Average Speed of Box-Cars This lab of the Box-cars recorded the average speed of a box-car going down a wooden plank that measured at 1.22 yards long was declined. The Box car started with a zero velocity and the boxcar was let go by one of the group members, then the object started to roll down the flat plank and it increased in speed and velocity, giving our group different speed times. II. Problem Hypothesis: If the boxcar was let go, its speed will gradually change, but also the way of rolling could raise the speed to a higher Velocity. Procedures: Gather up the following materials: 1 Blue cart, 1 wood plank, 1 stop watch and 1 meter stick.
BUS 305: Competitive Analysis and Bus. Cycles DR. William Muraco -PD Broken Window Summary The broken window fallacy from Henry Hazlitt’s book is a simplified example of economics, given in a way that the most knowledgeable person of economics or the least knowledgeable person can understand. The fallacy uses the example of a broken window and discusses how one situation can be both positive and negative depending on the person’s involvement with the situation. The baker in the story will most likely see his window being broken as a bad thing due to the fact that he will have to come up with the $50 to repair the broken window. This money to the baker could have been already accounted for in maybe other new renovations that would expand his business.
12 Dilemma Zone Physics Table of Contents 1.0 Abstract 3 2.0 Background 3 3.0 Aim 4 4.0 Hypothesis 4 5.0 Method 5 5.1 Reaction Time Testing Method 6 6.0 Results 7 6.1 Rule Drop Test 7 6.2 Yellow Light Duration Times 7 6. 3 Driver Reaction Times 8 6. 4 Driver braking distances / Deceleration Rates 8 6.5 Other Factors, Assumptions 8 7.0 Analysis 9 8.0 Conclusion 13 9.0 Bibliography 13 1.0 Abstract The ERT is about the dilemma zone, whether it exists or doesn’t exist at intersects. The dilemma zone is the imaginary line where there is a decision the driver has to make, be it either the driver slows down and doesn’t go through the yellow light or the driver choice to speed up and goes through the light. In the experiments will be carried out, in order to determine if there really is the existence of the dilemma zone and its approximate location away from the lights.
• Use it do show spread. • Use it for normally distributed data. • Cross it against oncoming traffic • Indicate the middle of some data. 4. The following are measures of spread: • standard deviation • root mean square errors • percentile ranges • polyunsaturated margarine 5.
The Buggy Lab Group 5: Jonathan, Emma, George Purpose: To determine the graphical relationship and mathematical relationship between the position of the buggy moving at a constant velocity (DV) and the time it travels (IV.) : The position of the buggy moving at a constant velocity (DV) & the time it travels (IV) Factors in Lab: (Factor- variable that affects the lab) * constant velocity (speed) * on & off switch * distance * time (stopwatches) Materials: 1) ruler (meter stick) 2) nuts 3) buggy 4) stopwatch Apparatus: Jobs: 1) Timer (person with stopwatch and telling the runner when to place nut behind car) 2) Runner (person placing nuts behind buggy) 3) Straightener ( person keeping car in a straight line) Procedure: 1) Assign tasks 2) Pick & Start starting point (origin) 3) Start car 4) Time started when back of car reaches origin 5) Timer says “mark” 6) Runner places mark where back of car was 7) Continue for 6 data points 8) Count tiles 9) Measure partial tile 10) Repeat steps 8 & 9 for all 6 data points Raw Data (slow car) Time(sec) | Position(m) | 4 | 0.57 | 8 | 1.36 | 12 | 2.20 | 16 | 2.95 | 20 | 3.77 | 24 | 4.52 | Fast Car Time(sec) | Position(m) | 4 | 2.19 | 8 | 3.66 | 12 | 5.74 | 16 | 6.93 | 20 | 9.26 |
Program Design – Following the directions in the assignment, clearly write up your problem design in this section and comment your pseudocode. Things the program must do: 1. Input the computer base price 2. Process the various option to compute the additional cost 3. Total of all the costs 4.
Below is the relationship of their speed and stopping distance. Speed (mi/h) | 5 | 10 | 15 | 20 | 25 | Stopping Distance (ft) | 7 | 17 | 30 | 46 | 65 | A linear regression shows the relation in a scatter plot of data. The regression is represented by a straight line entered to the graph to show how strong the correlation is. A quadratic regression is a parabola that shows the relation between data on a scatter plot, to show how strong the correlation is. To find out whether a linear regression or a quadratic regression organized the data more accurately I calculated each regression on my calculator and looked at which correlation coefficient was stronger.
These words were; smashed, collided, bumped, hit and contacted. The dependent variable was the speed estimates given by the participants Results Verb Mean estimate of speed (mph) Smashed 40.8 Collided 39.3 Bumped 38.1 Hit 34.0 Contacted 31.8 Conclusion The results in the table show that the phrasing of the question brought about a change in speed estimate. With smashed eliciting a higher speed estimate than contacted. So the harsher the verb used the faster the students thought the cars were travelling at. Evaluation The Experiment was conducted in a lab study, so enables researchers to have high control over variables (eg.
1.being too emotional 2.not having self-control 3.not paying attention Describe three characteristics of safe drivers. 1.Being careful 2.making good decision 3. paying attention Describe three driver errors that could cause a collision. 1. reckless driving 2.bad decision making 3.drunk driving How will this information affect you as a driver now and in the future? (2-3 sentences) · This information affects me as a driver in the future by helping me learn different things about driving to keep me safe. For example, paying attention to my surroundings and having
2 Basic principles of Kinetics are the “law of inertia” and the “law of energy.” Sir Isaac Newton “The law of inertia” also known as Newton’s 1st law helps explain what happens during blunt trauma. 1. “A body in motion will remain in motion unless acted upon by an outside force.” Example- 2 cars moving at 55 mph, 1 car stops at the red light, car 2 crashes into a wall. An outside force stops the motion of both cars with very different results. 2.