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Measurements of the radioactivity of a certain isotope tellyou that the decay rate decreases from 8355 to 3160 over a period of 4.50 . What is the half-life of this isotope? (Days)
A subatomic particle with mass m initially at rest suddenly decays. what is the velocity of the other particle created
A copper kettle contains water at 24.0 °C. When the water is heated to 99.0 °C, Determine the volume of the kettle
throughout the process the mechanical device pushing the piston to compress gas is found to expend 4 kJ of energy. What is the magnitude of the heat flow between heat reservoir and the gas and in what direction does the heat flow occur.
Many radioisotopes have important industrial, medical, and research applications. One of these is 60Co, which has a half-life of 5.20 years and decays by the emission of a beta particle, What is the minimum number of nuclei in the source at the tim..
Suppose a car is traveling at 13.0 m/s, and the driver sees a traffic light turn red. After 0.570 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as ..
A 32000-kg railroad freight car collides with a stationary caboose car. What is the mass of the caboose
n object of mass "m" specific heat "Cp" & surface area "As" is initially at a temperature "To". Rate of Heat gained by Object = Rate of Heat Lost by Gas m, Cp, h, A & Tg are all constants.
In the model of the hydrogen atom created by Niels Bohr, the electron moves around the proton at a speed of 2.20 106 m/s in a circle of radius 5.30 10-11 m. determine the magnetic moment associated with this motion
An ice skater slides (without pushing) across a frozen pond for 25.0 m before coming to a stop. If the coefficient of kinetic friction is 0.050, how fast was the skater initially moving
Two lamps marked 60-watts, 120 volts and 40-watts, 120 volts are connected in series across a 120-volt line. What is the power consumption in each lamp
The radius of a proton is 0.9e-15 m; suppose that if the particles touch, the distance between their centers will be twice that. What will be the total kinetic energy of both particles an instant before they touch.
Water flows over a waterfall 10 meters to a turbine. Water flows at a rate of 10kg/sec. How much power is delivered to the turbine
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