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two strong magnets on opposite sides of a small table are shownthe long-range attractive force between the magnets
a small block with mass m1 rests on a frictionless horizontal tabletop a distance r from a hole in the center of the
you are designing a centrifuge to spin at a rate of 15850 revmina calculate the maximum centripetal acceleration that a
a parallel-plate capacitor has an area of 600 cm2 and the plates are separatedby 200 mm with air between them the
one cylinder in the diesel engine of a truck has an initialvolume of 600 cm3 air is admitted to the cylinder at 30degc
the drawing shows four insulated wires overlapping one anotherforming a square with 0050-m sides all four wires are
a horizontal wire is hung from the ceiling of a room by twomassless strings the wire has a length of 014m and a mass of
a 256hz sound wave in 20degc air propagates into the water of a swimming pool what are the water-to-air ratios of the
how long must a 060-mm-diameter copper wire be to carrya 050 rm a current when connectedto the terminals of a 15 rm v
a centrifuge is a device in which a small container of material is rotated at high speed on a circular path such a
the driver of a car going at 68milesh suddenly sees a truckahead at 60 m moving slowly at 23 milesh in the
a spacecraft is on a journey to the moon at what point asmeasured from the center of the earth does the gravitational
what is the net force of a 20 n force and an 60 n forceacting on an object for each of the following conditionsa the
a person drives a car around a circular cloverleaf with aradius of 59 m at a uniform speed of 10 msa what is the
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a stream-powered catapult the
a circular loop of wire with 10 turns radius 125 cm and resistance 15 ohms is connected to a 12 v power supply the
how much work must be done to move a 38 kg chair 61 m acrossthe floor at constant velocity if the coefficient of
a freezer is used to freeze 30 lof water completely into ice the water and the freezer remain at aconstant temperature
a turntable that turns 10 revolutions each second is locatedon top of a mountain mounted on the turntable is a laser
the spectral lines of various elements are detected from agalaxy in constellation ursa major an ultra violet line
a 12 mhz ultrasonic beam is used to scan body tissue if the speed of sound in a certain tissue is 1540 ms and the
a 7 kg bowling ball strikes a 2 kg pin the pin flies forwardwith a velocity of 6 ms the ball continues forward at 4 ms
a large hot pizza 84 cm indiameter and 20 cm thick with a temperature of 92degc floats in outer space assume
water is flowing through a channel that is 12m wide with a speedof 075ms the water then flows into four identical
large meteorites are hardly slowed by earths atmosphere assuming the atmosphere is 100 km thick ans that a large