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An object is constructed of a material lighter than water. It weighs 50 N in air and a force of 10 N is required to hold it under water. What is its density, specific weight, and specific gravity?
the density if water at sixty degrees fahrenheit and atmospheric pressure is sixty-two point four lbmft3. what is the
a ceramic has k0.8 wmk. if this ceramic is shaped into a cylinder with a porosity distribution given by p.1xl1-xl where
Four pounds of air is compressed in a cylinder-piston arrangement while the temperature remains constant at 70°F. If the initial pressure is 30 psi absolute, calculate the work needed to compress the air such that the absolute pressure doubles. Al..
consider air in a piston-cylinder assembly. initially the air is at p1 2bars and t1 600k . the air is compressed
describe possible methods that can be used to separate materials such as polymers, aluminium alloys and steels from one another.
a refrigerator consumes 280 w of electric power when it is running. the cost of electricity is 10 cents per kwh. what
Argon is compressed in a polytropic process with n=1.2 from 120 kPa (P1) and 10 °C (T1) to 800 kPa (P2) in a piston-cylinder device. List all the assumptions. Derive the equation of the boundary work (kJ/kg) in terms of P1, T1, & P1. It should includ..
A 3-D cubic unit cell contains four atoms whose centers are positioned halfway up along each of the vertical cell edges and one atom each centered in the middle of the top and bottom faces.
two structural members b and c are bolted to a bracket a. knowing that both members are in tension and that p 6 kips
the structure abcd is made of 2012-t6 aluminum and has orques applied at end a and at c.a calculate the shear stress at
water behind a dam enters an intake pipe at 24psia 5 fts flow through a turbine and exits 200ft below at 19psia 45 fts
an initially deflated flat balloon is connected by a valve to a 12 m3 storage tank containing helium gas 2 mpa and
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