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A10.5kg object oscillates at the end of a vertical spring that has a spring constant of2.45104N/m. The effect of air resistance is represented by the damping coefficientb= 3.00 N·s/m.
(a) Calculate the frequency of the dampened oscillation. Hz
(b) By what percentage does the amplitude of the oscillation decrease in each cycle? %
(c) Find the time interval that elapses while the energy of the system drops to3.00%of its initial value. s
A 3 kg block moves down a hill that makes a 40° angle with the horizontal direction. Ignoring friction and assuming g=10 m/s2, what is the magnitude of the acceleration of the block?
Two parallel wires 10 cm apart carry currents of 18 A. What is the magnetic force between two wires for both case
A block with mass m = 21.7 kg slides down an inclined plane of slope angle 33.6 o with a constant velocity. It is then projected up the same plane with an initial speed 1.85 m/s. whereas the mass is heading up the incline, what is the magnitude of ..
For the fan powered glider moving along the track the equation of the motion is. for the exploration of sensors labs there many things to look at. One is the g sensor. what is the one of the bottons on that sensor?
Two Satellites A and B, each of mass 50 kg are in circular orbits at altitudes of 1000 km and 35000 km respectively. What is the difference in gravitational potential energies of the two satellites in their respective orbits
q1.a square coil of wire with 15 turns and an area of 0.40 m2 are placed parallel to a magnetic field of 0.75 t. the
A toy balloon is initially at a temperature of T = 15o C. Its initial volume is 0.0042 m3 (It is a 10 cm radius sphere). Assume that the pressure in the balloon always equals atmospheric pressure, 101.3 kPa.
What are the basic components of Fire as a chemical and chain reaction? What are the major phases of Fire? What are the main factors the influence how Fire is spread and Fire behavior.
On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.2 kg basket of goodies beside her. What is the acceleration of the basket
Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, Calculate the minimum stopping distance for which the load will not slide forward relative to the truck
A 170-g hockey puck sliding on ice perpendicularly impacts a flat piece of sideboard. Its incoming momentum is 6.50kg*m/s . It rebounds along its incoming path after having suffered a momentum change (magnitude) of 8.80kg*m/s, If the impact with t..
The glass core of an optical fiber has an index of refraction 1.60.The index of refraction of the cladding is 1.48. What is the maximum angle a light ray can make
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