Answer:
Less gravity and Vacuum
Explanation:
As per the laws of gravity, acceleration due to gravity is independent of mass of an object. That means if you drop two objects of different mass form same height with zero initial speed, they will reach the ground at the same time.
Galileo had given this theory and proved it. But when you take one object as feather the presence of air makes it float and the law seems to fail. The law is correct but the only reason it fails is because the feather starts floating in the air.
To prove this we need a vacuum chamber with a great height to witness the free fall condition. Creating such a chamber on Earth is very difficult. David Scott had these advantages on the Moon. As Moon doesn't have any atmosphere so he got a natural vacuum environment.
Also, as the acceleration due to gravity on Moon is of that on the Earth, it will take less time to touch the surface and one can easily observe the free fall without any aid of high speed camera.
Answer:
The magnitude of the magnetic field is 0.83 T
Explanation:
Given :
Speed of electron inside television tube (<em>v</em>) = ×
Radius of electron moving path () = ×
According lorentz force in magnetic field is,
∴ ×
Where, = charge of electron, = speed of electron, = magnetic field and
= force on electron.
when electron is moving in circular orbit the force is given by,
∴
so we equate above both equation.
∴ ×
∴
∴ ××××××
∴ 0.83 Tesla
Therefore, the magnitude of the magnetic field is 0.83 T.
I think this might be the answer, if it is I’ll be very surprised =/
The answer is C due to the kinetic movement of the rc car driving around and the electrochemical energy turning into electrical energy.
The answer is Phenotype.
Phenotype is the observable traits on the organism which are mainly influenced by how the genotype of the organism interacts with the environment. An example of how phenotype is determined is when a gene has several alleles. The dominant alleles are expressed in phenotype while the recessive one is masked. Epistasis of alleles also occurs in many other cases.