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A motorcycle starts from rest at t = 0 and travels along a straight road with a constant acceleration of 4ft/s^2 until it reaches a speed of 50ft/s . Afterwards it maintains this speed. Also, when t = 0, a car located 8000ft down the road is traveling toward the motorcycle at a constant speed of 40ft/s .
a) Determine the time when they pass each other.
b)Determine the distance traveled by the motorcycle when they pass each other. please show work.
Determine the Modulus of Elasticity of Concrete by the ACI formula for a concrete cylinder that has a unit weight of 120pcf (1920kg/m^3) and a compressive strength of 3000 psi (21MPa).
How many watts of power would it take to heat 1 L of water(weighing 1.0 kg) by 10 degrees Celsius n 1.0 h? Assume no heat losses occur, so all of the energy expneded goes into heating the water.
write a paper on steel sustainability. - how to do design calculations for penthouse in steel building and- why the
a transmission tower is held my three guy wires attached to a pin at A and anchored by bolts b c and d if the tension in wire ab is 3.6 kn determine the vertical force p exerted by the tower on the pin at A
How many particles would be present in a cubic meter of aerosol at the concentration of the U.S. PM-10 standard or 50 micrograms/cubic meter if the particles are .1 micrometer in diameter.
Assuming we are still in a world with only discrete investment choice, i.e., option A, option B, etc., describe a realistic investment problem where none of the environments discussed apply without some reframing.
estimate the theoretical production of landfill gas (CH4 only) from the degradation of 20.3 kg of rapidly decomposable MSW. asssume the density of methane is 0.7177 kg/m^3.
a 520 ft long equal tangent crest vertical curve connects tangents that intersect at station 340 00 and elevation 1325 ft the initial grade is if 4 and the final grade is 2.5.
A 1.50 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 0.0500 moles of solid NaOH. Assume no volume change upon the addition of base. The Ka for HF is 3.5 x 10-4.
A 1.5 meter deep vertical wall trench is to be cut in a soil whose unit weight is 17.36 kN/cubic meters, angle of internal friction is 25 degrees, and cohesion is 20.6 kN/square meters. Determine the factor of safety of this trench by the Culmann Met..
At a section in a beam the tensile stress due to bending is 70 N/mm2 and there is a shear stress of 25 N/mm2. Determine from first principles, the magnitude and direction of the principal stresses
The beam is subjected to a force F=825 lb in the direction, and is supported by a pin connection at point B and a rope attached through a pin connection at point A. Problem #1: Draw a complete FBD of the beam.
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