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Consider a capacitor created when two identical conducting plates are placed parallel and close to each in other in vacuum. The surface area for each plate is 0.0400 m2. The two plates are separated by a distance of 0.00200 m. When an electric potential difference of 50.0 V is established between the two plates, what is the magnitude of the electrostatic force between the charged plates? Is the force attractive or repulsive?
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
Two cars are traveling along a straight road. Car A maintains a constant velocity of 110 km/h and car B maintains a constant speed of 110 km/h. At t= 0, car B is 45 km behind car A. How far would car A travel from t = 0, before it is overtaken by c..
What is the difference in blood pressure ({rm mm-Hg}) between the top of the head and bottom of the feet of a 1.80-{rm m}-tall person standing vertically.
The height of a door is measured by four people and their measured values are 217.0 cm, 217.9 cm, 217.3 cm, and 217.6 cm, What is the standard deviation for the four measurements
Discover the magnitude of acceleration
A car is traveling 17 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 7.5 m/s2. How far does the car go before it stops.
A toy train with 1.2kg mass is moving at a stright line platform with the velocity 12m/s. It collides another toy train of 0.9kg mass with velocity of 7m/s. If e = 0.8, what is the velocity of each train after the collision.
A stone is thrown directly upward at 15.0 from ground level and feels no appreciable air resistance. make Use of the work-energy theorem to find how high it will be when its speed has been reduced to half of its initial value.
Modeling the optical trap as a Hookean spring, evaluate the trap stiffness using the Boltzmann distribution. Determine the sphere diameter by comparing the Stokes drag and the tweezer force that balances the drag.
Coefficient of kinetic friction between tires and road
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 680m to be the other plate. Assume the surface area of the cloud to be the same as the area of a square that ..
compute the force exerted by the man, the work done by the man on the piano, the work done by the friction force, the work done by the force of gravity, and the net work done on the piano.
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