Ray diagrams may be drawn to determine the characteristics of an image produced from a lens or mirror. When the lens produces light rays that are parallel, the image is Question 16 options:

between F & 2F on the other side as object

F on the other side as object

non-existent

at infinity

What happens when a rubber rod is rubbed with a piece of fur?

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)

Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?