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A sample 114 nd has a mass of 0.055395 kg and emits an average of 2.36 alpha particles per second. Determine the decay constant and the half-life.
The electron's brother is the neutrino which has no mass and no charge, Given that the electron's mass in energy units is 0.511 MeV, calculate its classical radius r0.
A sound wave travels in air toward the surface of a freshwater lake and enters into the water. What is the wavelength in the water
Rahm was coasting on interstate highway I-35 from Wichita to Kansas City at 65 mph. How far from the accident does he come to a stop
An aluminum cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 490 g sample of silver at an initial temperature of 90°C is placed in the water. Calculate the mass of the aluminum cup
Heather and Jerry are standing on a bridge 51 above a river. Heather throws a rock straight down with a speed of 12. Jerry, at accurately the same instant of time, throws a rock straight up with the same speed. Ignore air resistance.
What is the greatest angle of elevation
A rocket blasts off from a platform on a space station. An identical rocket blast off from free space. Considering that everything else is equal, will the two rockets have the same acceleration? define.
A continuous line of charge lies along an x axis, extending from x = +x0 to positive infinity. The line carries charge with the uniform linear charge density λ0. What are the magnitude and direction of the electric field at the origin.
Illustrate what is the maximum height of each ball after the elastic collision? What are the coordinates of the CM of the two balls when the lighter ball was pulled up? Consider the heavier ball to be at the origin before the collision.
In an RLC circuit, the following three elements are connected in series: a resistor of 31.0 ohm, a 22.2-mH inductor, and a 0.390-µF capacitor. Find the power factor for the RLC series circuit
A point charge q1=5microC and is fixed in place. From a horizontal distance of 6cm a small sphere of mass 0.004 kg and charge q2=2microC is fired towards the fixed charge at 40 m/s. What is the acceleration of the sphere when it is traveling 25 m/..
Two loudspeakers face each other, vibrate in phase and produce identical 416 Hz tones. A listener walks from one speaker toward the other at the constant speed and hears the loudness change.
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