Answer:
The distance from the charge is 3.35 m.
Explanation:
Given that,
Electric potential, V = 635 V
Magnitude of electric field, E = 189 N/C
We need to find the distance from the charge. We know that the relation between electric field and electric potential is given by :
d is the distance from charge
So, the distance from the charge is 3.35 m. Hence, this is the required solution.
Answer:
Some atoms do not have a proton.
Protons have about same mass as electrons.
Protons have the magnitude of charge as neutrons, but are opposite in sign.
Explanation:
Protons are the positive charge particles which are present inside the nucleus and has a mass equal to neutron.
an atom has equal number of electrons and protons hence it is not possible that atom is found in a state where is does not have any proton.
The mass of proton is equal to that of neutron but not electron. Protons are heavier than that of electrons.
Protons are the positively charged particles whereas neutrons do not have any charge present in it.
Hence the selected three options about protons are false.
Answer: a) 557.3kN b) 543kN
Explanation:
Buoyant force = weight of water displaced.
Formula for buoyant force = mg×(density of fluid/density of object)
Density of fluid = density of sea water = 1025kg/m³
Mass of the chamber(m) = 54300kg
g = acceleration due to gravity = 10m/s²
Density of chamber = mass/volume
Where volume of sphere = 4/3Πr³
radius = 4.70/2 = 2.35m
Volume = 4/3×Π(2.35)³
Volume = 54.37m³
Density of chamber = 54300/54.37
= 998.7kg/m³
Substituting the values into the formula for buoyant force
Buoyant force= 54300×10×{1025/998.7}
= 557299N
= 557.3kN
b) Tension in the cable = mass of cable × acceleration due to gravity
= 54300×10 = 543000N or 543kN.
Answer:
1.98 × 10⁻³³m
Explanation:
It is given that,
Mass of the bullet, m = 27 g = 0.027 kg
Velocity of bullet, v = 800 m/s
The uncertainty in momentum is 0.20%. The momentum of the bullet is given by :
Uncertainty in momentum is,
We need to find the uncertainty in position. It can be calculated using Heisenberg uncertainty principal as :
Answer:
What happens to the density of an object if the object is cut in half? ... The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.
Explanation:
What happens to the density of an object if the object is cut in half? ... The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.
