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i am not sure how to began or even attempt this problem "aroler coaster car moves 200ft and than rises 135ft an angleof 30.0 degrees above the horizontal. it then travels 135ftat an angle of 40.0 degrees downward. what is its displacement from its starting point?
A car travelling at 25.0 m/s runs out of gas while travelling up a 33.0 degree slope. How far up the hill would it coast before starting to roll back down.
If the height of the water slide in the figure below is h1 = 2.10 m and h2 = 1.90 m, at what location does the swimmer splash down in the pool
An engine with an output of 170 W has an e?ciency of 45 %. It operates at 12 cycles/s. How much heat is absorbed in each cycle
A 3.8uC charge is at the center of a cube 7.0cm on each side. What is the electric flux through one face of the cube
A wire loop with an area of 3*10^-2 m^2 is in a magnetic field of 0.23 T directed at an angle of 30 degrees to the plane of the loop, what is the average induced emf in the loop
He+ is a helum atom with one electron missing. Treating this like a hydrogen arom, what is the first excited state of this atom
A dart is thrown at a dartboard 2.37 m away. When the dart is released at the same height as the center of the dartboard, At what angle relative to the floor was the dart thrown
A rock is tossed straight up with a velocity of 40.0 m/s.When it returns, it falls into a hole 11.5 m deep. What is the rock's velocity as it hits the bottom of the hole?
A conductor is found to be transparent to ultraviolet light with wavelengths shorter than 200 nm. Assuming a permittivity equal to that of vacuum, and assuming that the effective mass equals the free-electron mass, calculate the Hall coefficient.
A certain string just breaks when it is under 400N of tension. At approximately what speed will the string break
When additional mass is added to the piston, the height of the piston decreases to 16.4 cm. Find out the new pressure applied by the piston.
An isolated conductor of arbitrary shape has a net charge of +9.0 10-6 C. Inside the conductor is a cavity within which is a point charge q = +3.4 10-6 C. What is the charge on the cavity wall
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