5. The barometer of a mountain hiker reads 750 mbars at the beginning of a hiking trip and 650 mbars at the end. Neglecting the effect of altitude on local gravitational acceleration, determine the vertical distance climbed. Assume an average air density of 1.20 kg/m?.

4-24 A steady, incompressible, two-dimensional (in the xy-plane) velocity field is given by V = (0.523 – 1.88x + 3.94y)i + (-2.44 + 1.26x + 1.88y)j Calculate the acceleration at the point (x, y) = (-1,55, 2.07).

B) A mercury thermometer having a time constant of (90 sec) is initially at (300°C). It is immersed in a bath maintained at (130°C) at t = 0. Determine the temperature reading at (t=3 min) and (t = 5 min).

A pressurized tank of water has a 10-cm diameter orifice at the side bottom corner of the tank, where the water is being discharge to the atmosphere. The water level is 3 meters above the orifice. The tank air pressure above the water level is 300 kPa. Neglecting frictional effects, the initial discharge rate of water in kilograms per second (kg/s) from the tank is

Consider the steady, isothermal, irrotational flow of an incompressible frictionless fluid subject only to a body force characterized by a potential O, where F,=- V@ (in units of force/volume). Since the fluid is frictionless, the only surface force is due to pressure, F =-pn. By completing a momentum balance on a material volume of fluid subject to the constraints listed above, derive Bernouilli's law, P + ½pv² + O = constant along a fluid streamline.

On a day when wind is blowing over a lake (T(water) =20°C) at 5 m/s, which side of the air-water interface will be rate-limiting on the flux of Ethyl benzene (i.e. va or vw)?

If solar radiation intensity is 700 W/m² in NJ, how much solar energy arrives at a solar collector with an area of 2 m² in 12 hours? If the solar collector can convert 33% of solar energy collected to electricity, how much electricity (kWh) will be generated?