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The drawing to the left shows a mass m= 1.5 kg hanging from a spring with spring constant k = 10 N/m. The mass is also attached to a paddle which is emersed in a tank of water with a total depth of 33 cm. When the mass oscillates, the paddle acts as a damping force given by -b(dx/dt) where b= 260 g/sec. Suppose the mass is pulled down a distance 1.2 cm and released.
a) What is the time required for the amplitude of the resulting oscillations to fall to one third of its initial value?
b) How many oscillations are made by the block in this time?
The radioactive hydrogen isotope 3H is calledtritium. It has beta-minus decay and a daughter necleus of 3He. What is the time constant for tritium
Gas is contained in a 9.00-L vessel at a temperature of 25.0°C and a pressure of 5.00 atm. Determine the number of moles of gas in the vessel
you walk 30m south and 30m east. find the magnitude and direction of the resultant displacement both graphically and
a 5.0 kg ball is initially sitting at rest on top of a 48 meter hill. the ball is pushed with a force of 25 n for 3.0 s
Two blocks, one of 50 g and the other of 46 g, are connected by a string and hung over a frictionless pulley which has a radius of 5 cm. What is the moment of inertia of the pulley
An object with a density of 771.0 kg/m3 and a mass of 1435.0 kg is thrown into the ocean. Find the volume that sticks out of the water
You are on a team that will recover a ship from the sea. You have been given the task to perform a few calculations to move your team forward. find the tension when the body is completely out of water
Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. What is the maximum accleration of the cells as they move toward each other and just touch
An electric dipole has opposite charges of 5 x10^15 C separated by a distance of 0.4mm. find the potential energy of the dipole in the given position
A box of books weighing 334 N is shoved across the floor by a force of 479 N exerted downward at an angle of 33° below the horizontal. What is the maximum coefficient of kinetic friction between the box and the floor that allows the box to move with ..
the planet mars has a mass of 6.42e23kg and a raduis(from its centre to the surface)of 3.38e6m. determine how heavy he would "feel" he weighed
A bird watcher meanders through the woods, walking 0.506 km due east, 0.736 km due south, Determine the magnitude (in kilometers) of the bird watcher's displacement
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