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الموضوع:

1. Acyclist moves 12 km due to north and then

5km due east in 3hr.

Find / as his average speed

b) average vel velocity, in m/s

A solid circular steel shaft having an outside diameter of 2.00 in. is subjected to a pure torque of T = 8380 lb-in. The shear modulus of the steel is G = 12,000 ksi. Determine the magnitude of the angle of twist in a 5.00-ft length of shaft.

In alternating current, how often does the current alternate between negative and positive? 120 times per second 60 times per second 90 times per second 180 times per second

A floor system has W24 x 55 sections spaced 8'-0"" o. c. supporting a floor dead load of 50 psf and a live load of 80 psf. Determine the governing load. Show all work.

An inventor claims to have developed an engine that does not use fuel but operates as a power cycle at steady state while receiving energy by heat transfer from the surrounding atmosphere and discharging energy by heat transfer to the surrounding

A steel alloy is known to contain 93.8 wt% Fe, 6.0 wt% Ni, and 0.2 wt% C. Assume that there are no alterations in the positions of other phase boundaries with the addition of Ni. (a) What is the approximate eutectoid temperature of this alloy

Assign courseStudent's name with Smith, age with 20, and ID with 9999. Use the printAll () member method and a separate println () statement to output courseStudents's data. Sample output from the given program: Name: Smith, Age: 20, ID: 9999

Which renewable sources are growing at the fastest rate? Which renewable source is used to produce most electricity?

Air is compressed in the compressor of a turbojet engine. Air enters the compressor at 270 K and 58 kPa and exits the compressor at 465 K and 350 kPa. Take the average specific heat at constant pressure (cp, avg) of air as 1.015 kJ / kg.

A digital-to-analog converter uses a reference voltage of 120 V dc and has eight binary digit precision. In one of the sampling instants, the data contained in the binary register = 01010101.

What is a perpetual motion machine of the second kind?