How long have simple machines been around?

Group of answer choices

A: thousands of years

B: 850 years

c: millions of years

d: hundreds of years

A high-voltage direct-current (dc) transmission line between Celilo, Oregon and Sylmar, California is 845 mi in length. The line contains four conductors, each weighing 2460 lbper 1000 ft. How many kilograms of conductor are in the line?

Anyone have any good ways of revisiting Or Have any good study notes

Neon gas enters an insulated mixing chamber at 300 K, 1 bar with a mass flow rate of 1 kg/s. A second steam of carbon monoxide enters at 575 K, 1 bar at a mass flow rate of 0.5 kg/s.

In a turning operation, spindle speed is set to provide a cutting speed of 1.8 m/s. The feed and depth of cut are 0.30 mm and 2.6 mm, respectively. The tool rake angle is 8°. After the cut, the deformed chip thickness is measured to be 0.49 mm.

By increasing the cross-sectional area of the restriction, one can significantly increase the flow velocity. a) True b) False

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

Supercharging is the process of (a) Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere (b) providing forced cooling air (e) injecting excess fuel for raising more load (d) supplying

Laws that protect businesses involve

What are the three basic components of a limit switch

If a law enforcement officer stops a vehicle for a traffic violation and finds a front-seat passenger 18 years of age or older not wearing a safety belt, a safety belt violation will be charged to: The front-seat passenger Neither the driver nor the