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A 600 g steel block rotates on a steel table (μk = 0.6) while attached to a 1.1 m long hollow tube. Compressed air fed during the tube and ejected from a nozzle on the back of the block exerts a thrust force of 4.6 N perpendiculars to the tube. The maximum tension the tube can withstand without breaking is 50 N. If the block starts from rest, how many revolutions does it make before the tube breaks?
A crate of mass m1 on a frictionless inclined plane is attached to another crate of mass m2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is suspended in air.
A 150 g ball and a 220 g ball are connected by a 36{rm cm}-long, mass less, rigid rod. The balls rotate about their center of mass at 130 rpm. What is the speed of the 150 g ball.
the temperatures indoors and outdoors are 303 and 313 k respectively. a carnot air conditioner deposits 6.64 105 j of
an astronaut on a distant planet wants to determine its acceleration due to gravity. the astronaut throws a rock
What is the rms speed of nitrogen molecules at a temperature of 37 oC? The mass of a nitrogen molecule is 4.680×10-26 kg
A wire carries a current of 10A in the +xdirection in a uniform magnetic field of .40T. Find the magnitude of the force per unit length and the direction of the force on the wire if the magnetic field points in the (a) the +x direction,
A level road has a turn with a 50m radius of curvature. What is the max speed for a car to negotiate this turn when the road is dry and the coefficient of static friction is 0.82
Find the difference of the initial and the final masses for the decay 137N?126C+p. The atomic masses of 137N, 126C,
an electron moves at a speed of 60.0 ms directly toward a stationary electron when the two electrons are 1.00 m apart.
Robert tell is said to have shot an apple off his sons head with an arrow. If the arrow was shot with an initial speed of 35m/s and the boy was 24m away, at what launch angle did robert aim the arrow
A 0.51 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.18 m. Determine the total energy of the system
What is the percent change in momentum of a proton that accelerates from 0.42c to 0.91c?0
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