Sam's Earth Science class is about to walk the planets. What does that mean? Well, his teacher has tied a large helium balloon outside and students will pace off the distance to each planet, using this scale as a guide. Sam's teacher has told the class to use the idea of a "pace" as a unit of measure for the activity. A pace is two steps-one with each foot. One pace is about 1 meter. The students predicted how many paces it would take to reach each planet. It takes 6 paces to reach Mercury. How many paces from the Sun is Venus?

A) 8 paces
B) 11 paces
C) 15 paces
D) 18 paces

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.

Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg