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It is fairly easy to strip the two electrons off a helium atom, leaving a bare nucleus of two neutrons and two protons. The so-called alpha particle is to be accelerated, essentially from rest, up to a KE of 1200 keV by having it "fall" through a potential difference. What is the necessary voltage difference?
A 50 ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.50 turns each second. The distance from one hand to the other is 1.5 . Biometric measurements indicate that each hand typically creates ..
A point charge of +5.34 ?C is located at the center of a sphere with a radius of 12.6 cm. Determine the electric flux through the surface of the sphere.
What is the maximum speed with which a 1200 kg car can round a turn of radius 60.0m on a flat road if the coefficient of friction between tires and road is 0.65.
A transformer has 350 primary turns and 1290 secondary turns. The input voltage is 120?V and the output current is 15.5A . Assume100% efficiency, What is the output voltage
A man exerts a 328 N force to move a box across a 3.55-m patch of ice. How much work does he do on the box.
A 1.00uF capacitor is connected in parallel with a 2.00uF capacitor, Find the potential on the negative plate of the 1.00uF caacitor and the equivalent capacitance of the two capacitors
A blower releases a ball down the lane with a linear velocity at release of 12 meters per second. what was the angular acceleration of the arm to the release point
A novice skier, starting from rest, slides down a frictionless 41.0 incline whose vertical height is 230.How fast is she going when she reaches the bottom.
Suppose the uranium nucleus was at rest just before the decay. If the α particle is emitted at a speed of 1.74×107 m/s, illustrate what would be the recoil speed of the thorium nucleus?
Two parallel plates are charged to a voltage of 50V. If the separation between the plates is 0.05m, what is the electric field between them?
what is the needed magnitude of the minimum acceleration.
High-speed photos of a 200?g flea jumping vertically show that the jump lasts 1.5ms and involves an average vertical acceleration of 110 g, What's the change in the flea's momentum during its jump
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