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An air-filled parallel plate capacitor with a plate spacing of 1.20 cm has a capacitance of 4.20 uF. The plate spacing is now doubled and a dielectric is inserted, completely filling the space between the plates. As a result the capacitance becomes 17.2 uF. Calculate the dielectric constant of the inserted material.
A 15 kg cannon ball is firedfrom a cannon with muzzle speed of 867 m/s at an angle of51.3? withthe horizontal. The acceleration of gravity is9.8m/s2 . Use conservation of mechanical energy to findthe maximum height reached by first ball.
The mass of a robot is 6210 kg. This robot weighs 3970 N more on planet A than it does on planet B. What is the difference MA - MB in the masses of these planets
A block of mass 445 g is attachedto one end of a cord of mass 3.10 g;the other end of the cord is attached to a fixed point. Through what angle does the block rotate
Find the speed an alpha particle requires to come within 2.6 × 10^?14 m of a gold nucleus. Coulomb's constant is 8.99 × 10^9 N · m2/C2
A meat baster consists of a squeeze bulb attached to a plastic tube. While the bulb is squeezed and free, with the open end of the tube under the surface of the basting sauce.
a water molecule consists of an oxygen atom with two hydrogen atoms bound to it . the angle between the two bonds is
Estimate how many books can be shelved in a college library with 3400 of floor space. Assume 5 shelves high, having books on both sides
A 550 -cm flask contains 0.450grams of a gas at a pressure of 140kPa, What is the molecular mass of this gas
A stream of water strikes a stationary turbine blade horizontally,as the drawing illustrates. The incident water stream has avelocity of +18.0 m/s, while the exiting water stream has avelocity of -18.0 m/s.
Two infinite, parallel, uniformly charged plates with charge densities +sigma and +3sigma are separated by a distance L, what is the potential of the plate on the left
You and a friend have been given the task of designing a display for the Physics building that will demonstrate the strength of the electric force, calculate the necessary amount of charge on the marble for a reasonable ramp angle of 15 degrees
A 1200-turn coil of wire that is 2.1 cm in diameter is in a magnetic field that drops from 0.14 T to 0 T in 12 ms. What is the emf of the coil
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