MECHANICAL ADVANTAGE & EFFICIENCY: In this problem Carlitos is pushing a 50 pound drum up a ramp (inclined plane). He is pushing with
22 pounds of force. The ramp is 12 feet long and the dock at the top of
the ramp is 3 feet high. When solving, always write out all calculations and
report your answers by uploading a picture of all your work (that you did
on a blank sheet of paper). Find the AMA, IMA, and efficiency.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]