If you tried to put on a spacesuit without first wearing an oxygen mask for a while, you would   a overheat quickly due to insufficient air circulation in the suit   b be in danger of carbon dioxide poisoning during your spacewalk   c experience considerable pain as the nitrogen in your blood forms bubbles   d quickly asphyxiate due to insufficient oxygen in your bloodstream

Tire gauges for air pressure as well as most other gauges used in an industrial environment take into account the pressure due to atmosphere on earth that's why your car gauge reads zero before you put it in on your tire to check your pressure this is called gauge pressure. The real pressure with any tire or after or other objects containing pressurized stuff would be a combination of what the gauge reads as well as the atmospheric pressure. If a gauge on a tire reads 26.23 psi what is the real pressure in the tire pascals? The atmospheric pressure is 1.01×10 to the fifth power PA

> Question 4 of 8 > © Macmillan Learning A 0.573 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 5.37 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 2.31, what is the initial acceleration a of the metal cylinder? Assume the pressure outside of the tube is 1.00 atm and that the top of the tube is open to the air. a = 27.29 Incorrect m/s² 100 > Attempt 3

Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased in order to increase blood flow by a factor of 3, assuming no change in pressure difference? rf ri Additional Materials