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A narrow beam containing 2000 mono energetic photons is reduced to 1000 photons with a slab of copper 10-2 m thick. What is the total linear attenuation coefficient of the copper slab for these photons? If the thickness of the copper slab doubled, does it affect the total linear attenuation coefficient? Prove it quantitatively
The Earth produces an inwardly directed electric field of magnitude 150V/m near its surface. (a) If the potential of the Earth is chosen to be zero, what is the potential at infinity? (b) What is the potential of the Earth's surface relative to V=0 ..
A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a string tightly wind around the inner core. The spool is free to roll without slipping on a horizontal surface.
You have a 193 Omega resistor, a 0.400 H inductor, a 4.92 uF capacitor, and a variable-frequency ac source with an amplitude of 2.91 V. What will be the current amplitude at this frequency
An egg is thrown nearlyvertically upward froma point near the cornice of a tall building.it just misses the cornice on the way down, how high does it rise above its starting point
An ordinary glass is filled to the brim with 310.0mL of water at 100.0 ?C. how much water could be added to the glass
A quantity of a monatomic ideal gas undergoes a process in which its pressure is increased by a factor of n = 4, What is the heat absorbed by the gas during this process
Batman (mass = 101 kg) jumps straight down from a bridge into a boat (mass = 590 kg) in which a criminal is fleeing. What is the velocity of the boat after Batman lands in it
Consider a steam turbine in which the steam expands adiabatically. If the turbine consumes 1.00 kg steam each second, calculate the temperature of the steam at the exhaust
suppose 20m long steel rods are used in 20m long slabs. calculate the increase of length of a slab due to this speeding 18 wheeler on this hot day
An electromagnet is made by inserting a soft iron core into a solenoid. What is the relative permeability KB of the iron core
When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 4.90 m. how far will the water travel horizontally
A wheel that is rotating at 45 Rad/s is give an angular acceleration of 3 Rad/s (sqrd). Use gravity: 10 m/s, how long is the angular velocity of the wheel
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