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Assignment 10 http://session.masteringphysics.com/myct/assignmentPrintView?displayM...
21 of 21 4/11/2014 1:13 PM
Physics 220 - HW #1 (Homework)
aalromia::app-6@purdue
Summer-2013-PHYS-22000-01-XLST, Summer 1 2013 Instructor: Shawn Slavin
Current Score : – / 20 Due : Wednesday, May 22 2013 11:59 PM EDT
1.–/2 points SerCP9 1.P.006.
Kinetic energy KE has dimensions kg · m2/s2. It can be written in terms of the momentum p and mass m as
(a) Determine the proper units for momentum using dimensional analysis.
(b) Force has the SI units kg · m/s2. Given the units of force, write a simple equation relating a constant force F exerted on an object, an interval of time t during which the force is applied, and the resulting momentum of the object, p. (Do this on paper. Your instructor may ask you to turn in this work.)
Show My Work (Optional)
2.–/2 points SerCP9 1.P.502.XP.
You can obtain a rough estimate of the size of a molecule by the following simple experiment. Let a droplet of oil spread out on a smooth surface of water. The resulting oil slick will be approximately one molecule thick. Given an oil droplet of mass 6.0 10-7 kg and density 1054 kg/m3 that spreads out into a circle of radius 41.8 cm on the water surface, what is the order of magnitude of the diameter of an oil molecule?
10−5
10−7
10−9 10−11
10−14
Show My Work (Optional)
3.–/2 points SerCP9 1.P.016.
A small turtle moves at a speed of 459 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
cm/s
Show My Work (Optional)
4.–/2 points SerCP9 1.P.035.MI.FB.
A point is located in a polar coordinate system by the coordinates r = 3.0 m and θ = 30°. Find the x- and y-coordinates of this point, assuming that the two coordinate systems have the same origin.
x = m
y = m
Show My Work (Optional) WebAssign
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
5.–/2 points SerCP9 1.P.045.
In the figure below, find each of the following.
(a) the side opposite θ
(b) the side adjacent to
(c) cos θ
(d) sin
(e) tan
Show My Work (Optional)
6.–/2 points SerCP9 2.P.028.WI.
In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220-m-long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an acceleration of 15g for a short time.)
m/s2
Compare your answer with the free-fall acceleration, 9.80 m/s2 (i.e. how many times stronger than gravity is this force?).
g
Show My Work (Optional)
7.–/2 points SerCP9 2.P.045.
A ball is thrown vertically upward with a speed of 18.0 m/s.
(a) How high does it rise?
m
(b) How long does it take to reach its highest point?
s
(c) How long does the ball take to hit the ground after it reaches its highest point?
s
(d) What is its velocity when it returns to the level from which it started?
m/s
Show My Work (Optional)
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
2 of 3 19-05-2013 13:42
8.–/2 points SerCP9 3.P.001.
Vector has a magnitude of 25 units and points in the positive y-direction. When vector is added to the resultant vector points in the negative y-direction with a magnitude of 14 units. Find the magnitude and direction of
magnitude unit(s)
direction
Show My Work (Optional)
9.–/2 points SerCP9 3.P.010.
A person walks 17.0° north of east for 2.70 km. How far due north and how far due east would she have to walk to arrive at the same location?
north km
east km
Show My Work (Optional)
10.–/2 points SerCP9 3.P.025.WI.
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height?
m/s
Show My Work (Optional)
A B A, A + B
? B
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
Physics 220 - HW #1 (Homework)
aalsadah::app-6@purdue
Summer-2013-PHYS-22000-01-XLST, Summer 1 2013 Instructor: Shawn Slavin
Current Score : – / 20 Due : Wednesday, May 22 2013 11:59 PM EDT
1.–/2 points SerCP9 1.P.006.
Kinetic energy KE has dimensions kg · m2/s2. It can be written in terms of the momentum p and mass m as
(a) Determine the proper units for momentum using dimensional analysis.
(b) Force has the SI units kg · m/s2. Given the units of force, write a simple equation relating a constant force F exerted on an object, an interval of time t during which the force is applied, and the resulting momentum of the object, p. (Do this on paper. Your instructor may ask you to turn in this work.)
Show My Work (Optional)
2.–/2 points SerCP9 1.P.502.XP.
You can obtain a rough estimate of the size of a molecule by the following simple experiment. Let a droplet of oil spread out on a smooth surface of water. The resulting oil slick will be approximately one molecule thick. Given an oil droplet of mass 1.0 10-6 kg and density 882 kg/m3 that spreads out into a circle of radius 41.8 cm on the water surface, what is the order of magnitude of the diameter of an oil molecule?
10−5
10−7
10−9 10−11
10−14
Show My Work (Optional)
3.–/2 points SerCP9 1.P.016.
A small turtle moves at a speed of 219 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
cm/s
Show My Work (Optional)
4.–/2 points SerCP9 1.P.035.MI.FB.
A point is located in a polar coordinate system by the coordinates r = 5.6 m and θ = 22°. Find the x- and y-coordinates of this point, assuming that the two coordinate systems have the same origin.
x = m
y = m
Show My Work (Optional) WebAssign
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
1 of 3 19-05-2013 20:37
5.–/2 points SerCP9 1.P.045.
