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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?
An Atwood system which has two masses, m1 = 2 kg and m2 = 2.1 kg. What is the net force on this system
When a-particles with energy of 5MeV are scattered on a thin gold foil, it is found that 10,000 a-particles are scattered at an angle greater than 50o, How many will be scattered between 70o and 80o
A baseball is hit with a speed of 30ms-1 at an angle of 40degrees. It land`s on the flat roof of a nearby building with a height of 14 m. If the ball was hit when it was 1.40 m above the ground, what horizontal distance does it travel before it la..
What is the Professors initial velocity. He is pushed a distance 3.00 m along the incline by a group of students who together exert a constant horizontal force of 595 N. The professor's speed at the bottom of ramp is 1.70 m/s.
A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, How far away is the planet according to observers on earth
In an X-ray tube electrons strike a tungsten target (W or "wolfram") after being accelerated through a potential difference V0. Estimate the minimum value of V0 required to observe the Kalpha peak.
michael hits a 45.9 g golf ball traveling 56.0 m/s at an angle 60 degree north of east and splits into three pieces. what is the velocity of the third piece
While a roofer is working on a roof that slants at 43.0 above the horizontal, If it starts 4.60m from the lower edge of the roof, how fast will the toolbox be moving
A 3.06 kg block slides down a frictionless plane inclined 18.6' to the horizontal. If length of the plane's surface is 1.43 m, how much work is done, and by what force.
A state highway patrol car radar unit uses a frequency of 9 x 10^9. what frequency difference will the unit detect from a car receding at a speed of 46.5 m/s from stationary patrol car.
In a He+ ion, the electron is in 3S state Assume that units can be chosen that a = 4 ? ?0 h2 / (M e2) = 1, write down the corresponding wavefunction
What mass (in grams) of steam at 100 °C must be mixed with 287g of ice at its melting point, in a thermally insulated container, to produce liquid water at 65°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, an..
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