1. what is the mass (in kg) of the child and basket if a scale reading of 102 n is observed? kg (c)

2. what is the tension t1 (in n) in the cord attaching the child to the scale? (enter the magnitude only.) n (d)

3. what is the tension t2 (in n) in the cord attaching the scale to the ceiling, if the scale has a mass of 0.800 kg? (enter the magnitude only.) n

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?