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Please explain in detail and step by step a 1.0kg block is held at rest against a spring with a force constant k = 740N/m . Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless except for a rough patch of width 5.0cm that has a coefficient of kinetic friction = 0.40. Find d such that the block's speed after crossing the rough patch is 2.4m/s.
A bottle containing 2 kg of water at a temperature of 15°C is placed in a refrigerator where the temperature is kept at 5°C. How much heat is transferred from the water to cool it to 5°C
Pandora Jewellery has turn into the best choice for ladies all more than the world who desires to express their personal style. The Pandora Bracelets provide a rich array of stylish diamond jewellery developed by artisans utilizing the finest mate..
An ac generator has a frequency of 7.4 kHz and a voltage of 41 V. When an inductor is connected between the terminals of this generator, What is the inductance of the inductor
Dan is gliding on his skateboard at 4 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6 m/s (as measured by an observer on the ground). Dan's mass is 50 kg and the skateboard's mass is 7 kg. How fast is Dan going..
An air molecule is moving at a speed of 438m/s. How many meters would molecule move during 7ms (milliseconds) if it didn't collide with any other molecules.
A 170g mass attached to a horizontal spring oscillates at a frequency of 3.70Hz. Determine the maximum speed, the maximum acceleration, total energy, and position at t=3.40s.
A 2.65 block is pushed 1.69m up a vertical wall with a constant speed by a constant force of magnitude F applied at angle 55.4 degrees with the horizontal. g= 9.8 m/s2. If the coefficient of kinetic friction between the block & wall is 0.54, Calcu..
A student throws a baseball at a large gong 76 m away and hears the sound of the gong 1.95758 s later. What was the average speed of the base- ball on its way to the gong
For a Nd:YAG laser there are four pump levels located at 1.00 eV, 1.24 eV, 2.40 eV, and 2.54 eV. What is shortest possible pump wavelength (in nanometers) that could be used to populate any of the excited energy levels
A typical capacitor in an MP3 player has C = 5 ?F. If a charge ±37 ?C is placed on the plates, what is the voltage across the capacitor?
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1360 Hz. What is the speed of the bird
A 83-kg skater sliding due southeast at an initial speed of 2.0 m/s runs into a snow bank, What is change in the kinetic energy of the skater
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