How Many nodes and antinodes are in the standing wave shown in the figure below? If this rope is 2.0 M in length, which wavelength would not produce standing waves on this rope?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

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)

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?