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Climbers attempting to cross a stream place 340kg log against a vertical frictionless ice cliff on the oppsite side the log slopes at 27 degrees and its center of gravity is one third of its way along its 6.3m length. if the coefficent of friction between the bottom and the log is and the ground is 0.92 whats the maximum mass of the heaviest person who can safely ascend on to the top of the log without slippage?
A luge and its rider, with a total mass of 90 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 38 m/s. If a force slows them to a stop at a constant rate of 1.4 m/s2.
At the top of the swing, the club's angular velocity is zero; at the instant of ball impact, the club's angular velocity is 30 rad/s. The swing moment of inertia of the club about the grip is 0.220 kg x m^2. What average torque does Doug exert on ..
q1. a ski jumper has 1.2 acute 10 j of potential energy at the top of the ski jump. the friction on the jump slope is
Two conductors having net charges of +18.0 µC and -18.0 µC have a potential difference of 18.0 V between them. (a) Determine the capacitance of the system. F (b) What is the potential difference between the two conductors if the charges on each are i..
question to appreciate the strength of gravity calculate the number of steel cables that would be required in the
Find the speed of transverse waves in the string. Find the tension of the string. If the violinist wants to play a note with a frequency of 587 Hz, where should she place her finger?
you throw a ball m 2kg with an initial velocity of 20 ms at an angle of 60 degrees from the top of a 30m cliff. a
Tension is maintained in a string. The observed wave speed is 24 m/s when the suspended mass is 2.8 kg. The acceleration of gravity is 9.8 m/s2. What is the mass per unit length of the string
The decibel level of ajackhammer is 125 dB relative to the threshold of hearing. Determine the sound intensity produced by the jack hammer
An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field B. Obtain the ratio of the radii of their circular orbits when the electron and the proton have the same kinetic energy
A pendulum has a length of 7.46 meter. Find its period. The acceleration of gravity is 9.8 m/s2. Find how long would the pendulum have to be to twice the period
The index of refraction for red light in water is 1.331, and thatfor blue light is 1.340. If a ray of white light enters the waterat an angle of incidence of 88.20°, what are the under water angles ofrefraction for the blue and red components of the ..
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