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A scaled ice towing tank (1’ wide x 5’ deep) full of ice is used to model ship movement through ice.  Unfortunately, the HVAC system failed, and the 25° F ice melted to 40° F water.  There is a side gate that can be raised or lowered as needed.  For this problem, assume there was no change in volume when the ice melted. Based on the sketch below (not to scale): Specific heat of ice = 0.46 BTU / lbm × °F Specific heat of water = 1.00 BTU / lbm × °F Heat of fusion of ice / water = 144 BTU / lbm      a. Assuming there are 40.9 slugs of H2O in the tank, compute the total energy (in BTU) required to change the H2O from 25° F ice to 40° F water. b. Find the total vertical component (only) of force, FV, on the gate.

A 1 ft-diameter PVC pipe (CHW = 150) is conveying 15.3 cfs. Determine the friction head loss over a 100 ft length.    Use hf = K Qm with K = (4.73 L) / (D4.87 CHW1.85) and m = 1.85.  (Express your final answer using 2 decimal places: x.xx).

Renin is released from the kidney when blood volume or blood oxygen is low, and its function is to:

Assuming a 28-day ovarian cycle, on what day should ovulation occur? 

In the elderly, decreased thyroid function causes ________.

Cushing’s disease is a disorder caused by ________.

In the hypothalamic-pituitary-adrenal (HPA) axis, which of the following sequences correctly describes hormone release from the hypothalamus to the adrenal cortex?

If an autoimmune disorder targets the beta cells of the pancreas, which hormone production would be directly affected?

Which hormone is essential for uterine contractions during childbirth and milk ejection during breastfeeding?

What process shuffles the alleles and causes homologous chromosomes to no longer be identical during meiosis?