In an experiment similar to Perrin's the ratio of particles at 7.00 cm from the bottom of the column compared to the number of particles at the bottom of the column is 0.297:1. What will be the ratio of particles at a height of 15.0 cm from the bottom of the column be compared to the number of particles at the bottom of the column?

calculate: (a) the average of fex) = Cos (3x) from II to TT (い th average of f(x) = x² from (-10) to (l0) (c) th average of frxl = 3x from (-3) to (3)

An atom of rhodium (Rh) has a diameter of about2.7 * 10-8 cm. (a) What is the radius of a rhodium atom inangstroms 1A° 2 and in meters (m)? (b) How many Rh atomswould have to be placed side by side to span a distance of6.0 mm? (c) If you assume that the Rh atom is a sphere, whatis the volume in m3 of a single atom?

4 Su24 on Question 1 (Mandatory) (10 points) ✓ Saved The correct formula to calculate a Percent Error between experimental value X and accepted value A is O al X-A 100% X+A b) IX-AI 100% Ob) A Oc) IX-AI 100% (X+A) 1/2 d) IX+AI 100% (X-A) acer ) 0:16:50 remain

The rhinovirus, one cause of common cold and flu, has a diameter of 30 nm. How many of these particle could line up side by side on a line that is 1.0 inch long?

Consider the solutions from the last problem for the three cases (a), (b), and (c): (a) x(t) = a cos(wot) (b) x(t) = a exp(-ßt) [(B/w1) sin(wit) + cos(wit)] (c) x(t) = a exp(-wot) (wot + 1). %3| To understand and compare these functions, use a graph- ing software to plot them in a dimensionless form, using x(t)/a as the vertical axis and 5 = wot as the variable for the range wot = [0, 67]. In (b) take B2 = w3/9.

In a certain region, J = (2ya_x + xza_y + z^3 a_z) sin 10^4 t A/m find rho_v if rho (x, y, 0, t) = 0.

Use the approximate values from this table to solve the problem. How many heartbeats are there in a lifetime?

(Unit conversion) A hydrogen atom has a diameter of 1.06 x 10-10 m. The nucleus of the hydrogen atom has a diameter of approximately 2.40 × 10-15 m. (a) For a scale model, represent the diameter of the hydrogen atom by the playing length of an American football field (100yards = 300ft) and determine the diameter of the nucleus in millimeters. (b) Find the ratio of the volume of the hydrogen atom to the volume of its nucleus.

Q. 9 : If M = mass of wire, p = density of wire, R = radius of wire, r = change in radius, L = original length of wire and 1 = change in length, then Poisson's ratio is given by %3D %3D (СET-2004) Mrp (a) Mr (b) 1R I * RIp Mr (c) 1R° pl Mrp * R I (d)