2. (I1) Buoyant forces are supplied by all fluids (liquid or gas), it's the mechanism that send high altitude balloons all the way up to the stratosphere. For gases, density is given in units of grams/liter (g/L). It is much more convenient than kg/L because gases have such low densities. Here's a table of densities for this problem : Gas Density (g/L) Air 1.225 0.08988 Hydrogen Helium 0.1786 a) If we went outside and filled a balloon with hydrogen so that it occupied a volume of V = 1.00 m3, what would be the net force acting on a balloon (is the net force upward or downward)? b) Repeat part a) but assume we made a Helium balloon instead.

2. (I1) Buoyant forces are supplied by all fluids (liquid or gas), it's the mechanism that send high altitude balloons all the way up to the stratosphere. For gases, density is given in units of grams/liter (g/L). It is much more convenient than kg/L because gases have such low densities. Here's a table of densities for this problem : Gas Density (g/L) Air 1.225 0.08988 Hydrogen Helium 0.1786 a) If we went outside and filled a balloon with hydrogen so that it occupied a volume of V = 1.00 m3, what would be the net force acting on a balloon (is the net force upward or downward)? b) Repeat part a) but assume we made a Helium balloon instead.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.

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please answer question 2, a and b.

1. (II) A 3.8 kg aluminum ball is found to have an apparent mass of 1.9 kg when completely
submerged in a particular liquid. a) Calculate the density of the liquid. b) determine a
general formula for finding the density of a liquid using this procedure.
2. (I1) Buoyant forces are supplied by all fluids (liquid or gas), it's the mechanism that send
high altitude balloons all the way up to the stratosphere. For gases, density is given in
units of grams/liter (g/L). It is much more convenient than kg/L because gases have such
low densities. Here's a table of densities for this problem:
Gas
Density (g/L)
Air
1.225
0.08988
Hydrogen
Helium
0.1786
a) If we went outside and filled a balloon with hydrogen so that it occupied a volume of
V 1.00 m, what would be the net force acting on a balloon (is the net force
upward or downward)?
b) Repeat part a) but assume we made a Helium balloon instead.
3. (I) a) Determine the total force and the absolute pressure on the bottom of a swimming
pool 25.0 meters by 9.5 meters, whose uniform water depth is 2.0 meters. b) what will
be the pressure against the side of the pool near the bottom?
nt hath
il 1...hich dan
7111 AA/ ter and +hon ail wbich den'+mix)arn neu ed into llchanad tuhe

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