Wednesday
May 22, 2013

Posts by Hank


Total # Posts: 20

Physics
An object (m=2.85 kg) is attached to a disk-shaped pulley. The diameter of the pulley is 0.242 and its weight is 7.272 N. Suppose the object is allowed to fall (a) What is its linear acceleration? (b) What is the angular acceleration of the pulley? (c) How far does the bucket ...

math
The scale factor for two similar retangles is 3. If the area of the smaller rectangle is 8m^2, what is the area of the larger rectangle.

Math-factoring
factor 5m^2-m-20

Math
Find relative extrema of f(x)=x^3-3x^2+4

Calculus
Given y=(x^2+2)sqrt(x^3-8x) Find dy/dx

Calculus
a)Find dy/x where y=tan(4=x^3)^4? B) Find relative extrema of f(x)=x^3-3x^2+4

chemistry
When a 0.5725 g sample of Lysol was titrated with 0.100 M NaOH, an endpoint was obtained at 15.00 mL. What is the percent of HCl in the Lysol sample?

Calculus
find the area under the curve y = x^2 + x from the origin to the line x = 3

Calculus
Find the derivative of y = 3x+2/x+1

calculus
When the area in square units of an expanding circle is increasing twice as fast as its radius in linear units, the radius is (a) 1/4pi (b) 1/4 (c) 1/pi (d) 1 (e) pi

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