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Ammonia The ammonia molecule NH3 has apermanent electric dipole moment equal to 1.47 D, where 1 D = 1debye unit = 3.34 multiplied by 10-30 C·m. Calculate the electric potential due to an ammonia molecule at a point56.0 nm away along the axis of the dipole. (Set V = 0 at infinity.)
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 51.8° and 43.2°, respectively
A net force of 19 newtons is applied horizontally to a 10. kilogram block resting on a table. What is the magnitude of the acceleration of the block
The velocity of a ball changes from ‹ 9, ?7, 0 › m/s to ‹ 8.96, ?7.14, 0 › m/s in 0.02 s, What is the rate of change of momentum of the ball
A parallel-plate capacitor is made of two flat metalplates pressed against a thin slab of dielectric material. Thecapacitor is connected to a power supply, and a potentialdifference of 90 V is applied to the plates.
A girl and her bicycle have a total mass of 40 kg. At the top of the hill her speed is 5.0 m/s. what is her speed at the bottom
Two blocks A and B of mass D and E respectively are kept in contact on a frictionless table. what is the force exerted by the expirimenter on A
An experimental bicycle wheel is placed on a test stand so that it is free to turn on its axle. If a constant net torque of 6.00 N · m is applied to the tire for 5.00 s, the angular speed of the tire increases from 0 to 100 rev/min. The external t..
A film of oil with refractive index 1.45 floats on water with refractive index of 1.33. Determine the thickness of the oil film
A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving. I..
Suppose you need to image the structure of a virus with a diameter of 50 nm, For light of wavelength 2.5nm, what is the energy (in eV) of a single photon? In what part of the electromagnetic spectrum is this
An ideal gas is compressed from a volume of 400 cm^3 to a volume of 150 cm^3 slowly and isothermally in a piston-cylinder system. If the final pressure is 100 kPa, determine a) the work done on the gas and b) the heat transfer (specify whether the..
A string is stretched between fixed supports separated by 75.0 cm. It is observed to have resonant frequencies of 288.0 and 384.0 Hz, What is the lowest resonant frequency for this string
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