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Superman throws a 0.18 kg baseball at a speed of 0.936c. Find the following for the baseball.
1. rest energy
2. kinetic energy
In a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. Find the magnitude of the total acceleration of the ball
A supersonic jet flying at 145 m/s is accelerated uniformly atthe rate of 23.1 m/s2 for 20.0 s. How many times thespeed of sound is the planes final speed
A 0.70kg piece of lead at a temperature of 160C is dumped into 800mL of water at a temperature of 22C , How much heat flowed in this process
There are three masses m1 = 2.0 kg, m2 = 5.0 kg and m3 = 7.0 kg. The mass are all affixed to a massless rod of length 15cm. Calculate the center of mass of the system
The base of an aluminum block, which is fixed in place, measures 90 cm by 90 cm. The shear modulus of aluminum is
A double convex thin glass lens has equal radii of curvature. The focal length of the lens is +63.5 cm, find The index of refraction of the glass of the plano-convex lens
An electron in the hydrogen atom is in an excited state given by (n=4, l=3, ml=2, ms=1/2). List the possible final states the system could be in after the emission of photon. Include in the list the energies of the photon.
on the afternoon of december 5 1939 an unusually warm day in boston a 28.4-m-high28.4 -m-diameter cylindrical metal
Two passenger trains A and B, each 240 mlong, pass a 40 m long railroad platform in Winnepeg. The trains are moving in opposite directions at equal speeds of 0.500cwith respect to the ground. Train A is traveling west and alltracks are perfectly stra..
What potential is generated on a plane's wings when it flies through the earth's magnetic field
A 3.0cm × 3.0cm parallel-plate capacitor has a 2.0mm spacing. The electric field strength inside the capacitor is 1.1×105V/m
A block of mass 250 kg is pushed 2.20m along a frictionless horizontal table by a constant 16 Nforce directed 25.0 below the horizontal. estimate the work done by net force on block
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