Jake Seiter March 5th, 2014 The Making of a Hardrock Miner The Making of a Hardrock Miner written by Stephen M. Voynick, describes his own personal experiences as a hardrock miner in four different underground mines in the western United States, the Climax molybdenum mine in Colorado, Hecla Lakeshore Project a copper mine in Arizona, and two uranium mines in Wyoming. Rather than a book telling of the fortunes gained and lost, this book was about the relationships gained, but then also lost through
the mass of a moving object – a trolley, affects its stopping distance. [IMAGE] [IMAGE] Stopping Distance m In order for a moving vehicle to stop a Braking Force is needed. The friction between the wheel and the ground usually does this. But in this experiment the trolley has no brakes therefore a weight is attached to the trolley to stop it when the string attached to the weight tightens and provides an opposing force to the movement of the trolley. Force is the factor that pushes
suburbia. In the article "Joyride", Kunstler identifies the reasons for, and attraction of, a grand public relocation to previously uninhabited areas outside main city centres. Kunstler argues that it was, in part, the replacement of the streetcar (or trolley), and later the automobile, from the horse-powered transit of earlier 20th century life, that ignited weekend traffic to expand outside urban centres. "Joyriding" on weekends, as Kunstler explains, made suburban areas more accessible and attractive
indicate that the PFC is also responsible for regulating emotions and decision-making. A study was conducted in which participants were presented with three dilemmas. One dilemma was called the Trolley Dilemma: a trolley is headed toward five people standing on the track. You can switch the trolley to another track killing only one person instead of five. Subjects were asked to decide between right and wrong. Brain scans of the participants show that contemplating the dilemmas activates
Aim:- To investigate how the velocity of a trolley when different spring compressions are used. For this piece of coursework I am going to investigate how the velocity of the trolley over a set distance, is proportional to the compression of the spring. I plan to use two different methods of carrying out the investigation. These methods are :- A Light Gate : - The trolley had a piece of card attached to it, on the top.the spring of the trolley was then compressed and then released, as
Physics Institute of the University of Rome. He was shown the writings of Max Delbruck, who had boldly stated a gene, was a molecule. Salvador later said that Max’s writings were the “Holy Grail of biophysics.” While living in an old broken down trolley car in the streets of Rome Salvador started a conversation with a microbiologist by the name of Geo Rita. Geo introduced him to bacteriophage, Salvador believed he could prove Max’s theory. He fled Europe in 1940 when the Nazi war machine was an approaching
and will be investigated through a trolley going down a ramp. A simple trolley will be used to represent the vehicle and weights attached to the rear of the trolley via a pulley system will act as the brakes. Throughout the experiment energy will be transferred into many forms but no energy will be lost or gained. As the trolley is raised it gains potential energy, when released down the ramp this energy is converted to kinetic energy. When the trolley hits the horizontal surface all the energy
effects the acceleration of a small trolley with a weight of 1kg. Variables: The variables I will keep the same are: - the weight of the trolley - the angle of the surface/slope - length of the surface/slope - the surface of the surface/slope I am going to change the mass acting on the trolley through the pulley. This mass will be measured in grams. I will put on masses from 100g to 800g. I am going to measure the acceleration of the trolley in m/s as the mass on the pulley changes
Conditions • For this particular experiment the gain of the output for the strain gauges are set to 1 as 0 to 8 degrees slip angle is been measured. If smaller angles are measured a larger gain may be required. • The total displacement of the trolley that runs along the track is approximately 2.17 meters. However, this may slightly vary in the results, especially with higher slip angles due to the reaction force acting on the reversible hydraulic motor that drives the track. For consistency the
ramp) is 10cm using the metre stick 3. Ensure there are no extra weights attached to the trolley 4. Hold the trolley with its front touching the start line 5. Simultaneously start the stop clock and release the trolley (be careful not to push it or exert any extra force on it) 6. Stop the clock when the front of the trolley reaches the finish line 7. Record the time taken for the trolley to reach the finish, next to the relevant height, in a table 8. Repeat from step 4 twice
