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An 84-kg fireman slides 5.1 m down a fire pole. He holds the pole, which exerts a 550-N steady resistive force on the fireman. At the bottom he slows to a stop in 0.41 m by bending his knees.
Determine the acceleration of the fireman while sliding down the pole.
Determine the velocity of the fireman just before reaching the ground.
Determine the time it takes for the fireman to reach the ground.
Determine the acceleration of the fireman while stopping.
Determine the time it takes for the fireman to stop after reaching the ground.
research and briefly identify the energy conservation measures that reduce a buildings energy use by reducing one or
The left end of a long glass rod 8.00cm in diameter and with an index of refraction of 1.60 is ground and polished to a convex hemispherical surface with a radius of 4.00cm. Find the height of the image formed by paraxial rays incident on the conv..
What is tension in each rope
a jetliner is moving at a speed of 270 km/h. the plan then decelerates at 4.5 m/s2. what is the minimum runway length on which this aircraft can land
A Carnot engine operates between 230 °C and 120 °C, absorbing 6.30 multiplied by 104 J per cycle at the higher temperature. How much work per cycle is this engine capable of performing
Capacitance and resistance network.
A long solenoid has 150 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.40 cm perpendicular to the solenoid axis. The speed of the electron is 0.056 c (c = speed of light). Find the current i in the solen..
A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18.0 cm. (a) Another car is behind your car, 9.00 m from the mirror, and this car is viewed in the mirror by your passenger
A Hydrogen atom and a Helium atom each with 4 eV of KE approach a thin barrier 6 MeV high which has the greater probability of tunneling through the barrier? Explain.
Two cars collide head on while each is traveling at 90. What is the temperature increase of each car
Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. What impulse is imparted by this force
A walker and a runner leave your front door at the same time. They move in the same direction at different constant velocities. Describe the position-time graphs of each.
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