v initial = 0m/s
v final = 40m/s
t = 5s
d = ?
The kinematic equation which relates these quantities:
d = 1/2(vinitial + vfinal)t
d = 0.5(0+40)(5)
d = 100m
Explanation:
Some atoms are unstable. They have too much energy or the wrong mix of particles in the nucleus. So to make themselves more stable, they breakdown (or decay) and get rid of some matter and/or some energy. This is called radioactive decay and isotopes of atoms that do this are called radioisotopes.
The process is spontaneous and random. You can't do anything to speed it up or slow it down and you can't predict when it will happen. The only reason we can do any calculations on radioisotopes is because there are huge numbers of atoms in most samples so we can use statistics to accurately predict what's most likely to happen.
energy moves through the sun in two main way, Radiation and Convection.
Explanation:
as the energy moves outward from the sun's core, 1st enters rhe radiation zone. the radiation zone is a region of highly compressed gas. here the energy is transferred by the absorption and irradiation of electromagnetic waves
here the charge density of metal plate is given as
now the electric field is given Gauss law
now here E = constant
so we will have
Since total area on both sides of plate will be double and becomes 2A
Now if we will find the electric field inside the metal plate
Then as we know that total charge inside the plate will always be zero
so we have
After looking around, I really can't find any chart. But you told me the distance covered and the time it takes to cover the distance, so I can calculate the speed by using a pretty simple formula ... it's actually the definition of speed, and it'll be useful to you if you memorize it:
Speed = (distance covered) divided by (time to cover the distance) .
With the numbers you gave in your question ...
Speed = (400 meters) / (20 seconds)
Speed = 20 meters/second
