Which type of fires should you fight with a portable fire extinguisher?

Students are expected to respond to one of the two questions described below. Students should provide examples to clarify their response. 1.

Source water pollution in Madagascar

Material with hardness of 220 Vickers is harder than material with a hardness of 180 Vickers. a) - True b) - False

Indicate whether the following statements are true or false for a reversible process: (A) Q=0. (B) Work may be calculated using the equation of state. (C) The entropy change of the system is zero.

The catchment area consists of 10 acres of impervious area, 30 acres of apartments and 35 acres of single family housing. The maximum flow path to the outlet is 1000 feet long with the upper catchment slope having an average slope of 1.

A large retail organization previously divided work among its four employee-benefits staff into distinct specializations.

Tech a says the higher the numarical gear ratio (4:1), the more torque that will be applied to the wheels. Tech b says that the lower the numarical gear ratio (2:1), the more torque that will be applied to the wheels. Who is correct?

What is biomass? A) Organic matter that can be used as a fuel source B) Natural resource that takes more than a lifetime to replenish C) Alternative energy forms like solar energy and wind power that can be recycled D) Renewable energy captured

For the following pairs of sinusoidal time functions, determine which one leads/lags and by how much. (a) ?1 (?) = 4sin (6π*104?+60°) V and?2 (?) = 2cos (6π*104?-20°) V. (b) ? (?) = 10cos (400?-75°) V and? (?) = 4sin (400?+30°) A.

What are pneumatic tools powered by?