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A simple harmonic oscillator consists of a block of mass 1.40 kg attached to a spring of spring constant 100 N/m. When t = 0.840 s, the position and velocity of the block are x = 0.110 m and v = 3.790 m/s. (a) What is the amplitude of the oscillations? What were the (b) position and (c) velocity of the block at t = 0 s?
A 45.0 g ball of copper has a net charge of 1.75 µC. What fraction of the copper's electrons have been removed
A circular pipe has a diameter of 3 cm and then narrows to 2 cm. When water (density= 1000kg/m^3) flows during at a certain rate, the pressure is 24.0 kPa in the smaller section and 32.0 kPa in the larger section. There is no height change. What is t..
A hollow non-conductiong sphere has a uniform charge density ?. The inner and outer radius of the sphere are r1 and r2m respectively. What is the total charge of this sphere
A block of mass m = 12.0 kg has a speed v and is behind a block of mass M=40.0 Kg that a speed 0.500 m/s The surface is frictionless . the Block collide and stick together. After the collision, the blocks have a common speed of 0.900 m/s. what was in..
A refrigerator does 18 kj of work while moving 115 kg of thermal energy from inside the refrigerator. What is its coefficient of performance
A potter's wheel of radius 0.21 meter is turned on at t = 0 and accelerates uniformly. Obtain the angular acceleration and the total angular displacement of the wheel during this time
A supertrain of proper length 205 m travels at a speed of 0.87c as it passes through a tunnel having proper length 74 m. How much longer is the tunnel
A diver runs horizontally off the end of a diving board with an initial speed of 1.85m/s. if the diving board is 3.00 meter above the water, find the divers speed just before she enters the water
There are four charges, each with a magnitude of 2.06 μC. Two are positive and two are negative. Calculate the magnitude of the net electrostatic force experienced by any charge
A hydrogen like ion Mg 11+ drops from its n=2to its n=1 level. What is the wavelength of the photonemitted? What sort of radiation is this
AN ELECTRIC MOTOR ACCELERATES THE 6-in DIAMETER GRINDING WHEEL AT A RATE 0F 150 rad/s2 FROM REST UNTIL IT REACHES ITS OPERATING SPEED OF 3600 rpm. DETERMINE: The time in seconds required for the wheel to reach 3600rpm
A service station charges a battery using a current of 6.7 A. for 3.0 hr. How much charge passes through the battery
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