12/16/20

physics question
Scientists are experimenting with a kind of gun that may eventually beused to fire payloads directly into orbit. In one test, this gun acceleratesa 5.0-kg projectile from rest to a speed of 4.0 !... more
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12/15/20

Let f(x) = ex tan x. (a) Find f′(x) (b) Find the slope of the line tangent to the graph of f(x) = ex tanx at the point (1, e tan(1))
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12/15/20

If g is twice differentiable function and ...
If g is twice differentiable function and f(x) = xg(x2) find f′′(x) in terms of g,g′, ′′and g . Simplify your answer as much as possible. (Hint: to say that g is twice differentiable means... more
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12/15/20

Find velocity, acceleration, height.
A rock thrown vertically upward from the surface of the moon at a velocity of 4 m/sec reaches a height of s=4t−0.8t2 meters in t sec.a. Find the​ rock's velocity and acceleration at time t.b. How... more
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12/15/20

length curve calculus
Determine the length of the curve y(x) = 1/4x2-1/2ln(x) on the interval (1,2)
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12/15/20

16) A coil has an inductance of 3 Henry’s, what will be the voltage drop across it if the frequency is 60 HZ and current is 4 amps?
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12/14/20

8) The power produced in a electrical circuit with a current flow of 10 amps and a voltage of 277 volts DC is?
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12/14/20

Physics- Springs and Swings
A pendulum made of a string of length 10.7 m and a spherical bob of mass 9.1 kg and negligible raius swings in a vertical plane. The pendulum is released from an angular position 59 ◦ from vertical... more
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12/07/20

The question is in the description
The top and bottom margins of a poster are 2 cm and the side margins are each 3 cm. If the area of printed material on the poster is fixed at 382 square centimeters, find the dimensions of the... more
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11/16/20

Compute the volume in the first octant
Use a double integral to compute the volume in the first octant above the region in the xy plane bounded by y=1-x2 , y=0, and x=0; and between the planes z=2-y and z=1
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01/01/20

Applied Max and Min
If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without... more
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12/17/19

Physics kinetics circular motion
Assume a 80kg student (A) holds onto a frictionless rope spun over a frictionless pulley with a 60kg student (B) holding the other end. If the students are allowed to move, the acceleration of... more
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12/14/19

Fluid Dynamics Question
A patient is to be given a blood transfusion. The blood is to flow through a tube from a raised bottle to a needle inserted in the vein. The inside diameter of the 4.0 cm long needle is 0.40 mm and... more
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12/14/19

Related Rates - A Rectangle is Expanding
A 9 by 4 centimeter rectangle expands in such a way that the 9–centimeter side is expanding at the rate of 5 centimeters per second and the proportions of the rectangle remain constant. At what... more
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12/12/19

Precalc Help for Homework
For the function y= ((30x+2)/(x^2+x-51)) , as x approaches positive infinity what is y approaching?
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12/07/19

A 100 g bullet is fired from a rifle that has a 0.60 m long barrel.
The origin of the movement is considered the place where the bullet begins to move, the force (in newtons) exerted on the bullet due to the expansion of the gas is 15000 + 10000x - 25000x2 where... more
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12/05/19

Find all complex zeros of a polynomial function. Give the exact values. List multiple zeros as necessary.
f(x)=2x5+11x4+17x3+21x2+45x
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12/04/19

Quadratic function

Write an equation for the quadratic function which passes through the point (0,-12) and has x-intercepts at x=-6 and x=2
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11/30/19

How do you find all the complex zeros/roots of a polynomial?
On my homework I have multiple questions asking for all complex zeros/roots. An example that I want answered is if f(x) = 5x^6-30x^5-43x^4+228x^3+22x^2+96x+16 and one of the zeros/roots is ... more
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11/29/19

Trig - Converting rectangular equation to polar

(x-1)^2+(y+1)^2=2 to polar Pls help
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11/27/19

Minimum and maximum values
A particle moves around the ellipse (y/3)2 + (z/2)2 = 1in the yz-plane in such a way that its position at a time t is r(t) = (3 cos t)j + (2 sin t)k.Find the maximum and minimum values of |v| and |a|
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11/08/19

Ten pounds of mixed birdseed sells for $6.33 per pound. The mixture is obtained from two kinds of birdseed, with one variety priced at $5.67 per pound and the other at $8.97 per pound. How many pounds
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11/07/19

Systems of linear equations

The perimeter of a quadrilateral (four sided polygon) is 57 inches. The longest side is four times as long as the shortest side. The other two sides are equally long and are 4 inches longer than... more
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11/06/19

How do I find any local maxima/minima of f(x, y, z) = (x^2)yz on the intersection of the planes x + y + z = 40 and x + y − z = 0 using the Lagrange multiplier method?
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11/04/19

Magnitude of the torque the loop experiences
A circular wire loop of 28 turns and radius 2.18 cm carries a current of 1.25 A in a magnetic field of 0.250 T. If the plane of the loop is oriented parallel to the field, what is the magnitude of... more
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