Thursday
December 12, 2013

# Posts by drew

Total # Posts: 223

calculus,1
we got a few examples in class but not understanding it at all

calculus
Can someone please show steps as I am having a hard time understanding. The position (in meters) of a particle is modeled by y=x^3-12.5x^2+51x-67.5, where xis in seconds. Find the max, min and point(s) of inflection.

calculus,PSS
help

calculus
This is just for study for exam coming up and says it could be worth up to 12 marks. Not understanding vry well the two

calculus
The position (in meters) of a particle is modeled by y=x^3-12.5x^2+51x-67.5, where xis in seconds. Find the max, min and point(s) of inflection.

calculus
A balloon is being filled at a rate of 4000 cm^3/min. How fast is the surface area of the ballon increasing when the radius is 125 cm? V=4/3pir^3, SA=4pir^2

physics
A certain dog whistle operates at 23.5 kHz, while another (brand X) operates at an unknown frequency. If neither whistle can be heard by humans when played separately, but a shrill whine of frequency 9200 Hz occurs when they are played simultaneously, estimate the operating fr...

Physics (Energy and Momentum)
You are given V and are solving for dM/dt what do you set it equal to?

physics
what is the wave equation?

physics
FM radio signals are electromagnetic waves transmitted between frequencies of 88 MHz and 107 MHz. Find the range of wavelengths for these signals. largest___m smallest___m

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