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A 3.5 m long simple pendulum swings during 25 cycles in 152 s
1. What is the acceleration due to gravity on the planet where the pendulum is swinging?
2. What is the period of a pendulum with the same length if it is swinging at a location on the earth's surface?
An airplane flies in a loop (a circlar path in a verticalplane) of radius 150m. The pilot's head always points toward thecenter of the loop. What is the speed of the airplane at this point
A beam of protons at an accelerator creates a current of 120 mu/A. If the beam is focused on a target, how many protons strike the target in 30.0 s
two particles one with charge -1.25 oc and one with charge 1.87 ?c are 8.09 centimeters apart. what is the magnitude of
A step-up transformer has 26 turns on the primary coil and 770 turns on the secondary coil. what input current and voltage are needed
Each of the following objects has a radius of 0.174 m and a mass of 2.79 kg, and each rotates about an axis through its center, Find the magnitude of the angular momentum of each object
What is the magnitude of the acceleration of a speck of clay on theedge of a potter's wheel turning at 42 rpm(revolutions per minute) if the wheel's diameter is 35 cm
A hoop of mass 1.5 kilogram and radius 60 centimeter has a string wrapped around its circumference and lies flat on a horizontal frictionless table. Find how far does the center of the hoop travel in 3.0 second
A long, straight wire that has a radius of 1.00 mm is coated with an insulating ferromagnetic material that has a thickness of 3.00 mm and a relative magnetic permeability of 400. The coated wire is in air and the wire itself is nonmagnetic. The wire..
A particle leaves the origin with an initial velocity v=(2.4m/s)x and moves with constant acceleration a=(-1.90 m/s2)x + (3.20m/s2)y. What is the particles velocity at this time
q1. what are sunspots and how are they related to the suns magnetic field? is the magnetic field stronger weaker in
A 60 kg person drops from rest a distance of 1.20m to a platform of negligible mass supported by a stiff spring. The platform drops 6cm before the person comes to rest.
A block with mass m =7.5 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.25 m. what is the magnitude of the net force on the block
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