Acceleration of a Trolley Plan An unbalanced force causes an object to accelerate. The acceleration happens in the same direction as the resultant (or unbalanced) force. The size of this depends on the mass of the object and the size of the force. The force on a small object is bigger than the same force acting on a bigger object. If the mass stays the same but the force gets bigger, the acceleration also increases. The equation to find acceleration is: [IMAGE][IMAGE] when [IMAGE]=
Investigation of the Speed of a Trolley Down a Ramp and Its Gradient In this investigation I will be testing how the speed of the trolley is affected by the gradient of the ramp. The speed of the trolley will be affected by the gradient of the ramp by many factors. One of these factors is gravitational potential energy. GPE is the energy stored in an object because of its height. The energy is stored as a result of the gravitational pull of the earth for the object. GPE is also affected
the Speed of a Trolley For this piece of coursework, I intend to investigate the relationship between the heights of a ramp to the change in speed. I will be measuring the speed from these heights: - * 5cm * 10cm * 15cm * 20cm * 25cm. Formula AIM The aim of this investigation is to find out what the relationship his between the height or a ramp and the change in speed. Hypothesis The greater the height of the ramp the more the speed of the trolley would increase
around the city I’ve come up with several ideas. Electric cars would create less pollution than gas cars so those would highly be encouraged. More encouraged than that would be bikes, walking, and a city trolley system. Certain streets would be blocked off from cars, allowing only city trolleys and bikes through. Also, some streets would be narrower and bike paths would be mandatory along any new street tha...
and 30cm wide. 2. Bricks or wooden blocks 3. 2 dynamics, trolleys or toy cars 4. Plasticine 5. metre rule Method: 1. Two plasticine dummies weighing 20g each were made and placed on the trolleys. 2. Trolley B was placed 30-40cm in front of the ramp. 3. Trolley A was placed 100cm from the end of the ramp. Directly in line with the other trolley. 4. Trolley A was released and was let to collide into Trolley B, observations were made on what happened to the dummies. 5. The
meters out. We used survey poles - 3 meters apart - making sure they were vertical. At each survey pole we took a trowel and measured the depth of the beach. We did this by digging until we met the clay and then noted down our results as we got them. Whilst measuring the depth of the beach we also did the angle. We obtained the results by using a clinometer. To use the clinometer we lined it up against a line of the first pole and pointed it towards the second pole, using the sights to line
The Thickness of Nichrome Wire And Its Effect on Its Resistance Introduction A current is the flow of negative electrons around a circuit. Electrons get pushed out of the negative pole of the cell and drift slowly round the circuit, from atom to atom in the wire, to the positive pole of the cell. A current flowing in one direction like this is called direct current. (d.c.) A cell pushes these electrons around a circuit. It acts as an electric pump. Different cells provide electrons
have done. The length affected the period as stated above and I think this will happen again in this experiment. I looked at a clock with a pendulum to see how it worked. I found that to change the speed of a second you adjust the length of the pole which the pendulum hangs from, so I also based my prediction on that as it is the same principle. I set up a trial experiment to test out the following: * Which angle of displacement to use (e.g. 90°) * How many readings to take * Which
E.B. White's Once More to the Lake "Once More to the Lake", by E.B. White was an essay in which a father struggles to find himself. The essay is about a little boy and his father. They go to a lake where the father had been in his childhood years. The father looks back at those years and tries to relive the moments through his son's eyes. He knows he can't, and has difficulty dealing with the fact that he can't go back in time. E.B. White's way of letting the reader know that the father
more than 30,000 men, in Israel alone, had already been crucified. It all started by this guy named Ormazd from Persia. He thought that the earth was sacred, so he did not want to defile the earth by killing criminals on it so he put them on a large pole and left them there to die. After Pilate gave the order to crucify Christ the soldiers took him. The part of their wickedness was not the act of crucifying Christ, it was by what they did to Jesus before they crucified him. The scripture says in