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Two blocks are placed on a frictionless inclined plane as shown in the figure. There is friction between the blocks. The coefficient of kinetic friction is Uk= 0.14 and that of static friction is Us=0.55. A string is tied to the lower block, and the blocks are pulled up the plane with a force P= 31.5 N due to which the blocks accelerate with an acceleration of a= 0.667 m/s2. If the block m1=2kg does not slip on the block m2=5 kg while the blocks are accelerating together, what will be the magnitude of static friction force between the blocks m1 and m2?
A river narrows at a rapids from a width of 15m to a width of only 6.0m. The depth of the river before the rapids is 2.7m ; the depth in the rapids is 0.70m. Find the speed of water flowing in the rapids
a bullet is moving at a speed of 367 ms when it embeds into a lump of moist clay. the bullet penetrates for a distance
When a person inhales, air moves down the bronchus (windpipe) at 14 cm/s. determine the pressure drop in the constriction
A person walks 25.0° north of east for 2.70 km. How far would the person walk due north and due east to arrive at the similar location.
A plastic sphere floats in water with 65.0% of its volume submerged. This same sphere floats in glycerin with 51.6% of its volume submerged. Determine the density of the glycerin
a ball with mass 35 grams and charge 25 microcoulombs is thrown up from earth with initial speed of 22 ms. the max
A roller coaster car traveling at a constant speed of 20.0 m/s on a level track comes to a straight incline with a constant slope, How far has the car traveled up the incline at this time
a find the equivalent resistance of four 60- resistors connected in parallel.b if a potential difference of 12v is
A converging lens with focal length of 6.0cm is placed 8.0 cm to the right of a diverging lens of focal length of -4.0 cm. A .4 cm tall object is placed 4.0 cm in front of the diverging lens
A sleigh and driver with a total mass of 120kg are pulled up a hill with a 15degrees incline by a horse, what is the power output of the horse
A walker and a runner leave your front door at the same time. They move in the same direction at different constant velocities. Describe the position-time graphs of each.
A weather vane initially at rest has a moment of inertia of 0.110 kg · m2 about its axis of rotation. Find the angular velocity of the weather vane just after it is struck
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