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A radioisotope has a half-life of 5.00 min and an initial decay rate of 5500 Bq .
Part A. What is the decay constant?
Part B. What will be the decay rate at the end of 5.00 min.
Part C. What will be the decay rate at the end of 10.0 min.
Part D. What will be the decay rate at the end of 25.0 min.
What are the magnitudes of the (a) impulse and (b) average force on the passenger during the collision? If the passenger were to jump upward with a speed of 6.00 m/s relative to the cab floor just before the cab hits the bottom of the shaft, what ..
A projectile is launched with an initial speed of 45.0 m/s at an angle of 40 degrees above the horizontal. The projectile lands on a hillside 3.20 seconds later. What is the projectile's velocity at the highest point of it trajectory
The total electric flux from a cubical box 25.0 cm on a side is 1.34 103 N·m2/C. What charge is enclosed by the box
Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. How much torque does the flywheel exert on the machine
A patient recovering from surgery has been given fluid intravenously. Find what is the mass flow rate
The current supplied by a battery slowly decreases as the battery runs down. Find the total charge leaving the battery from the time the battery is first used until it is completely dead
An electron ( mass = 9.11×10?31 ) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, which is 1.79 away. It reaches the grid with a speed of 2.96×106 . (You can ignore the gravitati..
problem 1two horses pull horizontally on ropes attached to a stump. the two forces texttipvec f1f1vec 1230rm n and
Calculate the conduction rate of heat H=deltaQ/deltaT through an A=2.0 m^2 glass window of the thickness of the glass is 4 mm and the temperature difference between the inside and the outside is 20 degree celsisus
Consider the RC-circuit with R = 3 k%u03A9, C = 100 %u03BCF, and E = 12 V and a switch. At t = 0 the capacitor is empty and the switch is closed to the charging begins. Calculate the time constant of the circuit
The coefficient of kinetic friction between the 2.00KG and the 3.00KG blocks in 0.300. The horizontal surface and the pulleyes are frictionless, determine the acceleration of each block
Bill and Julie are both now on identical trains. Bill's train is moving to the right with velocity (/2)c with respect to Julie's train. How long does Bill measure Julie's train to be
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