Chapter 7
C: Done
B: The balls pass at t=4.719999999999944
A: ballC reaches the end of the table at t=3.9999999999999587. At this time, ballA is at
pos=(0.500000000000021, 0, -1.5), and ballB is at pos=(0.499999999999991, 0, 0)
Chapter 8
C: done by changi
#Britta Smith's Collision Detection (A)- Ch 10
from _future_ import division
from visual import *
def collisionSpheres(sphere1, sphere2): #naming the collision function
dist=mag(sphere1.pos-sphere2.pos) #telling it how to find the number for the function
#Britta Smith's List, Loops, and Ifs (A)- Ch 8
from _future_ import division #tells it to properly do math
from visual import * #imports files
scene.range=10 #sets the camera range
scene.autoscale=False #keeps the camera from moving on its own
ball1=spher
Kinematics
Activities
Construct motion diagrams for the motions described below.
a. A subway train in Washington, D.C., starts from rest and accelerates at 2.0 m/s2 for 12 seconds.
b. A pole-vaulter, just before touching the cushion on which she lands aft
For each of the position vs. time graphs below, construct a corresponding motion diagram and velocity vs.
time graph.
a. Motion Graphs
Motion Diagram
b. Motion Graphs
Motion Diagram
For each of the graphs below, construct a corresponding graph and motion
Professor David Weaver
PHY 111
June 25, 2013
Nuclear Energy Debate
Support:
Nuclear energy is a rapidly growing industry that provides a cleaner alternative to
manufacturing electricity through fossil fuels. There are many arguments against it due to
misc
A car, initially at rest, accelerates toward the west at 2.0 m/s2. At the same time that the car starts, a truck, 350 m
west of the car and moving at 16 m/s toward the east, starts to move slower, accelerating at 1.0 m/s 2. The car and
truck pass safely.
An automobile, initially traveling at 15 m/s, begins to slow down as it approaches a red light. After
traveling 15 m, and slowing to 3.0 m/s, the light turns green and the driver steps on the gas and accelerates
for 2.4 seconds until she reaches her origi
Professor David Weaver
PHY 111
July 17, 2013
Cultural Science
For my cultural science project I watched three TEDTalks that were around 20 minutes
each. They dealt with different scientific aspects related to social studies and human behavior.
The first t
Start with:
From _future_ import division
from visual import *
Objects: sphere, box
Attributes: pos=(x,y,z) radius/length/height/width, or size=(xyz)
color=color.blue/red/etc
Make comments by starting it with a #
Note: after you name something (by doing l
Chapter 18:
Analysis: See program
Chapter 19
Analysis:
C.
1. Because acceleration is constant, Fnet = 0
2. The x-velocity of the ball is 3.147 because it equals the slope of x vs t.
3. -10.032. This is the slope of the Vx vs t graph. In other words, the m
Chapter 15:
Lab report:
C.
1. 0.253, -0.008
2. -0.226, 0.003
3. 0.347, -0.8
B.
1. by looking at the intercept or point where t=0.
2. It tells you the acceleration. The units would be m/s2
3. No, it could be speeding up or slowing down.
4. No, theres not e
C. The coordinates for the center of my chair are: X = +3, Y = 2.5, Z = +4
B. See image below (note: units are in feet, each line represents 1 foot)
A. Coordinates for center of table: X = +2.5, Y = 3, Z = +1
For Analysis of chapter 3, the code looks like
Chapter 11
1. The velocity of the ball should be (-3, +4, 0)
2. The frogs velocity will be (-1.5, +3, 0)
3. The spaceships velocity is (-3,+2,0)
Chapter 13
C.
vi,x= 314.176, vf,x= 256.014, CR= 0.81487
B.
1. vi,x= 1.674, vi,y=10.164
2. vf,x=0.645 , vf,y=6.
#Britta Smith Moon Lander Game Ch. 18 (A)
from _future_ import division
from visual import *
scene.range=20
ground=box(pos=vector(0,-10.05,0), size=(40.0,1,1), color=color.white) #setting up our scene
spaceship=box(pos=vector(0,8,0), size=(2,5,2), color=c