02/03/21

Calc Leaky bucket problem
A bucket is filled with sand so that the total mass (sand and bucket) is 15 kgs. The bucket is to be lifted to the top of a 10 meter tall building by a rope of negligible weight. However, the... more
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02/02/21

Advanced Physics
Suppose we consider a beam of neutrons incident upon a thin target with an intensityof 1012 neutrons/cm2-sec. Suppose further that the total cross section for the nuclei inthis target is 4 b. Using... more
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02/02/21

(3x^7)^4=cx^n solve for c
(3x^7)^4=cx^n solve for c
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02/02/21

Find the area of the parallelogram that has adjacent sides v = i-2j+3k and w=i-3j-2k
The area of the parallelogram is ?
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01/25/21

rolling with slipping
A spherical shell of mass M and radius R rolls with slipping down an incline of length D as shown in Figure 7. Icm = 2/3MR^2 .Angle of the inclined plane is θ and the coefficient of kinetic... more
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01/23/21

A racing car traveling along a straight track changes its speed from 12.0m/s to 3.63m/s over a distance of 8.67m. Calculate how much time this takes.
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01/07/21

Line integral along the curve
Find the work done by a force ->F(x,y,z) = <xz, y, xy> along the curve C: ->r(t) = <4cos(t), 4sin(t), 3t> from point A(0 , 4 , 3(pi)/2) to B(-4, 0 , 3(pi) ).
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01/04/21

Work out the value of a if when (Algebra 2)
f(x) = ax^3 - 3x^2 + 3x - 3 is divided by (2x-1) the remainder is -2.
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11/27/20

sos confused ...Ellipse word problem .What's the planet's orbit (distance in millions of miles) about the star?
A planet moves in an elliptical orbit with a star at one of the foci. The perihelion​ (the smallest distance from the planet to the​ star) is 128.03 millions of miles and the aphelion​ (the largest... more
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11/25/20

Caluculus Question
A pool in the shape of a hemisphere with a radius of 7 feet is filled with 6 feet of water.  Letting y  be the distance from the bottom of the hemisphere, set up the integral that would be used to... more
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11/23/20

Find the vertical and horizontal asymptotes, domain, range, and roots of f(x)=−(1/x−3)+2
How would you explain this math question?
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11/09/20

Finding Velocity, Acceleration and if the particle is increasing or decreasing
The position of an object moving along a line at any time 𝑡 ≥ 0 is given by the function 𝑠(𝑡) = 𝑡3 − 9𝑡2 + 18 , where s is measured in feet and t is measured in seconds. Find velocity of particle... more
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11/06/20

Find the arc length on the interval for t between 0 and 2 inclusive for the curve
Find the arc length on the interval for t between 0 and 2 inclusive for the curve described with the parametric equations: x = 3t2, y = 2t3 + 1. (4 points)answer choices
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11/04/20

What percentage of total flight time is spent at the top 10% of their jumping height?
Basketball players, volleyball players, and other jumping athletes often seem to hang in the air for a long time. This is because they spend a comparatively high percentage of their total flight... more
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11/03/20

Please help me I don’t understand

Given: F(x) = x + 2 and G(x) = 3x + 5(F+G) (x) =A. 3x+7B. 4x+7C.3x^2+7
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11/03/20

Solve the system by Elimination

−3x2+y=−18x+29−3x2−y=18x−25
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11/02/20

calculus functions integration by parts
Which of the following functions of x can be integrated with respect to x without integration by parts, and purely using integration by u-substitution and the knowledge of the antiderivative of the... more
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10/29/20

simplify (√2/2)•(cosx+sinx) square root is only in numerator*
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10/24/20

How do I solve this Physics question? Help Please!
Spiderman, whose mass is 78.0 kg, is dangling on the free end of a 11.8-m-long rope, the other end of which is fixed to a tree limb above. By repeatedly bending at the waist, he is able to get the... more
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10/22/20

Write an equation of the parabola that passes through the point (3,−30) and has x-intercepts −2 and 18. Then find the average rate of change from x=−2 to x=8.
An equation is  y=__?The average rate of change is __?
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10/15/20

How many molecules are in one mole of caffeine?
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10/02/20

Calculate the moments M_y and M_x and the center of mass of a lamina with density p=1 bounded by the curves y = 5 -|x| and y = 1 + |x|.
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10/02/20

Hannah can paint a room in 9 hours. Destiny can paint the same room in 12 hours. How long does it take for both Hannah and Destiny to paint the room it they are working together?
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09/25/20

What is the molar mass (in g/mol) of the unknown compound?
Suppose that you add 26.0 g of an unknown molecular compound to 0.250 kg of benzene, which has a KfKf of 5.12 oC/m. With the added solute, you find that there is a freezing point depression of... more
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09/24/20

Find the volume of the solid S obtained by rotating the region bounded by the curve y=sin(x^2) and the x-axis from x=0 to x=√π about the y-axis
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