04/06/16

i need to find the length of rectangle
A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 35 square feet. Find the length of the rectangle.
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04/06/16

The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=5 and a root of multiplicity 1 at x=-3. The y-intercept is y= -52.5.
I need help finding a formula for P(x)
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04/05/16

Which polynomial function has a leading coefficient of 1 and roots (7 + i) and (5 – i) with multiplicity 1?
a. f(x) = (x + 7)(x – i)(x + 5)(x + i)b. f(x) = (x – 7)(x – i)(x – 5)(x + i)c. f(x) = (x – (7 – i))(x – (5 + i))(x – (7 + i))(x – (5 – i))d. f(x) = (x + (7 – i))(x + (5 + i))(x + (7 + i))(x + (5 – i)) more
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03/23/16

Find all the numbers such that twice the number is 7 units from 11
Find all the numbers such that twice the number is 7 units from 11
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03/22/16

Which number is 100 more than 78
What number is is the answer to the question 
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03/22/16

Characteristic
In the nuclear equation   222                    4    He +                           2 Rn→   86 The characteristics of the missing particle are (3 points) Z = 84, A = 220 Z = 88, A = 218 Z =... more
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03/17/16

More SPE, KE or GPE?
1. Compared to a marble released from a height of .5 m, a marble released from a height of 1 m has:   a) More SPE at the top of the fall b) More KE at the top of the fall c) More GPE at the top... more
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03/17/16

The following questions refer to a pop-up toy with a mass of .35 kg. The toy’s spring compresses .04 m and has a spring constant of 4,500 N.
The following questions refer to a pop-up toy with a mass of .35 kg. The toy’s spring compresses .04 m and has a spring constant of 4,500 N.   1. What is the spring potential energy before the... more
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03/17/16

What would the total energy of a block be before being dropped?
What would the total energy of a block be before being dropped? And then how would this compare to the average total energy that I have found? In general what is the energy of a solid that is not... more
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03/17/16

Write and equation in slope intercept form for the line that passes through ( - 3,2 ) and is perpendicular to line y = 3 / 2x + 4
1234567891011121314151617181920
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03/16/16

PHYSICS: Minimum Velocity
What is the minimum velocity required of a roller coaster at the top of a vertical loop with a radius of 7 m?   SHOW ALL WORK PLEASE. May use if needed: Fc = Fn + Fg Fc = MAc Ac = v^2/r
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03/16/16

Force and Acceleration
An engineer proposes a new roller coaster for daredevil teens and adults. Along with sizzling vertical loops and horizontal curves, her track would travel beneath a waterfall and into a dark tunnel... more
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03/16/16

(2x+1)/(x-1) - (2x-1)/(x+1)
math heklp
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03/15/16

The equation of the simple harmonic motion of a particle is x=0.05msin1/5(39.2t+5.2). Find the amplitude, Period, frequency and the initial phase of the motion
X=0.05msin1/5(39.2t+5.2)
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03/13/16

Physics Problems (2) : Work & Power
How much potential energy does 8 million kg of water have as it drops 50 m over Niagara Falls? If a 8 million kg of water flows over Niagara Falls each second, calculate the power available at... more
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03/13/16

Physics Problems (2) : Work & Power
A weightlifter lifts a 50 kg barbell 2.5 meters into the air. How much work does she do on a barbell? How much potential energy does the barbell have at the top? If she lifts the barbell in 2... more
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03/13/16

Physics Problems (2) : Work & Power
Calculate the work done you need to do to raise a 9 kg box a vertical distance of 3 meters. Show all work. When the same box is raised the same vertical distance by pushing it up a 5m long ramp,... more
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03/10/16

objects fall toward earth at the rate of 9.8 m/s2 because of centripetal force
this is about forces and newtons laws
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03/09/16

what is 3/4(48p+8r) simplified
This is for my math hw, I'm not doing so well. Can someone help?
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03/09/16

On top of a hill, a rocket is launched from a distance 80 feet above a lake.
On top of a hill, a rocket is launched from a distance 80 feet above a lake. The rocket will fall into the lake after its engine burns out. The rocket's height, h, in feet above the surface of the... more
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03/07/16

What force must pirate push with in order to have the ball roll up the hill at a constant 19 m/s
(Assume Pirate’s push is parallel to the hill’s surface and there is no friction) Pirate is rolling a 82 kg snowball up a 20o Incline. What force must pirate push with in order to have the ball... more
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03/07/16

find a formula for a fourth degree polynomial.
find a formula for a fourth degree polynomial. f(x) with leading coefficient of -2 and zeros of x=-5, x=0, and x=3i. write in complete factored form
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03/07/16

Solve using substitution
2x-y=5 -2x-5y=11
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03/07/16

Solving centripetal force using an equation
A roller coaster car of mass of 300 kg is going through a loop at a velocity of 15 m/s. If the loop has a radius of 12 m, what centripetal force is the roller coaster experiencing?   SHOW WORK
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03/07/16

Solving for Centripetal Force using a Free Body Diagram
A centripetal force of 4000N keeps a 50kg rollercoaster car traveling in a circular path at the top of a loop. Calculate the normal force of the track on the rollercoaster car.   SHOW WORK USING... more
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