.0 units² (nearest tenth)
Is the table linear or nonlinear?
X 0 1 2 3
Y 2 4 8 16
Answer:
It is linear
Step-by-step explanation:
The Y goes up by the same amount as the X (by 4 Y's per 1 X)
A- g(x)=|x+5|+5
B-g(x)=|x-5|+5
C-g(x)=|x|+5
D-g(x)=|x-5|
Answer:
if anything, I would say C. I can't see the image too clearly, but I can see what you typed out
Step-by-step explanation:
PLEASE HELP ASAP WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!!!Solve the system of equations.
y = 2x + 3
2y = 4x + 10
A. Infinite Solutions
B. (-2,3)
С. (4,-1)
D. No Solution
Answer:
D. no solution
Step-by-step explanation:
substitute y = 2x + 3 in
2y = 4x + 10
gives 2(2x+3) = 4x + 10
4x - 4x = 10 - 6
therefore the equation has no solution
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emissions of 240 pounds per 100 miles, with a standard deviation of 20 pounds. A control group of 14 vehicles using regular gasoline showed mean CO2 emissions of 252 pounds per 100 miles with a standard deviation of 15 pounds. A quick comparison of the sample variances suggests that the population variances are:
a. probably equal.
b. probably unequal.
c. incomparable.
Answer:
Probably unequal ( B )
Step-by-step explanation:
experimental group = 10
using 85% ethanol gasoline
mean = 240 pounds per 100 miles
standard deviation = 20 pounds
control group = 14 vehicles
using regular gasoline
mean = 252 pounds per 100 miles
standard deviation = 15 pounds
comparing the sample variance of each group shows that they are probably unequal using the equation below
Variance for a sample set of data = ∑ ( x - X ) ^2 / n - 1
where n = number of events
X = mean value
x = value of events
Traveling Salesperson Suppose you are a salesperson who must visit the following 23 cities: Dallas, Tampa, Orlando, Fairbanks, Seattle, Detroit, Chicago, Houston, Arlington, Grand Rapids, Urbana, San Diego, Aspen, Little Rock, Tuscaloosa, Honolulu, New York, Ithaca, Charlottesville, Lynchville, Raleigh, Anchorage, and Los Angeles. Leave all your answers in factorial form.
a. How many possible itineraries are there that visit each city exactly once?
b. Repeat part (a) in the event that the first five stops have already been determined.
c. Repeat part (a) in the event that your itinerary must include the sequence Anchorage, Fairbanks, Seattle, Chicago, and Detroit, in that order.
Answer:
1. 23!
2. 18!
3. 19!
Step-by-step explanation:
1.
We start by the order that we were given. Dallas is the first City with los Angeles being the last.. a total of 23 states.
Dallas can be placed in any of the 23 positions.
Tampa can be placed in any of the remaining 22 positions and so on.
Such that we have
Total number of ways = 23x22x21...x1 ways
= 23!
2. If first 5 cities have been determined,
23-5 = 18 cities
We can arrange in (23-5)! Ways
= 18!
3. We consider these 5 cities to be 1 unit, so we have to arrange the remaining 18 cities plus this single unit.
Total number of ways = (18+1)!
= 19!
I need help with the both of these please If you help I will mark you brainLIEST
Answer:
Step-by-step explanation:
plz answer correctly 60 isnt the answer
Answer:
24
Step-by-step explanation:
multiply the suit, wig and talent
3x2x4 = 24
6. The mean of 9, 14,x, 16, 7 and 18 is 11.5. Find the value of x
Answer:
Given
11.5= 9+14+x+16+7+18/6
⇒x=11.5×6−9−14−16−7−18=5
∴x=5
Step-by-step explanation:
Hope it is helpful.....
Sandy spent 20% of x hours at her part-time job.What is x if 20% of x is about 26 hours?
1. What is 2 added to 1?
4
in
Answer:
3
Step-by-step explanation:
what is the 4 in for?
Answer:
2+1=3
I think you copy pasted something else like the '4 in'.
Step-by-step explanation:
Noah raised $54 to support the animal shelter, which is 60% of his fundraising goals. Write an equation to represent the situation. (In your answer, write 60% as 60/100.)
Answer:
54 x 1.4 = 54 x 140/100 = 75 60/100
75.6
Step-by-step explanation:
Find the slop of the line given y - 1 = -5(x + 19)
Answer:
m = − 5 is slope
Step-by-step explanation:
Pl help It’s for a grade I’ll give you a Brainly
Answer:
8. d
9. c
Step-by-step explanation:
I can give you an explanation if u want
Ms. Jones is making the yearbook. She has 7 pages with 153 photos on each
page. How many photos are there in the whole yearbook?
Answer:
1,071
Step-by-step explanation:
7 × 153 = 1071
plese follow me
ratio of 12 seconds to 1 hour
12:3600
1:300
I edited it lol
hope that helps