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a 57 kg researcher absorbs 6.3*10^8 neutrons in a workday. The energy of the neutrons is 2.6 MeV. The relative biological efficiency (RBE) for fast neutrons is 10. What is the equivalent dosage of the radiation exposure, in mrem of this worker? Please show work.
On a hot day, the temperature of a road surface may rise to over 50 degrees C. calculate the net radiation flux from the road to the air
A boy whirls a stone using an r-m long string in a horizontal circle h m above the ground. The string broke, and the stone flies off horizontally and strike the ground x m away.The velocity with which the stone flies off the circle is? The centrip..
Suppose the current suddenly increases to 1.55 A in the same direction as before, due to an increase in speed of the bar. Find the emf induced in the rod
An x-ray photon of 0.12 nm strikes a metal and undergoes Compton scattering of the electrons in the metal. What is the momentum of the incident photon
A discus thrower changes his angular velocity from 280°/s to 400°/s (at the time of release) in 1.5 sec. find the average angular and linear acceleration
A solid, frictionless cylindrical pulley with a mass of 3kg and a 0.420 m radius is used to draw water from a well. A 1.50kg bucket is attached to a cord that is wrapped around the pulley. If the bucket starts from rest at the top of the well and ..
An electron traveling horizontally with velocity 1.55 x10^{5} m/s enters a region where a uniform magnetic field is directed into the plane of the paper, find the magnitude of the magnetic force exerted on the particle
A car is traveling at a constant speed of 38.8m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has constant acceleration. What acceleration must it..
One liter of water is 41C is used to make iced tea. How much ice at 0 C must be added to lower the temperature of the tea to 17C? The specific heat of water is 1 cal/g C and latent heat of ice is 79.7 cal/g. Reply in units of g.
Monochromatic light (640 nm) strikes a pair of slits at normal incidence, forming the double-slit interference pattern on a screen located 1.82m from the slits. It shows the interference pattern observed on the screen. What is the slit separation.
A parallel plate capacitor is connected to a battery. The space between the plates is filled with air. Find the electric field inside the dielectric
What is the normal force that the incline exerts on the block. find the acceleration of the block.
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