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A small object with a mass of 250mg carries a charge of 40.0 nC and issuspended by a thread between the vertical plates of aparallel-plate capacitor. The plates are separated by 5.00 cm. If the thread makes an angle of16.0° with the vertical, what is the potential difference between the plates?
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A compound microscope has the objective and eyepiece mounted in a tube that is 18.0 cm long. The focal length of the eyepiece is 2.28 cm, what is the focal length of the objective
A flask is filled with 1.50 L (L = liter) of a liquid at 98.0 °C. What is the coefficient of volume expansion of the liquid
If an isolated conducting sphere 10 cm in radius has a net charge of +7.9 µC, what is the potential on the surface of the sphere
A capacitor has a surface charge density of 5 micro-coulombs/m2. What is the amount of the electrical force on the point charge
An isolated piston+ cylinder arrangement shown contains a diatomic ideal gas at 300 K at equilibrium. find the new equilibrium temperature of the gas
From the top of a 70m building, you throw a ball straight up at 6m/s. The ball misses the building on the way down. what is the maximum height of the ball
An airplane is cruising along in a horizontal level flight at a constant velocity, heading due west. If the weight of the plane is 2.6´104 N, what is the net force on the plane
In a laboratory, a wavelength of a particular hydrogen emission line (Balmer beta line) is observed as 486.1 nm. what is the stars radial velocity
Trin has been prescribed bi-focals because his near point is at 2 m instead of 25 cm and his far point is at 10 m instead of infinity. Describe what's wrong with his eyes
A lamp is suspended by a massless string from the ceiling of a descending elevator which decelerates at 1.7 m/s2. what is the mass of the lamp
The wavelength of visible light varies from 380 nm to 750nm as the color of the light changes from violet to red. Calculate the energy of a photon whose wavelength is 695nm
A uniform thin rod of length 0.9 m and mass 2.6 kg can rotate in a horizontal plane about a vertical axis through its center. find the magnitude of the bullet's velocity just before the impact
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