Which factors affect the gravitational force between objects? Check all that apply. difference in speed of objects direction of
2 answers:
distance between objects
masses of the objects
Explanation:
The magnitude of the gravitational force between two objects is given by
where
G is the gravitational constant
m1 and m2 are the masses of the two objects
r is the distance between the two objects
By looking at the formula, we see that the gravitational force is affected only by two quantities:
- the masses of the objects, m1 and m2
- the distance between the objects, r
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Answer:
effective dose is 1.2 mrem
Explanation:
given data
mass m = 70 kg
absorb n = 4.5 ×
energy = 1.2 MeV
neutrons = 10
to find out
equivalent dosage
solution
we know here total energy in a day is
total energy = 4.5 × × 1.2
total energy = 5.4 × eV
and total energy = 5.4 × × 1.6 ×
so total energy = 8.64 × J
and for mass 70 kg
it will be = 8.64 × / 70
= 1.23 × rad
so
effective dose is here = 1.23 × × 10 = 0.0012 rem
so effective dose is 1.2 mrem