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A harmonic wave on a string with a frequency of 80 Hz and an amplitude of 0.025 m travels in the +x direction with a speed of 12 ni1s.
(a) Write a suitable wave function for this wave.
(b) Find the maximum speed of a point on the string.
(c) Find the maximum acceleration of a point on the string.
Two submarines are moving towards each other in a portion of the Atlantic Ocean where the water is calm. Sub A is moving at 14.0 m/s, What frequency does sub B detect
A ball is suspended by a string and moves in a horizontal circle. One such pendulum has a 100g ball at the end of a 1.5 meter long string and has an orbit of radius 30.0cm. Determine the net force acting on the ball and the acceleration
A van of mass 1420 kilogram traveling at 20 m/s is at the foot of a hill that rises 120 meter in 2 kilometer. Calculate the average power delivered by the van engine
A metal rod of length 2.0 m is moved at 6.0 m/s in a direction perpendicular to its length. A 5.0 m T magnetic field is perpendicular to both the rod and its velocity. If the resistance of the rod is 15 mΩ, what is the current in the rod?
A battery of ? = 2.70 V and internal resistance R = 0.700 ? is driving a motor. The motor is lifting a 2.0 N mass at constant speed v = 0.50 m/s. Assuming no energy losses, find the current i in the circuit. Enter the lower current.
a 2.73 kg wood block is launched up a wooden ramp that is inclined at a 30deg angle. the blocks initial speed is 10.15
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is 2.70*10-28 kg and that of the heavier fragment is 1.65*10-27 kg. If the lighter fragment has a speed of 0.893c after the breakup, what is t..
a sinusoidal transverse wave moves along a stretched string in the +j direction with amplitude 5 cm, wavelength 2 m, and wave speed 200 m/s. How much average power is transmitted along the string
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
A spaceship of length L moves with a speed 7c/12 with respect to the ground. A ball is thrown from the back of the ship to the front. The speed of the ball with respect to the ship is c/3. Apply the Lorentz transformations to find:
The chemical atomic mass of hydrogen, with the two stable isotopes 1H and 2H (deuterium), is 1.00798. Use m(H1) = 1.007825 u, determine the natural abundance of 2H isotope
a 3500-kg vehicle moving east at 50 kmh collides head-on with a6000kg vehicle moving west at 40 kmh. the two vehicles
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