In the figure below, find each of the following.
(a) the side opposite θ
(b) the side adjacent to
(c) cos θ
(d) sin
(e) tan
Show My Work (Optional)
6.–/2 points SerCP9 2.P.028.WI.
In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220-m-long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an acceleration of 15g for a short time.)
m/s2
Compare your answer with the free-fall acceleration, 9.80 m/s2 (i.e. how many times stronger than gravity is this force?).
g
Show My Work (Optional)
7.–/2 points SerCP9 2.P.045.
A ball is thrown vertically upward with a speed of 11.0 m/s.
(a) How high does it rise?
m
(b) How long does it take to reach its highest point?
s
(c) How long does the ball take to hit the ground after it reaches its highest point?
s
(d) What is its velocity when it returns to the level from which it started?
m/s
Show My Work (Optional)
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
8.–/2 points SerCP9 3.P.001.
Vector has a magnitude of 29 units and points in the positive y-direction. When vector is added to the resultant vector points in the negative y-direction with a magnitude of 12 units. Find the magnitude and direction of
magnitude unit(s)
direction
Show My Work (Optional)
9.–/2 points SerCP9 3.P.010.
A person walks 27.0° north of east for 2.20 km. How far due north and how far due east would she have to walk to arrive at the same location?
north km
east km
Show My Work (Optional)
10.–/2 points SerCP9 3.P.025.WI.
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height?
m/s
Show My Work (Optional)
A B A, A + B
? B
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
3 of 3 19-05-2013 20:37
Physics 220 - HW #1 (Homework)
akalajmi::app-6@purdue
Summer-2013-PHYS-22000-01-XLST, Summer 1 2013 Instructor: Shawn Slavin
Current Score : – / 20 Due : Wednesday, May 22 2013 11:59 PM EDT
1.–/2 points SerCP9 1.P.006.
Kinetic energy KE has dimensions kg · m2/s2. It can be written in terms of the momentum p and mass m as
(a) Determine the proper units for momentum using dimensional analysis.
(b) Force has the SI units kg · m/s2. Given the units of force, write a simple equation relating a constant force F exerted on an object, an interval of time t during which the force is applied, and the resulting momentum of the object, p. (Do this on paper. Your instructor may ask you to turn in this work.)
Show My Work (Optional)
2.–/2 points SerCP9 1.P.502.XP.
You can obtain a rough estimate of the size of a molecule by the following simple experiment. Let a droplet of oil spread out on a smooth surface of water. The resulting oil slick will be approximately one molecule thick. Given an oil droplet of mass 8.0 10-7 kg and density 1122 kg/m3 that spreads out into a circle of radius 41.8 cm on the water surface, what is the order of magnitude of the diameter of an oil molecule?
10−5
10−7
10−9 10−11
10−14
Show My Work (Optional)
3.–/2 points SerCP9 1.P.016.
A small turtle moves at a speed of 213 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
cm/s
Show My Work (Optional)
4.–/2 points SerCP9 1.P.035.MI.FB.
A point is located in a polar coordinate system by the coordinates r = 5.6 m and θ = 34°. Find the x- and y-coordinates of this point, assuming that the two coordinate systems have the same origin.
x = m
y = m
Show My Work (Optional) WebAssign
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
5.–/2 points SerCP9 1.P.045.
In the figure below, find each of the following.
(a) the side opposite θ
(b) the side adjacent to
(c) cos θ
(d) sin
(e) tan
Show My Work (Optional)
6.–/2 points SerCP9 2.P.028.WI.
In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220-m-long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an acceleration of 15g for a short time.)
m/s2
Compare your answer with the free-fall acceleration, 9.80 m/s2 (i.e. how many times stronger than gravity is this force?).
g
Show My Work (Optional)
7.–/2 points SerCP9 2.P.045.
A ball is thrown vertically upward with a speed of 11.0 m/s.
(a) How high does it rise?
m
(b) How long does it take to reach its highest point?
s
(c) How long does the ball take to hit the ground after it reaches its highest point?
s
(d) What is its velocity when it returns to the level from which it started?
m/s
Show My Work (Optional)
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
2 of 3 19-05-2013 13:21
8.–/2 points SerCP9 3.P.001.
Vector has a magnitude of 29 units and points in the positive y-direction. When vector is added to the resultant vector points in the negative y-direction with a magnitude of 15 units. Find the magnitude and direction of
magnitude unit(s)
direction
Show My Work (Optional)
9.–/2 points SerCP9 3.P.010.
A person walks 27.0° north of east for 2.90 km. How far due north and how far due east would she have to walk to arrive at the same location?
north km
east km
Show My Work (Optional)
10.–/2 points SerCP9 3.P.025.WI.
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height?
m/s
Show My Work (Optional)
A B A, A + B
? B
Physics 220 - HW #1 http://www.webassign.net/web/Student/Assignment-Responses/last?d...
Assignment 1
Due: 11:59pm on Wednesday, February 5, 2014
You will receive no credit for items you complete after the assignment is due. Grading Policy