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A 4.0 kg block is on horizontal table attatched to a 6.0 kg block hanging from frictionless pulley. the blocks are initially moving to the right. if the coefficent of friction is 0.4 between the 4.0 kg block and table, what is the acceleration of the system?
A thin, uniform, metal bar, 3m long and weighing80N , is hanging vertically from the ceiling by a frictionless pivot, Find the angular speed of the bar just after the collision
A fish appears to be 7.00 m below the surface of a pond when viewed almost directly above by a fisherman
A 32cm string being held at a tension of 64.5N has a fundamental frequency of 440Hz. What are the second and third harmonics of the string
An electron is initially at rest just outside a large copper surface that has the charge density of 1.20 x10-6 C/m2. How far has the electron moved in 1.07 x10-9 s if the field is uniform over this region.
A 24-V battery is connected in series with a resistor and an inductor, with R = 9.0 ? and L = 7.8 H, respectively, Find the energy stored in the inductor when the current reaches its maximum value
A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high. What is their total energy at the top of the hill
An object at rest on a flat, horizontal surface explodes into two fragments, one five times as massive as the other one. The lighter fragment gains the velocity of 10.0m/s in the left direction right after the explosion.
One mole of a monatomic gass initially at 273 K and 1 atm is compressed isothermally (T constant) from volume 22.4 L to 11. 4 L, Find the final pressure and draw a PV diagram, Labeling the initial and final states 1 and 2
Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. Th..
On a workday the average decibel level of a busy street is 72.0 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 50 every minute on a weekend, what is the decibel level of street.
Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. What is the weight of the landing craft in the vicinity of Callisto's surface
Two small plastic spheres are given positive electrical charges. When they are 17.0{\rm cm} apart, the repulsive force between them has magnitude 0.200{\rm N} . 1.What is the charge on each sphere if the two charges are equal? 2.What is the charge..
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