Answer:
Explanation:
Energy of gamma rays due to ore decay is
Energy of gamma ray produced in seconds is
Activity
Total energy of gamma ray produced in second is
E-energy of gamma ray produced in an hour is
Gamma ray energy absorbed by meat = 30% (in 1 hour) of E is 0.3E
Dose required to kill pathogen = 4000Gy=4000J/kg
The kilogram of meat that can be produced per hour is
The meat that can be produced =
Answer:
D) θ₂= 36. 6º
Explanation:
In this diffraction experiment it is described by the equation
sin θ = m λ
The first dark strip occurs for m = 1 and since the angle is generally small we can approximate sine to the value of the angle
θ₁ = λ/ a
This equation is valid for linear slits, in the case of a circular slit the problem must be solved in polar coordinates, so the equation changes slightly
θ₂ = 1.22 λ / a
In the proposed exercise we start with a linear slit of width a, where tes1 = 30º and end with a circular slit of the same diameter
θ₂ = 1.22 λ / a
Let's clear (Lam/a) of equalizing the two equations
θ₁ = θ₂/ 1.22
θ₂ = 1.22 θ₁
θ₂ = 1.22 30
θ₂= 36. 6º
When reviewing the correct results is D
Answer:
The magnitude and direction of the earth's magnetic field is between the range of 0.25 to 0.65 Gauss considering the angle of the earth's north pole is eleven degrees.
Explanation:
The magnetic field or force of the earth is attributed to a dynamo effect but the electric charges are not constant. The origin of the field is believed to be from the molten metallic core and the earth's rotation.
The Force of the magnetic field is a function of the velocity or speed 'v' of the electric charges 'q' and the field itself 'B' at an angle of sin∅. That is,
F = vqBsin∅
200 N, that is if the force is balanced and the wall doesn't move
Answer:
Answer: 18.3 km/s
Explanation:
If a satellite in Molniya orbit has an apogee at 48.000 km as measured from the center of Earth, and a velocity of 3.7 km/s. Its velocity in at perigee would be 18.3 km/s.
