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A piano wire with mass 3.45g and length 85.0cm is stretched with a tension of 31.0N. A wave with frequency 120Hz and amplitude 1.70mm travels along the wire.
Part A Calculate the average power carried by the wave.
Part B What happens to the average power if the wave amplitude is halved?
A viewing window in the Atlanta aquarium is 58 inches wide and 52 inches high. what is the outward force on the window
A 120 W lightbulb and a 90.0 W lightbulb are connected in a series. what is the current through the two bulbs
A 43 kg girl and an 8.4 kg sled are on the frictionless ice of a frozen lake, 17 m apart but connected by a rope of negligible mass. What is the acceleration of the girl
A projectile of mass 350-g is accelerated from rest at 8.25 m/s2 for 3.5s. Calculate how fast the ball and embedded projectile are after the collision
a piece of pure gold (density= 19.3g/cm^3) is suspected of having a hollow center. What is volume of the hollow center
what are the ax and by components of the vector that must be added to the following three vectors so that the sum of
A velodrome track is banked so that a bicycle traveling at 62.8 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 79.0 m
How much work does the electric field do in moving a -7.7 microCoulomb charge from ground to a point whose potential is +positive 55V higher.
A spaceship is visiting Planet X. While descending to the surface, its rockets produce 25 kN of upward thrust and the spaceship's speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
Suppose you put five electrons into a 0.30nm -wide one-dimensional rigid box (i.e., an infinite potential well). What is the ground-state energy
A battery with an emf of 12.0 V shows a terminal voltage of 11.8 V when operating a circuit with four light bulbs each rated at 4 W (at 12.0 V) which are connected in parallel. What is the current in each bulb
Plutonium has a half life of 2.4 × 104 years. How long does it take for 99% of the plutonium to decay, What is the binding energy of the 4He nucleus
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