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An electric dipole consisting of charges of magnitude 2.90 nCseparated by 7.30 μm is in an electric field of strength 1400N/C. What are (a) the magnitude of the electricdipole moment and (b) the difference between thepotential energies for dipole orientations parallel andantiparallel to ?
A 1.25 m long FM antenna is oriented parallel to the electric field of an EM wave. The eletric field produced from 1.46 mV between the ends of the antenna must be 9.12×10^-4 V/m. What is the rate of energy transport per square meter?
A young hockey player stands at rest on the ice holding a 1.3-kg helmet. The player tosses the helmet with a speed of 4.6 m/s in a direction 9° above the horizontal, and recoils with a speed of 0.22 m/s. Find the mass of the hockey player.
A 91 g arrow is fired from a bow whose string exerts an average force of 115 N on the arrow over a distance of 78 cm. Illustrate what is the speed of the arrow as it leaves the bow?
A ray of light is incident oa an angle of 60 degree on once face of a rectangular glass slab of thickness 0.1m and refractive index 1.5. Calculate the lateral shift produced
a balloon filled with one liter of air is tied to a brick and dropped from a height of 4600m above sea level. what will be the volume of the baloon when it reaches sea level
In two attempts, a javelin is thrown at angles of 35° and 60° respectively, to the horizontal from the same height and at the same speed in each case. How many times farther
A ball is thrown so that its initial vertical and horizontal components of velocity are 50 m/s and 15 m/s, Estimate the maximum height the ball reaches
A particle with a mass of 6.64*10^-27kg and a charge of 3.20*10^-19Cis accelerated from rest through a potential difference of 2.45*10^6V. calculate the radius of the path inside the magnetic field
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 304 K, What is the coefficient of performance of this refrigerator
A circuit consists of a resistor in series with an inductor and an ac generator that supplies a voltage of 115 V. Find the average power delivered in the circuit
You have a spring and you measure its natural length to be 10.0 cm. When you hang the massless spring from the ceiling and attach a 4kg mass to it, What is the period of this motion in seconds
The interior temperature is kept at 5°C, while the temperature at the outside surface is 25°C. Explain by how much heat per second is being removed from the unit?
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