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a 63-kg water skier is pulled up a 14.0 degree incline by a ropeparallel to the incline with a tension of 512 N. the coefficient ofkinetic friction is 0.27. What are the magnitude and direction ofthe skier's acceleration.
A singly charged particle accelerated through a potential difference of 115V has a wavelength of 4.4fm. Find it's mass. An electron is accelerated through a potential difference of 400V. Find its wavelength and momentum.
a proton moving with a velocity of 3.0104ms enters a magnetic field of 0.30t.if an angle between the velocity of the
two parallel mirrors are a distance d apart. An object is placed 1.0 inch in front of the right-hand mirror. Calculate the distance between the mirrors
In order to fabricate a uniform wire of resistance 2.7 ?, out of m=1 g copper which has a density of 8.92×103 kg/m3, What should be the length of the wire
A kid picks up a toy of mass 139g, from the floor. The kid lifts the toy 42.2cm above the floor. How much work does the kid do on the toy
If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, illustrate what distance would the bird cover? Express your answer in miles.
After a golf ball is hit it takes off with an initial speed of 26.2 m/s and at an angle of 39.5° with respect to the horizontal. The golf field is flat and horizontal.
The active element of a certain laser is an ordinary glass rod18.0 cm long and 1.21 cm in diameter. If the temperature of the rodincreases by 70.5oC, Calculate its increase in diameter
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 parallel-plate capacitor is formed from two 9.10cm x 9.10cm electrodes spaced 2 mm apart. The electric field strength inside the capacitor is 5.00*10^6 . What is the charge (in nC) on each electrode ?What is the final velocity of the electron.
In an aluminum pot, 0.15 kg of water at 100 degrees c boils away in four minutes. find the temperature at the aluminum-steel interface
The 6.5 kg box has acceleration to the left of 3.50 m/s^2. There is an applied force of 50 N acting on the box. Determine the magnitude of the friction acting on the box
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