Arock is suspended by a light string. when the rock is in air, the tension in the string is 43.8 n . when the rock is totally immersed in water, the tension is 31.3 n . when the rock is totally immersed in an unknown liquid, the tension is 18.3 n .

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?

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)