Jim Guinns PHYS2211 Assignment #20 Solutions
These problems are not to be turned in.
They are for you to study for the exam.
1.
An enclosed sample of ideal gas undergoes an isothermal (constant temperature) process.
Its initial volume is 3.00m3 and its fi
Jim Guinns PHYS1111 Assignment #19
Due Wednesday, Apr. 28, 2010
1. How much heat would have to be added to 425g of H2O to increase its temperature to 95.0oC
from -10.0oC?
2. A calorimeter contains 750.g of water at 13.0oC . A 350.g piece of aluminum at 98
Jim Guinns PHYS2211 Assignment #18
Due Wed., Apr. 21, 2010
1.
A garden hose has an intake opening of approximately 4.00cm2 . The other end of the
hose is attached to a sprinkler with a total output area of about 0.500cm 2 . As the water leaves
the sprinkl
Jim Guinns PHYS2211 Assignment #18
Due Wed., Apr. 21, 2010
1.
A garden hose has an intake opening of approximately 4.00cm2 . The other end of the
hose is attached to a sprinkler with a total output area of about 0.500cm 2 . As the water leaves
the sprinkl
Jim Guinns PHYS2211 Assignment #17 Solutions
Due Mon., Apr. 19, 2010
Please note that there is a table of densities on the inside cover of your textbook.
1.
Unusually, you happen to have a swimming pool filled with ethyl alcohol in your back
yard. What wo
Jim Guinns PHYS2211 Assignment #17
Due Mon., Apr. 19, 2010
Please note that there is a table of densities on the inside cover of your textbook.
1.
Unusually, you happen to have a swimming pool filled with ethyl alcohol in your back
yard. What would be the
Jim Guinns PHYS1111 Assignment #16 Solutions
These problems are not to be handed in.
They are for you to study for the exam.
1. A horizontal spring exerts a restoring force of 15.0N when it is displaced 5.00cm . What is
its spring constant?
From the defin
Jim Guinns PHYS1111 Assignment #15 Solutions
Due Monday, Apr. 5, 2010
Consider a ladder of length 2.50m and mass 17.0kg , leaning against a vertical wall making an
angle of with the floor. A firefighter with mass 80.0kg stands on the ladder a distance 2.2
Jim Guinns PHYS1111 Assignment #15
Due Monday, Apr. 5, 2010
Consider a ladder of length 2.50m and mass 17.0kg , leaning against a vertical wall making an
angle of with the floor. A firefighter with mass 80.0kg stands on the ladder a distance 2.25m
from th
Jim Guinns PHYS2211 Assignment #14 Solutions
Due Wednesday, Mar. 31, 2010
1. A 2.00m plank with a mass of 20.0kg is supported at both ends. A person with a mass of
50.0kg stands at 1.70m from the left end. What are the forces which the supports exert on t
Jim Guinns PHYS2211 Assignment #14
Due Wednesday, Mar. 31, 2010
1. A 2.00m plank with a mass of 20.0kg is supported at both ends. A person with a mass of
50.0kg stands at 1.70m from the left end. What are the forces which the supports exert on the
plank?
Jim Guinns PHYS2211 Assignment #13 Solutions
Due, Wednesday, Mar. 24, 2010
1.
Two spheres, each with a mass of 1kg and radius of 3cm are attached to the end of a 1m
long thin rod so that the end of the rod is attached to the surface of the spheres. The ro
Jim Guinns PHYS2211 Assignment #13 Solutions
Due, Wednesday, Mar. 24, 2010
1.
Two spheres, each with a mass of 1kg and radius of 3cm are attached to the end of a 1m
long thin rod so that the end of the rod is attached to the surface of the spheres. The ro
Jim Guinns PHYS2211 Assignment #13
Due, Wednesday, Mar. 24, 2010
1.
Two spheres, each with a mass of 1kg and radius of 3cm are attached to the end of a 1m
long thin rod so that the end of the rod is attached to the surface of the spheres. The rod has a
ma
17.0o
mg
n
fk
Jim Guinns PHYS2211 Assignment #12 Solutions
Due Monday, Mar. 22, 2010
1. A 15.0kg box slides 2.00m down a ramp that is inclined 17.0o to the horizontal as in the
diagram. There is a coefficient of kinetic friction of 0.120 between the block
Jim Guinns PHYS2211 Assignment #12
15.0o
These problems are NOT to be turned in. They are for your practice to study for the exam.
