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eratosthenes measured the circumference of the earth by noting that the sun is at an angle of 6adeg south of the
1 an electron is moved through a region with an electric potential defined by the equipotential lines shown position is
power dissipated in the upper branch r 3q of the circuit shown is twice the power dissipated in the 20- omega resistor
a 5 kg cannonball is launched at an angle of 40o from a 120 m tall hill it is pneumatically launched from rest to a
a 567 x108 asteroid comes within 8rearth earth is supposed to be written as a subscript of 8r of the surface of earth
a velocity selector is a device used to obtain a beam of charged particles ions moving in a straight line path all with
1 an electron of a hydrogen atom in an excited state makes a transition from the n 5 level to the n 2 levela does the
1-a does an electrically neutral particle that has mass interact with an electric field b does a charged particle
the voice coil in your stereo speakers woofer has 950 tight circular turns in the plane a diameter of 54 cm and a coil
the magnetic flux through a 28 ohm loop varies with time according to phit 4t2 120 e-03t where phi is measured in
2d kinematics projectile motion -a boy shoots a football from the top of a hill with velocity v0 the ball flies off the
the weight in the figure below hangs from a long board of negligible weight let theta 630o and w 480 nfind the
three ropes pull on a knot shown in figure 1 the knot is not accelerating a partially completed force diagram for the
1 draw a forcenbspf write down the components of the forcenbspfnbspin terms of the angle thatnbspfnbspmakes with a
1 determine the distance y to the centroid for the shaded area measured from the x axis if a is 27 in be sure to
1 a constant force of 500 n acts over a distance of 01 m on a 015 kg hockey puck that was originally at resta what is
power from a tether a few years ago the space shuttle columbia tried an experiment with a tethered satellite the
1 you have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that of the earth 50 x
1 graph pressure vs volume for both the isothermal compression slow compression and the adiabatic compression fast
a 110 cm -long solenoid of diameter 0410 cm is wound uniformly with 850 turns a second coil with 52 turns is wound
two 10-cm-diameter charged rings face each other 29 cm apart the left ring is charged to -27 nc and the right ring is
1 create a force diagram of a car as it moves along a track2 create a force diagram of mass hanger as it moves towards
1 what is a continuous spectrum what is a discrete spectrum2 what kind of light sources produce each type of spectrum3
the unit weights measured in this lab are on a stock basis it is often necessary to know the unit weight on an od or
1 what is the direction of the electric field in a dielectric medium just outside the surface of a charged conducting