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A 60kg person walks on a 100kg log at therate of 0.80m/s (with respect to he log). With what speed does the log move, with respect to the shore?
An automobile has a 24 Watt reading lamp in the ceiling of the car. If it is attached to the 12 Volt car battery, how much current flows through the bulb
A mass m1 = 8.99 kg at rest on a horizontal frictionless surfaceand connected to a wall by a spring with k = 70.0N / m collides with a second mass m2 = 5.00 kg, What is the maximum compression of the spring
Now suppose the gliders in the previous problem collide completely inelastically so that they stick together rather than rebounding off each other after they collide. Compare the initial and final kinetic energies
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of the accident was 0.59
An ordinary glass is filled to the brim with351.0mL of water at 100°C. If the temperature decreased to29°C, how much water could be added to the glass
A weather balloon filled with helium gas has a volume of 279 m3, What is the new volume of the balloon
a physics professor demonstrates the doppler effect by tying a 600hz sound generator to a 1.0-m-long rop, what are the highest and lowest frequencies heard by a student in the classs room
A 2.00 kg steel gas can holds 10.0 L of gasoline when full. What is the average density of the full gas can
A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 521 N. As the drawing shows, Find the tensions in the rope to the left and to the right of the mountain climber
A hawk flies in a horizontal arc of radius 14 m at a constant speed of 5 m/s. (a) Find out its centripetal acceleration. (b) It continues loftly along the same horizontal arc but increases its speed at the rate of 1 m/s2. Find out the acceleration..
A small ball rolls off the roof edge of a building with a horizontal speed of 2.3 m/s. the ball hits the ground a distance of 15.8 m from the buildings base. Calculate the following: (neglect any air resistance and spin) A) the height of the building..
A beam of unpolarized light of intensity 33.0 W/m2 passes through a polarizing sheet. What is the electric field amplitude of the transmitted beam?
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