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A 3.57 kg block is drawn at constant speed 4.06m along ahorizontal floor by a rope. The force on the block from therope has a magnitude of 7.68 N and is directed 15.0 degrees abovethe horizontal. What are
(a) the work done by the rope's force,
(b) the increase in thermal energy of the block-floorsystem, and
(c) the coefficient of kinetic friction between theblock and floor?
Jupiter has an average distance from the Sun that is about 5.2 times that of Earth. determine the orbital period for Jupiter
q1. over a 30-day period a power plant generates an average of 751 mw of electrical power and 1225 mw of waste heat and
a 0.5kg block at rest on a table is attached to a horizontal spring with a spring constant k200 nm. the spring is
A 650 kg elevator starts from rest. It moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
A 200g ball on a 60 {cm}-long string is swung in a vertical circle about a point 200 {cm} above the floor.
two particles of charges q1 and q2 are separated by distance d. the net electric field due to the particles is zero at
Consider a model thermodynamic system in which the allowed (nondegeerate) energy levels are 0, E, 2E, 3E. Determine how many macrostates are possible
An ion with charge q is distance r from a molecule with polarizability (alpha). Find an expression for the magnitude force F
question1a blocks slides all along a track that descends through distance h. the track is frictionless except for the
In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth, How much work did Arfeuille do on the object
David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. What is her speed as she passes him
Consider three capacitors, of capacitance 3600 pF, 5800 pF and 0.0100 ?F. What is the minimum capacitance you can obtain for them
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