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A puck is sliding on flat ground with an initial speed to 7 m/s and comes to rest after 1.25 s. Approximately which is the coefficient of kinetic friction between the puck and the ground?
A point mass on a Hooke's Law spring is pulled aside 10 cm from the center position and then released. Calculate the displacement of the point mass when t = 0.44s
A prehistoic bug (m=0.02kg) has escaped into the moder world. how fast (and in what direction) is the ubg traveling after the collision
The turbines in a jet engine rotate with frequency 16.0 kHz. A) Find the period. Express your answer with the appropriate units. B) Find the angular frequency. Express your answer with the appropriate units.
The human eye can detect light intensities as small as about 8 10-23 W/m2. The corresponding electric field amplitud is 2.5E-10N/C, How does this force compare to the weight of an electron
A sports car traveling along a straight line increases its speedfrom 19.7 mi/h to 59.7 mi/h. What is the ratio of the final to the initial magnitude of its momentum?
Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. Determine the final speed of each disk
Two adjacent natural frequencies of an organ pipe are determined to be 351 Hz and 405 Hz. (Assume the speed of sound is 343 m/s.) (a) Calculate the fundamental frequency of this pipe. Hz (b) Calculate the length of this pipe. m
make a circuit where 2 lights stay on at all times but you can turn 2 lights onoff. diagram the circuit in the drawing
the mass of platinum is 21.4 x 103 kgm3. a platinum wire with a radius of 0.500mm 1.20 m long fixed at both ends has a
Water is flowing in a cylindrical pipe of varying circular cross-sectional area, and at all points the water completely fills the pipe. What is the radius of the pipe at this point
A photographer in a helicopter ascending vertically at a constant rate of 10.5m/s accidentally drops a camera out of a window when the helicopter is60.0m above the ground. (a) How long will the camera take to reach the ground? (b) What will its speed..
a 95 kg clock initially at rest on a horizontal floor requires a 650 n horizontal force to set it in motion. after the
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