12/19/20

Use Stokes Theorem to evaluate a Double Integral

Use Stokes’ Theorem to evaluate double integral S curl F.dS. F(x,y,z)=e^xyi+e^xzj+x^zk, S is the half of the ellipsoid 4x^2+y^2+z^2=4 that lies to the right of the xz-plane, oriented in the... more
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12/17/20

A point moves along the curve 6y=x2 in such a way that when ...
A point moves along the curve 6y=x2 in such a way that when x=6thex- coordinate is increasing at a rate of 2 feet per second. How fast is the y-coordinate changing when x = 6? Is the y-coordinate... more
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12/17/20

what acceleration is required?

Escape velocity is the speed required to break free of a body’s gravitational force. On Earth, escape velocity is roughly 14.7 km/s. What acceleration is required for a rocket to achieve that... more
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12/16/20

Consider the curve defined by the equation x2y2 − 2x = 4 − 4y. Use implicit differentiation to find dy and write the equation of the tangent line at the point (2,2) in dx slope-intercept form.
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12/16/20

Find the coordinates of point P along the directed line segment AB so that AP to PB is the given ratio. A(−6, −9), B(2, −5)

The ratio is 1to 3The coordinates are (   ,   )
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12/13/20

Use our studies about surface integral to parametrize the surface of a sphere of radius R center at the origin.
Use this parametrization to set up the integral to compute the surface area of a sphere of radius R and evaluate the integral.
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12/13/20

please, what is the answer
If a function f is continuous for all x and if f has a relative maximum at (1,4) and a relative minimum at (3,2), which of the following statements must be true?From the following choose the... more
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12/12/20

How long is the baseball thrown in the air
A baseball is thrown at an angle of 24◦ relative to the ground at a speed of 25.1 m/s. The ball is caught 47.7257 m from the thrower. The acceleration due to gravity is 9.81 m/s 2 . How long is it... more
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11/24/20

If the slide is frictionless, what should the person's velocity be at the bottom of the slide in meters/second?
The "Niagara Falls" water slide to waterpark and has a height of 76.0 feet (23.2 meters). Because the slide is not completely vertical the total length of the slide is 90.0 feet (27.4 meters). A... more
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11/24/20

Graphing equations
A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes. Each small box can hold 25 books and each large box can hold 50... more
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11/24/20

Calcukus Question (Implicit Differentiation)

Find the equation of tangent line to the curve y²+x² = y⁴ - 2x at y=1 and x=0
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11/11/20

The block in the drawing has Dimension L0x2L0x3L0
The block in the drawing has dimensions L0x2L0x3L0, where L0=.5m The block has a thermal conductivity of 200 J/(s·m·C˚). In drawings A, B, and C, heat is conducted through the block in three... more
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11/03/20

A cylindrical drill with radius 5 inches is used to bore a hole through the center of a sphere of radius 7 inches. Find the exact volume of the ring-shaped solid that remains.
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10/31/20

hydrostatic pressure and force
An aquarium 7 m long, 4 m wide, and 3 m deep is full of water. Find the following:the hydrostatic pressure on the bottom of the aquarium     ,the hydrostatic force on the bottom of the... more
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10/31/20

An office supply company sells x permanent markers per year at $P per marker. The price- demand equation for these markers is given by P = 10 − 0.001x;
1- Write the Revenues function (10%)2- What level of production and what price should the company charge for the markers to maximize revenues? (10%) The total cost of manufacturing is: C(x) = 1000... more
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10/31/20

Concavity, Inflection Points and Increasing/Decreasing fun!
I need help with the following:Suppose thatf(x)=3x^2−16.(A) List all critical numbers of f. If there are no critical numbers, enter 'NONE'.Critical numbers = ___0____(B) Use interval notation to... more
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05/20/20

Use Cramer's Rule to solve (if possible) the system of equations.
-2x +3y -5z = -114x -y +z = -3-x -4y +6z =15It would help a lot if you could show your work. Thanks!
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04/30/20

Calculus derivative
W(t)={17/2−3/2cos(πt/6) for0≤t≤6 10−1/5(t−6)^2. for6<t≤10The depth of a river at a certain point is modeled by the function  W defined above, where  W(t) is measured in feet and... more
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04/08/20

laplace transform
A mass of 1 slug is suspended from a spring whose spring constant is 9 lb/ft. The mass is initially released from a point 1 foot above the equilibrium position with an upward velocity of... more
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04/08/20

laplace transformation
A mass weighing 4 pounds is attached to a spring whose constant is 2 lb/ft. The medium offers a damping force that is numerically equal to the instantaneous velocity. The mass is... more
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03/23/20

Refer to question below
While bowling a cricket ball, Carl Spackler holds the ball 0.9m from the axis of rotation at his shoulder. The movement takes 0.42s and, at the moment of release, the ball has a tangential linear... more
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03/07/20

2. A large rocket has a mass of 2x10^6 kg at takeoff, and its engines produce a thrust of  2.50x10^7N. Neglect air resistance.
a. Draw the free-body diagram for the rocketb. Find its initial acceleration if it takes off vertically.c.  How long does it take to reach a velocity of 120 km/h straight up, assuming... more
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02/28/20

Can anybody answer me this question will be thankful respected sirs
ackaging Costs A rectangular box is to have a square base and a volume of 30 ft3. The material for the base costs 41¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top... more
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02/26/20

Equation with two variables
90y+55x=9545and x+y=115what is x & y??
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02/26/20

A vertical line drawn through a normal distribution at z = –0.80 will separate the distribution into two sections. The proportion in the larger section is 0.7881. true or false?
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