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1.Consider the dangers of using a camp stove inside an enclosed space like a tent. Test data show that a high heat liquid fuel camp stove can dramatically increase CO mixing ratios. For one brand of stove, CO increased to 130 ppmv in 15 minutes. The tent volume was 0.59 m3 tent and the air exchange rate was 2 hr-1 with tent zipped up. The initial and outside air CO mixing ratio was 0.1 ppmv. Use P=0.8 atmospheres, and an air temperature of 5°C.
a) Calculate the CO emission rate from the stove.
b) After it reached 130 ppmv the stove was turned off. Calculate the CO mixing ratio 10 minutes later.
A scooterist is racing at a speed of 72 km per hour. If the radius of the wheel is 20 cm, find the angular speed of the wheels. Ans) 72kmph=20m/s 20cm=0.2m; v=rw w=v/r w=20/0
The airplane shown in the figure is to achieve "weightlessness" for a short period of time by flying along a curved path such that it's acceleration components in x direction a x
A mild steel ring has a radius of 50mm and a cross-sectional area of 400mm 2 . A current of 0.5 A flows in a coil wound uniformly around the ring and the flux formed is 0.1mWb
The radioisotope 222 84 Po undergoes alpha decay to form an isotope of lead (lead has atomic number 82). Verify what the mass number of that isotope must be by writing a nuc
Molecules of a medium after absorbing incoming light radiations, sends them in all direction. This process is called as Scattering.
Illustrate V - I graph for ohmic and non-ohmic materials. Give one example for each.
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find angular velocity, acceleration and angle given constant speed,and length
what is conversion of momentum?
What is the size of an atom?What is the size of an atom?What is the size of an atom?What is the size of an atom?What is the size of an atom?What is the size of an atom?
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