Which of the following is not a fluid?
a.
carbon dioxide
c.
seawater
b.
hydrogen
d.
wood

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart