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The block in the figure falls from a height of 1.5 m along a 45 ° inclined plane. The coefficient of kinetic friction between the block and the plane is 0.40. When the block reaches the foot of the plane it goes up the inclined plane 30 °, with μc = 0.20. Determine the speed with which the block reaches the foot of the plane.
Calculate the maximum height that the block reaches in the 30 ° inclined plane.
An N- pole of 100 A-m pole strength and an S-pole with 50 A-m pole strength are 50 cm apart. Determine the magnetic induction midway between the two magnets.
A 0.15-m-diameter pulley turns a belt rotating the driveshaft of a power plant pump. The torque applied by the belt on the pulley is 200 Nm, Determine the net force applied by the belt on the pulley
A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 532 and has a speed of 25.5. The motorcycle has a speed of 12.50. What frequency does the motorcyclist hear in this case?
Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 4.20 cm 12.0 cm 29.0 cm. (The density of gold is 19.3 103 kg/m3.
A sealed glass jar contains air originally at a pressure of 1.00 atmand a temperature of 0° C. Discover the air pressure when the jars heated to 310° C. The linear expansion coefficient of the glass is 1.0310-5 (C°)-1.
illustrate the refraction of a light ray from a medium of higher speed to a medium of lower speed. label each of the
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, What is the speed of the third piece
An asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 117 km and with a period of 51.0 h. Find the escape velocity from the asteroid
A wedding ring is tossed into the air and given a spin, resulting in an angular velocity of 12.5 rotations per second. what is the diameter of the ring
A 569-?F capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 88.5 V to 13.3 V in 4.57 s
Calculate the indicted power, the brake power, the brake thermal efficiency and Calculate theoretical cycle efficiency.
two sources source a and source b are emitting the same frequency f with the same amplitude a but are out of phase from
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