Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. Stars are typically classified by their spectrum in what is known as the Morgan-Keenan or MK system.
Gauss law states that the electric flux through any closed
surface is proportional to the net electric charge inside the surface. This is
expressed mathematically in the form of:
Φ = Q / εo
Where,
Φ = the electric flux = unknown (which we have to find for)
Q = the net electric charge = 5.0 µC = 5 E-6 C
εo = the permittivity of free space = a constant value =
8.85 E-12 C^2 / N m^2
Plugging in the values
into the equation will result in:
Φ = 5 E-6
C / (8.85 E-12 C^2 / N m^2)
Φ = 564,971.75 Wb = <span>5.6 x
10^5 Wb </span>
Answer:
c. When dropped from 10 meters
Explanation:
Falling from a height of 10 m gives it the maximum acceleration compared to the other two heights. According to Newton's second law of motion, a force on a body is proportional to its change of momentum, this means that falling at a height of 10 m will generate more acceleration which translates to more velocity. On impact, this velocity is suddenly reduced to zero, generating a large impulse that has a higher tendency of completely shattering the egg shell.
Answer:
Adsorption
Explanation:
Sidewalk cooking of egg is very popular in America. In summer people release fireworks in night sky and cook egg on the concrete sidewalk to check the level of temperature. When sunlight fall on the sidewalk most of the light is reflected back but some darker material adsorbs some photon, and when these photons are transferred to egg molecules it causes vibration among them and produce heat and cook egg.
Answer:
2.5 m/s
Explanation:
m = 0.333 kg
u = 1.89 m/s
F = 1.64 N
S = 0.281 m
Let the final velocity is v.
By energy conservation
Work done = Change in kinetic energy
F x S = 1/2 m (v^2 - u^2)
1.64 x 0.281 = 0.5 x 0.333 (v^2 - 1.89^2)
2.767 = v^2 - 3.5721
v^2 = 6.339
v = 2.5 m/s
By using kinematics
Let a be the acceleration
a = F / m = 1.64 / 0.333 = 4.925 m/s^2
Use third equation of motion
v^2 = u^2 + 2as
v^2 = 1.89^2 + 2 x 4.925 x 0.281
v^2 = 6.339
v = 2.5 m/s