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A dipole of moment 0.5 e·nm is placed in a uniform electric field with a magnitude of 4.0 x 104 N/C. What is the magnitude of the torque on the dipole when
(a) The dipole is parallel to the electric field,
(b) The dipole is perpendicular to the electric field, and
(c) The dipole makes an angle of 30o with the electric field?
(d) Find the potential energy of the dipole in the electric field for each case.
A ball is launched at 21.9 m/s at an angle of 25 degrees above the horizontal from the top edge of a building 55.7 m high. what is its speed when it hits the ground
In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (?196°C ) and in boiling pentane (36.1°C). The separate pressures are 0.349 atm and 1.442 atm.
an car mass 1000kg is traveling east 30m/s . it is hitby another car 2000kg whick was traveling northwest at20m/s.the two cars stick together. what is the velocity of the cars after they stick together
A 5.0-kg object is pulled along a horizontal surface at by a 15 N force acting 20? above the horizontal. How much work is done by the gravitational force
A car travelling 80 km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance the car coasts before it stops in meters.
An ideal monatomic gas expands isothermally from 0.500 m3 to 1.25 m3 at a constant temperature of 630 K, Find the thermal energy transfer Q
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
q1. a simple harmonic oscillator consists of the block of mass 1.90 kg attached to a spring of spring constant 196 nm.
Two boats start together and race across a 64-km-wide lake and back. Boat A goes across at 64 km/h and returns at 64 km/h. Boat B goes across at 32 km/h, and its crew, realizing how far behind it is getting, returns at 96 km/h. Turnaround times ar..
Two objects have masses m and 5m respectively.They both are placed side by side on a frictionless inclined plane and allowed to slide down from rest.
A 5600 kg mass car is taking a turn at 72 m/s. If the frictional force here is 44,000N, what is the radius of curvature of the turn
theres an electron in a one-dimensional potential well of width lz in the z direction withnbspinfinitely high potential
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