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1. In a particel accelerator, protons are fired at a stationary target and collide elastically with the nuclei of the atoms in the target. In one such experiment, a beam of protons is fired with a speed of 2.10 x 10^7 m/s. the protons that undergo a collision rebound with a speed of 1.68 x 10^7 m/s. what is the mass of the nuclei that the protons are colliding against?
2. A ping-pong ball originally at rest is hit head-on by a bowling ball moving with initial speed vo. It is given that the mass of the ping-pong ball is as good as negligible in comparison with the mass of the bowling ball. What is the speed of the ping pong ball after this elastic collision?
A 13.0-kg object undergoes an acceleration of 1.5 m/s^2. What is the magnitude of the resultant force acting on it
a 0.43 t magnetic field is perpendicular to a circular loop of wire with 56 turns and a radius of 16cm .if the magnetic
A tight guitar string has a frequency of 540Hz as its third harmonic. What will be its fundamental frequency if it is fingered at a length of only 56% of its original length?
an object at rest explodes into three pieces of equal mass. one moves east at 20.0 ms while a second moves northwest at
Consider the record throws for the javelin, men 98.48 m (Zelezny, 1996, 0.800 kg) and women 72.28 m (Spotakova, 2008, 0.600 kg); discus, men 74.08 m (Schult, 1986, 2.00 kg) and women 76.80 m (Rensch, 1989, 1.00 kg); and shotput, men 23.12 m (Barne..
A Pilot ejects from a jet raveling horizontally at 361 m/s. The combined mass of the pilot and their ejection seat is 200 kg. Whats the drag force exerted on the pilot
A truck moving with a speed of 25.4 m/s strikes a parked car. During the collision the truck and car stick together and slide to a stop together. How far does the truck/car combination slide
A 70-kg log falls from a height of 25 m into a lake. If thelog, the lake, and the air are all at 300K, find the change inentropy of the Universe for this process
When you take your 1400-{\rm kg} car out for a spin, you go around a corner of radius 52 m with a speed of 11 m/s. what is the force exerted on it by static friction
A 2.5-kg cart is rolling along a frictionless, horizontaltrack towards a 1.5-kg cart that is held initially at rest. Thecarts are loaded with strong magnets that cause them to attract oneanother. Thus, the speed of each cart increases.
to combat wasteful habits we often speak of "conserving engery", by which we mean turning off lights, find the difference in energy conservation and conserving energy
an apple weighs 1.01n . when you hang it from the end of a long spring of force constant 1.41nm and negligible mass it
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