okay I'm having a total brain freeze right now,guess it's because of all the finals I'm studying for. Anyways...I need help converting kcal to joules. Very easy I know...but I'm dumbfounded right now.
I have 14.4 kcal and I need to have joules...so do I divide or multiply by 4186 J? Thanks...
What current will flow through a would-be rescuer who grasps the first victim(resistance 4600 Ohm) by the wrist and has a resistance of 8000 Ohm to the ground? You may assume the resistance of the part of the original victim between the source of voltage(220 V) and the would-be rescuer is 500...
Electricity problem.Pleae help!
Suppose a person touches the case of an electric appliance while taking a bath. The total resistance through the person's hand and body is 3097 Ohm. What is the smallest voltage on the case of the appliance that could cause ventircular fibrillation? Any help...
In deep-sea dives the pressure of the air that a diver breathes may be quite large. The mixture of gases breathed is adjusted so that the partial pressure of oxygen is the same as on the surface of the earth. If a person is breathing air with a pressure of 9.1 atm, what % of the molecules in...
okay having trouble setting up the formula for this one! So if someone could just tell me what formula to use that would be awesome.
What minimum blood pressure in mmHg at the heart is required to produce an artial blood pressure of 59 mmHg in the brain if the brain is 34 cm above the heart...
Human Pressure! Help Please!
I'm having a difficult time getting this blood pressure problem to work out. Here is the question:
Neglecting the pressure drop due to resistance, calculate the blood pressure in mmHg in an artery in the brain 30 cm above the heart. The pressure at the heartis...
Assuming an energy equivalent for your food of 2.1 x 107 J/kg, calculate the amount of food needed to walk a distance of 30 km at a rate of 5 km/hr?
:eek:
suppose that 3.1 kg of shaved ice is needed to keep medication cold in a room without a refrigerator. What amount o heat must be removed from the 3.1 kg of water to make ice once it has reached 0 deg C
human energy problem!
okay...i have this assignment that's due tomorrow morning so I'm begging for some help. There is only one problem that I'm totally lost on.
[FONT=Comic Sans MS]A 50 kg hiker climbs a mountain 1000m high in 3 hrs. Assuming the average O2 consumption during his climb was...