A 9 kg block is held at rest on an inclined plane by friction. If the ramp makes an angle of 45 degrees with the horizontal, calculate the minimum required coefficient of friction between the ramp and the block.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?