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Consider the nuclear reaction:
(2/1)H + (9/4)Be --> (7/3)Li + (4/2) He.
(A) How much energy is liberated? (answer in units MeV)
(B) What is the threshold energy for this reaction? (answer in units MeV)
The pressure in a section of horizontal pipe with a diameter of 2.0 cm is 146 kPa. Water flows through the pipe at 2.80 L/s. what should the diameter of the constricted section be
A car is traveling along a straight road at a velocity of +31.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
A 17g rifle bullet travelling 220 m/s buries itself in a 3.90 kg pendulum hanging on a 3m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of the pendulum's displacement.
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
A mass of 0.5 kg is suspended from a spring, which stretches by 8 cm. At what frequehcy would you expect resonant behavior
A) How fast should the car be traveling just as it leaves the cliff in order to just clear the river and land safely on the opposite side? B) What is the speed of the car just before it lands safely on the other side?
A football is projected on a flat surface at a 32° angle. If the ball lands 45m from where it started, what is the football's initial velocity
An electron is confined to a box the size of a small atom, 0.12nm across. ?p, What wavelength photon would have the same energy
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of rotation of the wheel (in revolutions per minute) that will produce this effect.
A very long wire is held under tension by suspending weights from an end that passes over a pulley. What is the speed of the traveling speed
How much greater is an angular momentum of the Earth orbiting about the sun than the moon orbiting about the Earth? (Set up a ratio of angular momenta using data on inside back cover. The period of the moon is about 27.3 days.)
a radio wave, sent from mars to the earthwhen the two are closest to eachother, takes 3.03 minutes. calculate the distance between perihelion and aphelion for mars
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