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A cyclist is coasting at a steady speed of 16m/s but enters a muddy stretch where the effective coefficient of friction is 0.55.
What will be his speed upon emerging?
in m/s
In what ways is the transducer in medical ultrasound a 'speaker' & 'microphone?', What is the broadest definition of a 'transducer?'
A chair of weight 85.0N lies atop a horizontal floor; the floor is not frictionless. Using Newton's laws, calculate n, the magnitude of the normal force that the floor exerts on the chair
find the velocity of the falling parachutist. assuming the initial velocity is zero the mass is 68.1kg,drag is 12.5 kg/s, gravity is 9.8m/s2 and the time is 10s
Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform rate of 8.00 meters/second2. What is the displacement of Andy's car
Two very small spheres are initially neutral and separated by a distance of 0.60 m. What is the magnitude of the electrostatic force that acts on each sphere
A certain fluid has a density of 1040 kg/m3 and is observed to rise to a height of 2.4 cm in a 1.0-mm-diameter tube. Calculate the surface tension of the fluid
A basketball player makes a jump shot. The 0.607 kg ball is released at a height of 1.97 m above the floor with a speed of 7.22 m/s, What is the work done on the ball by air resistance
To prevent damage to floors (and to increase friction), a crutch will often have a rubber tip attached to its end. by what factor does the tip reduce the pressure exerted by the crutch
The charges and coordinates of two charged particles held fixed in the xy plane are: q1=6.00 ?C, x1=6.700 cm, y1=4.600 cm, Find the direction and magnitude of the electrostatic force on q2
A engineer designs a heat engine using flat-plate solar collectors. What is the maximum possible efficiency of this engine
The three capacitors C= 2.0E-6F in series are connected across a 30V battery. Find the potential difference across each
A 5 kg block is dragged on a horizontal surface in a circular path of radius 2 m. what is the work done by friction during one turn
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