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exercise 1 relating countermeasure strategiesdiscuss the 10 generic countermeasure strategies proposed by haddon as
a uniform beam of length 10 m and mass 100 kg is supported by pylons on either end a 200 kg box is centered at 5 m from
what is the difference between natural and made made rocks which work better in the long run and give an example of a
a 183-kg bucket is tied to a rope of negligible mass the rope is wrapped around a pole that is mounted horizontally on
an lp turntable must spin at 3520 rads to play a record how much torque must the motor deliver if the turntable is to
using the formula for kinetic energy of a moving particle k12 mv2 find the kinetic energy ka of particle ausing the
three long wires all lie in an xy plane parallel to the x-axis they are spaced equally 10 cm apart the two outer wires
why does a baseball catchers mitt have more padding than a conventional gloveif you place a box on an inclined plane it
a painter mass 67 kg is walking along a trestle consisting of a uniform plank mass 190 kg length 6660 m balanced on two
a conducting rod with a square cross section 3 cm x 3 cm carries a current of 60 a that is uniformly distributed cross
the lowest note on a violin string makes a 196 hz g below middle c note if this is the fundamental frequency for the
a student wishes to design a flashlight that will work without batteries the student plans to use electromagnetic
a magnetic field is oriented at an angel of 40 degrees to the normal of a rectangular area 65cm by 61 cm if the
suppose you have 10 helium-filled party balloons tied to a digital camera so you can take photos of the core of a storm
two transistors one with a beta of 25 and one with a beta of 40 connected to make a darlington pair calculate the
a ce amplifier has rc 64kohms rl 53kohms the collector voltage is 13v the emitter voltage is 35v the supply voltage 25v
a ce transistor amplifier is built using a voltage divider resistors r130kohm and r210kohmthe input resistance to the
a man wishes to pull a crate 15m across a rough floor by exerting a force of 100 n the coefficient of kinetic friction
a person shufing across a dry carpet can be approximately modeled as a charged 100-pf capacitance with one end grounded
the lenses used in a compound microscope have powers of110 d and60 d if a total magnification of -150 times is desired
thoria tho2 is an important nuclear material predict its likely crystal structure given that the ionic radii for
copper cu metal has a fcc crystal structure and an atomic weight of 635 gmol using the expression determined in
1 a convex lens produces a real inverted image of an object that is magnified 30 times when the object is 28 cm from
the magnetic field at the center of a 14-cm-diameter loop is 23 mta what is the current in the loopb a long straight
1 define air pressure2 define an adiabatic process3 identify the advantages of an aneroid barometer over a mercury