1. A 15.0kg box slides 2.00m down a ramp that is inclined 17.0o to the horizontal as in the
diagram. There is a coefficient
Jim Guinns PHYS2211 Assignment #11 Solutions
These problems are not to be turned in.
They are for you to study for the exam.
1.
A car has a mass of 1500kg. A truck has a mass of 19000kg and is moving at 30m/s .
a.) At what speed would the car have the sam
m2 = 125g
7.50x104kg
v1iI= 30.0cm/s
nitially
Initially 4
Finally
v1f6.50x10 kg
= 17.5cm/s
35.0m/s
m1 = 175g
0.150m/s
25.0m/s
m2 = 125g
0.0223m/s
o
v=
2i =
Finally ?55.0
1. What is the=1magnitude and direction of the impulse that would have to be applied t
Jim Guinns PHYS1111 Assignment #9
Due Wednesday, Feb. 24, 2010
1. A 1.00kg mass is attached to a wall with a string as shown in the diagram. It is resting on a
2.00kg mass. The 2.00kg mass is pulled to the right with a force of 20.0N . There is a
coeffici
Jim Guinns PHYS1111 Assignment #9
Due Wednesday, Feb. 24, 2010
1. A 1.00kg mass is attached to a wall with a string as shown in the diagram. It is resting on a
2.00kg mass. The 2.00kg mass is pulled to the right with a force of 20.0N . There is a
coeffici
Jim Guinns PHYS2211 Assignment #8
Due Wednesday, Feb. 17, 2010
y
F
n
x
15o
f
5kg
W
s = 0.400
k = 0.250
For problems 1-3, consider the diagram above. A 5kg block is pushed with a force F at
an angle of 15o down from the horizontal as shown. There are coe
Jim Guinns PHYS2211 Assignment #8
Due Wednesday, Feb. 17, 2010
F
15o
5kg
s = 0.400
k = 0.250
For problems 1-3, consider the diagram above. A 5kg block is pushed with a force F at
an angle of 15o down from the horizontal as shown. There are coefficients
Jim Guinns PHYS2211 Assignment #7 Solutions
Due Mon., Feb. 15, 2010
1. a.) What is the gravitational force of attraction between the Sun and Moon? (For the SunMoon distance, use the Sun-Earth distance, this and the needed masses are in the inside back
cov
Jim Guinns PHYS2211 Assignment #7
Due Mon., Feb. 15, 2010
1. a.) What is the gravitational force of attraction between the Sun and Moon? (For the SunMoon distance, use the Sun-Earth distance, this and the needed masses are in the inside back
cover of the
Jim Guinns PHYS1111 Assignment #6 Solutions
Due Wed., Feb. 10, 2010
n
y
x
f
W
For all of these problems you might like to know that the weight of an object is equal to its mass
times the acceleration due to gravity, i.e. W = m g .
1. Consider a mass, m =
Jim Guinns PHYS1111 Assignment #6
Due Wed., Feb. 10, 2010
For all of these problems you might like to know that the weight of an object is equal to its mass
times the acceleration due to gravity, i.e. W = m g .
1. Consider a mass, m = 10.0kg, at rest on a
Jim Guinns PHYS2211 Assignment #5 Solutions
These problems are not to be turned in.
They are for your practice for the exam.
(Youre welcome!)
1. While golfing, Haile hits a ball from the ground, at an angle of 12.0o above the horizontal and
an initial spe
Jim Guinns PHYS2211 Assignment #5
These problems are not to be turned in.
They are for your practice for the exam.
(Youre welcome!)
1. While golfing, Haile hits a ball from the ground, at an angle of 12.0o above the horizontal and
an initial speed of 55.0
Jim Guinns PHYS2211 Assignment #4 Solutions
Due Monday, Feb. 1, 2010
1. A vector A has a magnitude of 20.0m at points at an angle of 15.0o to the left of the y axis.
What are its components?
A
We see from the diagram that Ax will be negative and
x
A
15.0o
Jim Guinns PHYS1111 Assignment #4
Due Monday, Feb. 1, 2010
1. A vector A has a magnitude of 20.0m at points at an angle of 15.0o to the left of the y axis.
What are its components?
2. A vector B has components Bx = 15.0m, By = -5.00m . What are its magnit