A 0.432 kg object is at the bottom of an inclined, frictionless surface. its then given a push causing it to slide up the surface. its speed when it starts to slide is 5.57 m/s. calculate the height above the release point at which its speed is 4.16 m/s

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?

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)