-- Photographic film detects radiation.
-- Gas occupies the whole container.
-- The Geiger counter is used to detect and measure
the intensity of radiation.
-- An atom is the <span>smallest particle to retain characteristics
of the element.
-- The atomic mass is the mass of the protons and neutrons in the atom.</span>
(The electrons hardly make any difference. One proton or neutron has
as much mass as more than 1800 electrons.)
-- A solid has a fixed shape.
-- The neutron is electrically neutral. It has no charge.
-- The proton has a positive charge.
-- The electron has a negative charge.
-- The atomic number is the number of protons in the nucleus of an atom.
Answer: Potential energy is real and is stored within matter, though a force must be applied to an object in order for it to store potential energy.
Explanation:
Answer:
0.2v
Explanation:
Data given,
Diameter=18.5cm
Hence we can calculate the radius as D/2=18.5/2=9.25cm
radius=9.25cm/100=0.0925m
The area is calculated as

magnetic field, B=1.3T
time,t=0.18s
The flux is expressed as

since the loop is parallel, the angle is 0
Hence we can calculate the flux as

to determine the emf induced in the loop, we use Faraday law

Note the voltage is not negative but the negative sign shows the current flows in other to oppose the flux
Answer:
A)5524J,
B) 29.2Nm
Explanation:
This question can be treated using work- energy theorem
Work= change in Kinectic energy
W= Δ KE
Work= difference between the final Kinectic energy and intial Kinectic energy.
We know that
Kinectic energy= 1/2 mv^2 .............eqn(1)
This can be written in term of angular velocity, as
KE= 1/2 I