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Two unfortunate climbers, roped together, are sliding freely down an icy mountainside. The upp climber(mass 73 kg) is on a 12 degree slope to the Horizontal, but the lower climber(mass63kg) has gone over edge to a steeper slop of 38 degrees. (a) Assuming frictionless ice and massless rope, what is the acceleration of the pair? (b) The upper climber manages to stop the slide with an ice ax. After the climbers have come to a complete stop, what force must the ax exert against the ice?
the transverse displacement of a particular wave on a string is given by dxt 0.3 cos1.57x ? 7.85t where d and x are in
A uniform electric field exists in the region between two oppositely charged plane parallel plates. Find the speed of the electron when it strikes the second plate
A 1000-turn coil of wire that is 2.4cm in diameter is in a magnetic field that drops from 0.12T to 0T in 11ms. What is the emf of the coil
At a recent rock concert, a dB meter registered 130 dB when placed 1.50 m in front of a loudspeaker on the stage. What was the power output of the speaker
Four identical metallic objects carry the following charges: +6.6 µC, +3.4 µC, -7.0 µC, and -2.0 µC. What is the final charge on each object
Find the current that flows if the same potential difference. A 63 kg trampoline artist jumps vertically upward from the top of a platform with the speed of 4.8 m/s. If the trampoline behaves like a spring of spring constant 6.2×10^4 N/m, how far ..
you are driving into st. louis missouri and in the distance you see the famous gateway-to-the-west arch. this monument
A small mailbag is released from a helicopter that is descending steadily at 1.00 m/s. After 3.00 s, What is the speed of the mailbag
A cart for hauling ore out of a gold mine has a mass of 427 kg, including its load. Find the work that the donkey performs on the cart during this process
Calculate the Reynolds number for 25C water flow in a 1-in nominal diameter sanitary pipe at 0.5 kg/s
An x-ray tube is operated at 48200 V. Calculate the minimum wavelength of the radiation emitted by this tube
Two students perform an experiment with a train and a ball. Michelle rides on a flatcar pulled at 8.35 m/s by a train ona straight, horizontal track. What was the initial speed of ball as seen by Gary
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