Why must air tanks be drained

What is a "gob" as described in the glass making process?

At a water-treatment plant, water at 20°C flows from tank A to tank B at a rate of 600 L/s through a 50 cm diameter asphalt lined iron pipe that is 150 m long.

For each of the following cases choose a suitable system, if possible, and describe its boundaries and surroundings. Indicate if the work done (Wk) is positive, negative, or zero, and heat transfer (Q), if any, positive, negative or zero.

Consider two identical rooms: one with a 2-kW electric resistance heater and the other with two couples fast dancing.

The sticker inside the door of my car says that the tire pressure should be 32 psig (322 kPa) when the tire is cold.

Given an unsorted array of distinct positive integers A[1 ... n] in the range between 1 and 10000 and an integer i in the same range. Here n can be arbitrary large. You want to find out whether there are 2 elements of the array that add up to i.

A hydraulic power unit is sometimes referred to as a?

8.21 In the final stages of production, a pharmaceutical is sterilized by heating it from 25 to 75°C as it moves at 0.2 m/s through a straight thin-walled stainless steel tube of 12.7-mm diameter.

Which of the following can improve your car's gas mileage? A. Equipment racks B. Cargo carriers C. Sports team flags D. Car aerodynamics

Which of the following describes a logic bomb? a rogue piece of code in a system activates on a certain date a piece of code replaces the boot instructions the cookie tracker is exploited to note your browsing habits a piece of code hidden in a