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An electric dipole consists of charges +2e and -2e separated by 0.77 nm. It is in an electric field of strength 4.20 106 N/C. Calculate the magnitude of the torque on the dipole when the dipole moment has the following orientations. (a) parallel to the field N·m (b) perpendicular to the field N·m (c) antiparallel to the field N·m
question the light intensity incident on a metallic sur- face with a work function of 2.03 ev produces photoeletrons
The invaders’ thermometer shows the temperature on earth to be 58 °I. Using logic similar to that in Example 1 in the text, illustrate what would this temperature be on the Celsius scale?
a 25g bullet pierces a sand bag 27cm thick. if the initial bullet velocity was 64 ms and it emerged from the sandbag
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. What is the initial energy stored in the inductor
Does the equation of motion V^2-U^2=2as come from the equation Vf^2=Vi^2-2gΔy ? if so where is the minus that isleft once you move Vi^2 to the right?
You keep your coffee in a sealable thermal mug which has thermal conductivity k-0.036 W/m k. how long (in minutes) will it take the coffee to cool down
A jewel smith wishing to buff a finished piece of jewelry attaches a buffing disk to his drill. Determine the tangential speed of the rim of the disk
A playground merry go round of a diameter 6m and mass 240 kg is rotating at 12 rev/min about a frctionless vertical axle. Facing the axle, a 30kg child hops on to the merry go round and manages to sit down on its ledge. What is the new angular spe..
A human can be electrocuted if a current of 0.053 A passes near the heart. If a human is considered to be a resistor in a circuit with a resistance of 2039 ?,
A 0.600 kg block is attached to a spring with spring constant 18 N/m. While the block is sitting at rest, What is the amplitude of the subsequent oscillations
Find out the maximum height reached by the rocket.
A projectile is fired at such an angle from the horizontal that vertical component of its velocity is 49 m/s. The horizontal component of its velocity is 61 m/s.
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