During the land slide 400 tonnes of rock fell from the cliff from a height of approximately 160ft.The land slide occurred in two stages first falling a little bit then the larger amount falling after. Visitors to the areas tried to evacuate from the scene after the first smaller slide occurred but
So you see, Newton's 3rd law can explain your balloon powered car. air shoots out the back at high speed and the car moves forwards (more or less) at low speed. So the force used to accelerate all that air backwards has an opposite force on the balloon (reaction) which is tied to the car so pushes in the opposite direction. Well the air's coming out fast in the beginning but thats when the car is only just moving, it takes a while to speed up and it takes even longer if you have a heavy car. So you may be able to argue it shows that f is proportional to Mass x acceleration (but to be honest I think that would be stronging it a bit - balloons don't seem to give very constant thrust.
According to the seismogram shown in the figure, which wave is the fastest? [pic] a. Tidal wave b. Surface wave [pic] c. P-wave d. S-wave 15. What is the study of earthquakes
And as the coaster train goes down the first hill, all the stored potential energy is transferred into kinetic energy. And it is also where the max kinetic energy is. It goes over the second hill and then up the loop and as it is at the top of the loop it has a high potential energy and then that energy is transferred into kinetic energy as the coaster train goes through the rest of the track. Coaster tracks serve to channel this force – it controls the way the coaster car moves and where it goes. Like at the bottom of the first hill as the car goes up the hill gravity pulls on it, so that it decelerates.
[pic] As he tried his approach with inclined planes of different angles, he discovered that the acceleration changed. He asserted that as the angle of the inclined plane approached 90°, the acceleration approached our current value of g. Thus, he related acceleration due to gravity with the sin of the angle of the plane. a = g sin θ More importantly, he found that all bodies, regardless of weight, fall with the same uniform acceleration. The Experiment: [pic] Determining g on an Incline Purpose To use a motion detector to obtain the speed and acceleration of a cart rolling down an incline. To determine the free-fall acceleration g from a graph of acceleration vs. sine of track angle.
An inward tilt during eruption is much steeper than that of re-inflation. 6. What are "vesicles"? (page 99, para 1) Tiny bubbles that have gas trapped in them after the solidifying of the magma after eruption. 7.
The magma cools and falls to the earth as pumice. Vesuvius erupts in this way once in every 2,000 years. * Mixed in with the pumice stones were lithic – cold dense rocks torn from inside the volcano and carried up into the atmosphere only to fall back to earth as deadly missiles traveling at speeds reaching 180 kilometres per hour. At the peak of the eruption, a staggering 100,000 tons of magma, ash and gas was released from the volcano every second, traveling upwards at the speed of a jet plane to reach 33 kilometres in height – that’s 3.5 times the height of Everest. * From beginning to end, the eruption took just under 24 hours.
Chapter 3: Linear Motion (Questions 20 and 22) 20.) Suppose that the three balls shown start simultaneously from the tops of the hills. Which one reaches the bottom first? Explain. Answer: -Of the three balls that are rolled, the ball in the middle should reach the bottom first strictly based on the fact that it travels down a steeper slope at the beginning, resulting in a faster acceleration then the other two balls.
Before 1980, the last eruption of Mount St. Helens was between 1840 and 1850. The volcano did not happen overnight however, it was caused by multiple earthquakes and lots of pressure buildup through time. The Mount St. Helens volcano eruption was the most recent volcanic eruption that did significant damage in the United States. The formation of Mount St. Helens millions of years ago is the reason why the eruption was so violent. The Juan de Fuca Ridge, which lies between the Pacific and Juan de Fuca plate pushes the two plates in opposite directions causing the Juan de Fuca plate to sub duct underneath the continental plate causing a subduction zone and large pieces of rock are pushed into the opposite plate causing a mountain to form.
How much work is needed to accelerate the car from 50 km/hr to 150 km/hr? 1) 2 W0 2) 3 W0 3) 6 W0 4) 8 W0 5) 9 W0 4 Two blocks of mass m1 and m2 (m1 > m2) slide on a frictionless floor and have the same kinetic energy when they hit a long rough stretch (m > 0), which slows them down to a stop. Which one goes farther? 1) m1 2) m2 3) they will go the same distance 2 A golfer making a putt gives the ball an initial velocity of v0, but he has badly misjudged the putt, and the ball only travels one-quarter of the distance to the hole. If the resistance force due to the grass is constant, what speed should he have given the ball (from its original position) in order to make it into the hole?