Where did fossil fuels come from

A European car manufacturer reports that the fuel efficiency of the new MicroCar is 48.5 km/L highway and 42.0 km/L city. What are the equivalent fuel efficiency rates in miles per gallon?

Compute the electrical resistivity of a cylindrical silicon specimen 7.0 mm (0.28 in.) diameter and 57 mm (2.25 in.) in length in which a current of 0.25 A passes in an axial direction.

Liquid toluene is flowing through a pipe at a rate of 175 m 3 / h 175m3/h. What is the mass flow rate of this stream in kg/min? What is the molar flow rate in mol/s?

Sketch T-s and p-v diagrams for the Diesel cycle.

For the Mohr's circle of a plane-strain element, which of the following changes as a result of shear strain change? a) neither the center nor radius b) only the radius of the circle c) both the center and radius d) only the center of the circle

16 Suppose that a steel of eutectoid composition is cooled to 550°C (1020°F) from 760°C (1400°F) in less than 0.5 s and held at this temperature.

The rotor in a shaded pole motor consists of A coils energized by alternating current B a short circuited loop of copper wire c a permanent magnet D an iron cylinder

What factors are likely to promote the formation of stress corrosion cracks?

Find the mass if the force is 18 N and the acceleration is 2 m/s2

Which process must first take place in order for the proteins in foods to be used by body cells? (1) digestion (3) synthesis (2) storage (4) excretion