Project #97495 - physics

1)A diver accustomed to standard snorkel tubing of length 25 cm tries a self-made tube of length 3 m. During the attempt, what is the pressure difference between the external pressure on the diver's chest and the air pressure in the diver's lungs? (Assume the diver is in a fresh water lake with density ρ = 1.0 g/cm3.)
 kPa

What happens to the diver as a result of the attempt?

 
    
 
2)Consider the following. Note: Draw the free body diagram in each case.
(a) Figure (b) shows a wooden sphere with a diameter of d = 13 cm  (density ρ = 0.7 g/cm3)
held under water by a string. What is the tension in the string? (Assume the density of the water is 1000 kg/m3. Enter the magnitude only.) N

(b) Figure (a) shows a sphere of radius 
r = 16 cm
 and density of 
ρ = 3.5 g/cm3
 suspended in water. What is the tension in the string? (Assume the density of the water is 1000 kg/m3. Enter the magnitude only.)
 N
 
 
 
3) A particular object weighs 403 N in air and 154 N when immersed in alcohol of density 0.7 g/cm3. What are the volume and the density of the object?
(a) the volume
 L

(b) the density
 kg/m3
 
 
4) Water is transported upward in a plant through xylem tissue, which consists of cells of 1 mm length and a diameter of 185 µm. The xylem cells are attached to each other to form a channel. To what maximum height can water rise in these xylem channels due to capillarity? For those interested: Confirm this result with a simple experiment: Cut and split the stem of a flower with white petals (e.g., a dahlia or a carnation) and place one half the stem in a glass with dilute red ink and the other half in a glass with dilute blue ink. After several hours the flower will be half red and half blue.
             m

Subject Science
Due By (Pacific Time) 12/05/2015 02:00 pm
Report DMCA
TutorRating
pallavi

Chat Now!

out of 1971 reviews
More..
amosmm

Chat Now!

out of 766 reviews
More..
PhyzKyd

Chat Now!

out of 1164 reviews
More..
rajdeep77

Chat Now!

out of 721 reviews
More..
sctys

Chat Now!

out of 1600 reviews
More..
sharadgreen

Chat Now!

out of 770 reviews
More..
topnotcher

Chat Now!

out of 766 reviews
More..
XXXIAO

Chat Now!

out of 680 reviews
More..
All Rights Reserved. Copyright by AceMyHW.com - Copyright Policy