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A parallel-plate capacitor in air has a plate separation of 1.50 cmand a plate area of 25.0cm2. The plates arecharged to a potential difference of 2.50x102 V anddisconnected from the source. The capacitor is then immersedin distilled water. Determine (a) the charge on the plates before and after immersion, (b) the capacitance and potential difference after immersion, and (c) the change in energy stored in the capacitor due to immersion. Assume the distilled water is an insulator.
Create your own 2D kinematics problem and present a detailed solution that includes a sketch. the problem must begin and conclude at different heights, find the maximum height and total time in the air
Two identical spheres are placed with centers 0.25 m apart, one is given a charge 20nC and the other-36nC, what will be the electric force each exerts on the other
A K+ ion and a Cl ion are directly across from each other on opposite sides of a membrane 8.9 nm thick. What is the electric force on the K+ ion due to the Cl ion? Ignore the presence of other charges. What direction will it go in relation to the ..
Water is moving at a speed of 7.55 m/s through a fire hose with an internal diameter of 5.99 cm. What is the diameter of the nozzle
A factory worker pushes a 31.0 kgcrate a distance of 6.5 m along alevel floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is0.25.
A steel safe with mass 2200 kg falls onto concrete. Just before hitting the concrete its speed is 40 m/s, and it smashes without rebounding and ends up being 0.06 m shorter than before. What is an approximate magnitude of the force exerted on the ..
The mass m =1 kg is set up as a pendulum of length 0.6m as shown on the diagram. Initially in the position of h = 0.2m above the lowest point, and the pendulum is given initial speed of 1m/s. What is the largest mass M that might be temporarily lifte..
A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the crossing receives a frequency of 208 Hz. What is the speed of the train
An engine takes in 8000 cal of heat and exhausts 4000 cal of heat each minute it is running. How much work does the engine perform each minute
A uniform, cylindrical pulley of mass M=12.7 kg and radius R=0.636 m rotates freely about a fixed horizontal axis. What is the magnitude of the angular acceleration of the pulley
By what factor will the rms speed of gas molecules increase if the temperature is increased from 40 ?C to 150 ?C
A certain camera has f-numbers that range from 1.1 to 28. If the focal length of the lens is 40 mm, what is the range of aperture diameters for the camera
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