Answer:
Explanation:
= Permeability of free space =
d = Diameter of core = 12 mm
r = Radius =
l = Length of core = 8.4 cm
N = Number of turns = 123
Inductance is given by
The self-inductance of the solenoid is
Answer: alpha decay and beta decay cause the parent nucleus to become a different element.
Explanation:
Alpha decay : It is a radioactive decay in which nucleus emits an alpha particle and turns into different atomic nucleus. During alpha decay, an atom loses 2 protons and 2 neutrons.
Beta decay is defined as the process in which beta particle is emitted. In this process, a neutron gets converted to a proton and an electron.Thus a different element is produced.
Gamma decay : In this process, the unstable nuclei transformed into stable nuclei by releasing gamma rays along with beta or alpha decay.The same element is produced.
Answer:
Time taken by the leaf to displace by 1.0 m distance is
seconds
Explanation:
As we know that initial velocity of the leaf is given as
now the acceleration upwards for the leaf is
The displacement of leaf in upward direction is
d = 1 m
so now we have
seconds
Answer:
The voltage that must be supplied is
V=1750volts
Explanation:
Step one :
The formula for the electric field between the charges is given by
E=V/d
Where E= the electric field
V= voltage or potential difference
d= the distance between the two electrodes
Step two :
Given that
E=3.5*0^6v/m
d=0.05cm to meter we have 0.0005m
V= unknown
By making v subject of formula we can solve for the required voltage
V=d*E
V=0.0005*3.5*10^6
V=1750volts
Answer:
Drag or air resistance
Explanation:
The force of friction caused by a moving fluid is called drag. When that fluid is air, it's also known as air resistance.