Answer:
Explanation:
Given
radius of neutron star
Centripetal force on material having mass m is given by
Gravitational Force between neutron star and mass m is
,where M=mass of Neutron star
equating centripetal Force and Gravitational Pull
Answer:
Option B
Explanation:
Maintenance-free battery uses Recombination Electrolyte in order to limit the oxygen and hydrogen formation during charging.
Each plate of the battery uses a glass micro-fiber separator that absorbs the whole liquid electrolyte in its pore thus resulting in no free acid.
As the battery charges to its fullest, the oxygen produced at the positive plate moves via the pores of the separator to the negative plate.
Initially it reacts and forms , i.e., Lead Sulphate, then on further charging it gets converted to Pb, i.e., lead.
Due to this, the negative plate is not able to reach the correct potential in order to liberate hydrogen, and hence no water formation takes place.
Thus technician B is correct.
Answer:
ocean wave
Explanation:
ocean waves are not a wavelength but produced from the pull of the moons gravitational pull
Answer:
10.71m/s
Explanation:
Mechanical energy is conserved since the ramp surface had no friction and the experiences no significant air resistance
Potential energy at the top of the ramp = mgh
where m is m, g = 9.8 m/s² ( acceleration due to gravity ) and h is height
since the length of the surface L of the ramp is 20.0 m and it is inclined at 17°
h, height = Lsinθ = 20 sin 17° = 5.85 m
kinetic energy of the block = mv²
potential energy = kinetic energy
m × 9.8 × 5.85 m = mv²
cancel m on both side
v = √(2 × 9.8 × 5.85) = 10.71m/s