A horizontal force of magnitude 45.3 N pushes a block of mass 4.26 kg across a floor where the coefficient of kinetic friction is 0.633.(a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 2.63 macross the floor? (b) During that displacement, the thermal energy of the block increases by 31.4 J. What is the increase in thermalenergy of the floor? (c) What is the increase in the kinetic energy of the block?(a) NumberiUnits(b) NumberiUnits(c) NumberiUnits>>

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Answered: A horizontal force of magnitude 45.3 N…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Consider a mass-spring system. The spring has a spring constant of 2.35e+3 N/m. On the end of the spring is a mass of 0.840 kg. At the moment that the block is at the system's equilibrium position, it has velocity 2.24 m/s. What will be the maximum displacement of the block from equilibrium if we ignore all friction. Please enter a numerical answer below. Accepted formats are numbers or 'e' based scientific notation e g. 0.23.-2. 16, 523-8
A 25-kg block shown in the figure rests on a rough surface having a coefficient of kinetic friction of µk = 0.25. A variable force F = (50 +s2) N, where s is in m, acts on the block that will result to spring compression. Determine the power developed (in kW and hp) by the force the instant the block has moved s = 1 m. Assume that the spring is originally unstretched (s = 0) and the block is at rest
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1. A skier of mass 42.1 kg starts at the top of a hill with a speed of 5.30 m/s. The hill is angled at 27.20 and is 11.2 m high. The skis have jets that do 575 J of work. The coefficient of kinetic friction between the skis and the snow is 0.100. When the skier gets to the bottom of the hill, the skier slides on horizontal ground that is frictionless. A spring with a spring constant of 145 N/m is 1.0 m from the bottom of the hill to stop the skier. A) How fast is skier moving at the bottom of the hill? B) How far is the spring compressed to stop the skier? Pictorial Representation Mathematical Representation Aa MacBook Pro DII DD 吕0 G00 000 FB F9 F10 F4 F5 F6 F7 F3 * #3 2$ 4 7 8. E R A LO
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