Questions asked
P8.64 The cantilever beam shown in Figure P8.64a is subjected to load magnitudes $P_z$ = 2.8 kips and $P_y$ = 8.3 kips. The flanged cross section shown in Figure P8.64b has dimensions $b_f$ = 8.0 in., $t_f$=0.62 in., $d$= 10.0 in., and $t_w$ = 0.35 in. Using $L$= 84 in., determine (a) the bending stress at point A. (b) the bending stress at point B. (c) the angle $\beta$ that the neutral axis makes with the +z axis. Note that positive $\beta$ angles rotate clockwise from the +z axis. L A y B C $b_f$ B y $t_w$ $P_z$ d $P_y$ FIGURE P8.64a D FIGURE P8.64b C
How does the reflectron (electrostatic mirror) improve resolution in a time-of-flight mass spectrometer? Ions of the same m/z with different kinetic energies penetrate a series of metal rings of increasing potential more positive than the accelerating potential. A defined band of ions is injected orthogonally into the drift region. This results in a small spread of kinetic energies for ions of the same m/z. A voltage pulse is applied to extract ions of the same m/z from the drift tube. Ions of the same m/z strike a cathode and eject electrons. A series of dynodes amplify the signal.
5. A fluid flowing between two plates has a velocity profile that is assumed to be parabolic, where $u = \frac{4u_{max}}{h^2}(hy - y^2)$. Determine the average velocity and volumetric discharge in terms of $u_{max}$. The plates have a width of w.
Which is the best example of an unsecured loan? A credit card Home Equity Line of Credit Car loan Home mortgage
5. The steel plate has a area density of 2300 kg/m². Determine the location of its center of mass. Also find the reactions at the pin and roller support. y y$^2$=2x 2 m A y=-x -2 m B 2 m X
8. In object-oriented programming, what is inheritance? a) The ability of an object to take on multiple forms b) The process of creating new objects from existing ones c) The ability of a class to derive properties and methods from another class d) The process of hiding data within an object
A drone is being directed across a frictionless ice-covered lake. The mass of the drone is 1.50 kg, and its velocity is 3 . 0 0 𝑖 ^ m / s 3.00 i ^ m/s. After 10.0 s, the velocity is 9 . 0 0 𝑖 ^ + 4 . 0 0 𝑗 ^ m / s 9.00 i ^ +4.00 j ^ m/s. If a constant force in the horizontal direction is causing this change in motion, find the magnitude of the force. Select the correct answer 1.08 N 1.67 N 0.562 N 1.88 N 2.00 N
For the given equation find the slope and the y-intercept.\Use these to graph the equation.\$y = \frac{7}{8}x - 5$
For the function f = -2tan(3x) + 4 + 1, find the following: a. The stretching factor: b. The period: c. The domain where k is anSelect an answer v d. The range: e. The vertical asymptotes: where k is anSelect an answer v
Which set of ordered pairs does not represents a function? {(-3,7), (-6,-6), (-2,-9), (-2,9)} {(7,-5), (-9,-5), (-4,-8), (-2,-4)} {(-8,-5), (0,-2), (-3,-2), (4,5)} {(8,8), (7,9), (-3,-8), (4,-8)} {(0,4), (4,0), (-3,3), (3,3)}
