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An amusement park roller coaster starts out on a level track 50m long and then goes down a 50m incline at an angle of 30 degrees to the vertical(y-axis). It then goes up a 20m ramp with incline of 20degrees to the horizontal(x_axis), it then prceeds on a 15m horizontal track and enters, from the bottom, the inside of a circular track and after subtending 25degrees it noticed it is halfway up to its original height.What is the radius of the circular track? If the initial speed is 5m/s how long does it take to reach the bottom of the circular track(end of 15m horizontal track).
In April 1974, John Massis of Belgium managed to move two passenger railroad cars. He did so by clamping his teeth down on a bit thatwas attached to the cars with a rope and then leaning backward while pressing his feet against the railway ties. T..
What was the speed of the car before impact
A 525-? resistor, an uncharged 1.50-µF capacitor, and a battery with an emf of 6.31 V are connected in series, What is the current after one time constant
A ball rolls down a hill 100 m. The hill is inclined 60 degrees. what is the final rotational speed of the ball
If water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1, calculate the Reynolds number. Is the flow turbulent or laminar?
A 1.0-cm-tall object is 60 cm in front of a diverging lens that has a -30 cm focal length, Calculate the image position
A 3.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 60.0°C, how much gasoline spills out
What would be the angle of the first diffraction pattern for a 650 nm laser submerged in water (n=1.33), if the diffraction grating has 800 lines per mm
During an all-night cram session, a student heats up a 0.668 liter (0.668 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. How much coffee (in cubic meters) has spilled out of the beaker
Two point charges are on the y-axis. A 2.0 µC charge is placed at y =1.35 cm, and a -2.46 µC charge is placed at y =-1.70 cm. Obtain the total electric potential at the origin
A proton initially has V=4.0 i -2.0 j +3.0 k and then 4 seconds later has v= -2.0 i -2.0 j +5.0 k (in meters per second). What is the proton's average acceleration in magnitude
A capacitor has a capacitance of 55pF. In the charging process electrons are removed from one plate and placed on the other plate. how many electrons have been transferred
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