10. A spring whose composition is not completely known might be either bronze (sp gr 8.8) or brass (sp gr 8.4). It has a mass of
1 answer:
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Answer:
The magnetic field required required for the beam not to be deflected is
Explanation:
From the question we are told that
The charge on the particle is
The mass of the particle is
The potential difference is
The potential difference between the two parallel plate is
The separation between the plate is
The Kinetic energy experienced by the beam before entering the region of the parallel plate is equivalent to the potential energy of the beam after the region having a potential difference of 1.8kV
Generelly
And
Equating this two formulas
making v the subject
Substituting value
Generally the electric field between the plates is mathematically represented as
Substituting value
the magnetic field is mathematically evaluate
Answer:
Explanation:
Close to Earth's surface, the force of gravity that pulls an object towards the ground is
(2)
where
m is the mass of the object
g is the acceleration due to gravity, which is close to Earth's surface
This is an approximation of the general formula of gravity valid only close to Earth's surface. The more general formula is
(1)
where
G is the gravitational constant
M is the Earth's mass
m is the object's mass
r is the distance of the object from Earth's center
At the Earth's surface,
r = R (Earth's radius), and by calling the following factor
we see that eq.(1) becomes eq.(2).