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An 9 kilogram package in a mail-sorting room slides 2.50 meter down a chute that is inclined at 54.4 degree below the horizontal. The coefficient of kinetic friction between the package and the chute's surface is 0.42. Determine the work done on the package by friction.
Determine the work done on the package by gravity.
Determine the net work done on the package.
During the power stroke in a four-stroke automobile engine, the piston is forced down as the mixture of combustion products and air undergoes an adiabatic expansion. Evaluate the average power generated during the expansion
Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm, what is the resulting displacement above equilibrium
A cement block accidienatlly falls from rest from the ledge of a 63.7 -m-high building when the block is 18.2m above the ground a man 2.00m tall looks up notices that the block is directly above him
the refractive index of a transparent material can be determined by measuring the critical angle when the solid is in
A 212-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. evaluate the tension in the rope
A horizontal desk surface measures 2.52 m x 2.05 m. If Earth's magnetic field has magnitude 0.463 mT, what is the magnetic flux through the desk surface
A 3.7 kg block of copper at a temperature of 86°C is dropped into a bucket containing a mixture of ice and water whose total mass is 1.2 kg. How much ice was in the bucket before the copper block was placed in it
A 0.7 kW heater is designed to operate at 210 V. Assume that its resistance is constant. What is the power dissipated in this resistor if it operates at 120 V
A rocket launched from the ground, rises vertically by acceleration of 30m/s^2 for 1.0s when it runs out of fuel. Disregarding air resistance, how high will the rocket rise?
Consider a circuit with a main wire that branches into twoother wires. If the current is 10 amperes in the main wire and 4amperes in one of the branches, how much current is in the other branch
a positron q e moves at 4.82 x 107 ms in a magnetic field of magnitude 0.405 t. the magnetic force on the positron has
According to Newton's third law, all forces occur in pairs. Find the reaction force to the Sun gravity on Pluto
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