As Russ runs, his knee joint passes through the following vertical positions (meters): A. Frame 1: 0.067
B. Frame 2: 0.133
C. Frame 3: 0.212
D. Frame 4: 0.369
E. Frame 5: 0.439 The data were collected at a frequency of 100Hz (i. e. 100 frames per second - think about how this can be used to determine the time). What was the vertical acceleration of his knee joint at the third time point

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th

Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.