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Question: A floor carrying a load of 140 psf is supported by A441 structural steel 512 x 35 beams spaced 6 ft from center to center. The span of the beams is 21 ft. Use the AISC code.
a. Does the deflection exceed the allowable?
b. What are the maximum bending and shearing stresses?
How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 if the magnification is 8X
What would this frequency be in Hz? What would the mass of the car, M2, have to be so that the second harmonic vibration of the cable was the same frequency as the fundamental from part (b)?
The current in the wire is directed to the right and varies with time according to i(t) = 5t^3 + 3, in units of Amps. Find the magnitude and direction (CW or CCW) that is induced in the square at a time of t=1
One gram of nickel has 1.026 x 10^22 atoms, and each nickel atom has 28 electrons. How many electrons are contained in 6.00 g of nickel? The elemental charge is 1.6x 10^-19 C. Answer in units of electrons. What is the total charge of these electro..
Find the equivalent resistance between points a and b in the figure. Calculate the current in each resistor if a potential difference of 26.0 V is applied between points a and b.
A toy train rolls around a horizontal 1.5-m-diameter track. The coefficient of rolling friction is 0.13. What is the magnitude of the trains angular acceleration
A hockey puck is struck with a force of 40N in an ice hockey arena. Assuming the ice provides a constant frictional force of 20N, determine the mass of the puck
A model rocket blasts off from the ground, rising straight upward with fix acceleration that has a magnitude of 86.7m/s2 for 1.79 sec, Find what maximum altitude will the rocket reach
Under what condition is the cross product of two vectors of afixed magnitude maximum? what is the value of the vertical component of the velocity fora projectile at the top of its trajectory? what is the vector of acceleration foran object moving at ..
A laser beam is incident at an angle of 38.0 degree to the vertical onto a solution of corn syrup in water. find what the index of refraction of the syrup solution
A 0.0425 kg bullet traveling horizontally with a velocity of magnitude 415 m/s is fired into a wooden block with mass 1.12 kg, initially at rest on a level surface with a coefficient of friction μ=.27.
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 84.0 cm from her eyes, How far away is the poster actually located
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