What is the gear ratio required to drive a compressor at 150 cycles per second using a turbine that turns at 18,000 rpms?

The boundary-layer thickness, δ, on a smooth flat plate in an incompressible flow without pressure gradients depends on the freestream speed, U, the fluid density, rho, the fluid viscosity, μ, and the distance from the leading edge of the plate, x.

How does google translate work and why did they create it ... random and stupid question

Ice dams are most directly related to: (A) the installation of soffit vents and ridge vents. (B) heated air in an uninsulated, unvented attic. (C) the addition of vent spacers in rafter bays. (D) a roof having gutters. (E) a house having gable vents.

The engine of a 2000kg car has a power rating of 75kW. How long would it take (seconds) to accelerate from rest to 100 km/hr at full power on level road. Neglect drag and friction.

Which of the following is a commonly used unit of refrigeration capacity? a) - Ton of refrigeration b) - kJ of refrigeration c) - kg of refrigeration d) - kN of refrigeration

Familiarity with basic fastener properties: For each of the standard fasteners specified informally below, determine the major diameter d, the pitch p, the pitch diameter dp, and the bolt length L.

The diameter of a cylinder is called the a.) stroke b.) bore c.) principal length d.) radius

Consider the following grooves, each of width W, that have been machined from a solid block of material. (a) For each case obtain an expression for the view factor of the groove with respect to the surroundings outside the groove.

What is the last step to the design process? A: Define the problem B: Present solution C: Evaluate a solution D: Develop a solution

The controller can be considered the brain of closed loop system