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As part of an advertising sign on the top of a tall building, a 2-m-diameter sphere called a "weather ball" glows different colors if the temperature is predicted to drop, rise, or remain about the same. Calculate the force on the weather ball due to winds of 15, 30, 60, 120, and 160 km/h if the air is at 0°C.
the acceleration of a particle is defined by a kt2. knowing that v -4 ms at t0 and v20 ms at t 4 determine the
A piston/cylinder arrangement has a load on the piston so it maintains constant pressure. It intially contains 1kg of steam at 500kPa and 50% quality. Heat from a reservoir at 700 C brings the temperature of the steam to 600 C.
Consider an aluminum--titanium laminated composite. Calculate the longitudinal and transverse Young's modulus of this composite if the volume fractions of the two metals are equal. Given E(Ti) = 116 GPa, E(Al) = 70 GPa.
The aim of this project is to understand the challenges in recycling products that were created by 3d printing. Thisincludes: learning from existing technology of recycling 3d printed products (Filabot), finding and comparing differences between o..
the following times to failure in hours were observed in an experiment where 14 units were tested until eight of them
an inventor claims to have invented a heat engine that operates using energy reservirs whose temperatures are 600k and
2.20 times 105 gallons of turpentine sg 0.863 is stored in a 25.0-ft tall storage tank. what is the total mass of the
a 0.5-in.-diameter steel e 30000 ksi bolt 1 is placed in a copper tube 2 as shown in fig. p5.47. the copper e 16000
If V is a velocity, l a length and v a fluid property having dimensions of L2T-1, which of the following combinations are dimensionless:
a 20deg steel spur pinion with 25 teeth and module 1.5 mm transmits 150 w to a 49 tooth cast iron gear. pinion speed is
a heat pump is absorbing heat from the cold outdoors at 5oc and supplying heat to a house at 25oc at a rate of 18000
a fixed quantity of air at t1 57oc and p1 222 kpa is heated at constant temperature in a piston-cylinder assembly
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