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A string with a mass of 27 g and a length of 2 m is stretched under a tension of 68 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 48 Hz and an amplitude of 4 cm?
A teeter-totter is made of a 3.200 m long plank with a mass of 60.0 kg, what mass must be placed at the left end so that the teeter-totter is balanced
Two capacitors are connected to a battery. The battery voltage is V = 90 V, and the capacitances are C1 = 2.00 ?F and C2 = 4.00 ?F. Determine the total energy stored by the two capacitors
An ice skater has a moment of inertia of 2.5 kg*m2 when his arms are outstretched and a moment of inertia of 1.0 kg*m2, what will his angular speed be when they are tucked in
A jogger jogs around a circular track with the diameter of 325 m in 16 minutes. What was the jogger's average speed in m/s.
A man doing a slow push-up is approximately in static equilibrium. His body is horizontal, with his weight of 763 N supported by his hands and feet, how far from the shoulders is the man's center of gravity
Two hockey players strike a puck of mass 0.158 kg with their sticks simultaneously, exerting forces of 1.17 103 N, directed west, and 9.90 102 N, Find the instantaneous acceleration of the puck
A water pipe having a 2.2 cm inside diameter carries water into the basement of a house at a speed of 0.85 m/s, What is the water pressure at the second floor
the mass of the planet neptune is 4.5x10power 26 kg . itsradius of orbit around the sun is 4.5x10power12m. calculate the potential energy of neptune
A rectangular loop with dimensions 4.20cm by 9.50cm carries current I. What is the direction of the current in the loop
The tungsten filament of a certain 100 W light bulb radiates 4.00 W of light. Find the filament's temperature
One particle, of mass m, moves with a speed v in the x-direction, and another particle, of mass 2m, moves with a speed v/2 in the y-direction. What is the velocity of the center of mass of these two particles
If a discus thrower rotates through the last 46 degrees of a turn in 0.11 seconds and the distance from the axis of rotation to the center of the discus is 1.22m
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