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how much work does an elevator motor do to lift a 1000 kg elevator a height of 100 mhow much power should the motor
an electron is released from rest in a uniform electric field the electron accelerates vertically upward traveling 450
a magnetic field is directed perpendicular to the plane of the15 m 30 m rectangular coil comprised of 120 loops of wire
a person pushes a 10 kilogram box from rest and accelerates it to a speed of 40 ms with a constant force if the box is
an overhead electric power line carries a maximum current of 125 a what is the magnitude of the maximum magnetic field
determine how much work does it take to move a charge of 16c from point c to point d where the voltage at point d is 11
decide the length of a copper wire that has a resistance of 172omega and cross-sectional area of 110-4 m2 the
a torpid having a square cross section 700 cm on a side and an inner radius of130 centimeter has 550 turns and carries
one cylinder in the diesel engine of a truck has an initial volume of 700 cm3 air is admitted to the cylinder at 35 deg
a boy pulls a 20-kg box by a 50n force at 37 degrees above a horizontal surface the coefficient of kinetic friction
an electron is shot into one end of a solenoid as it enters the uniform magnetic field within the solenoid its speed is
a beam of light with red and blue components of wavelengths 670nm a bd 425nm respectively strikes a slab of fused
a 95 kilogram scaffold is 7 meter long it is hanging with two wires one from each end a 460 kilogram box sits 16 meter
in this problem take right as positive and up as positive regular coordinate system a rocket ship has anx-acceleration
a student tells you that if he pushes horizontally on a book which is lying on a table that he will never be able to
when kicking a soccer ball a player accelerates a her lower leg at 45radianss2 for08 s if the final angular velocity wf
a proton moves by a speed of 390106 ms horizontally at a right angle to a magnetic field what magnetic field strength
a golfer swings his club of radius 12 m at an angular velocity w of 340ordms what is the linear velocity of the club
a slug bug hits a semi truck both are going the same constant speed what one has the higher acceleration what one has
a point charge q1 -400 nc is at the point 0600 meters y 0800 meters and a second point charge q2 600 nc is at the
the electric starter in an automobile equipped with a 12 v battery draws a current of 8000 a when in operation assume
old faithful geyser in yellowstone park erupts at approximately 1 hr intervals and the height of the fountain reaches
a bat hits a moving baseball if the bat delivers a net eastward impulse of 14 n-s and the ball starts with an initial
a bucket with a mass of 30 kilogram is suspended by a rope that is wrapped around a cylinder the cylinder has a mass of
a projectile is launched horizontally to the left at 500ms off of a cliff that is 800 meters tall ignore air friction