Answer:
2000 V/m
1778021.69323 m/s
Explanation:
V = Voltage = 9 V =
q = Charge of proton =
m = Mass of electron =
v = Velocity of electron
Electric field is given by
The electric field is 2000 V/m
Here, the energy of the system is conserved
The velocity of the electron is 1778021.69323 m/s
The correct answer would be Electron Cloud
The resultant force on the system is equivalent to the difference in the weights of the chandelier and Robin Hood.
F(net) = 240g - 85g
F(net) = 155g
Robin Hood's Acceleration:
F = ma
155g = 85a
a = 17.89 m/s²
Tension = mg + ma
Tension = 85(g + a)
Tension = 2400 N
Answer:
Explanation:
The time at which an object from from rest depends on air resistance, the height, gravity.
Since the question says we should neglect air resistance and both the ball and the bullet are from the same height they will get to the ground and the same time since they are both fired on earth which has the same gravity..
H=ut+1/2gt^2.
For an object dropping from a height the initial velocity is zero, therefore u=0m/s.
The formula becomes
t=√(2H/g)
So the time and object get to the ground depends on the height from the ground and gravity...
So since no air resistance they will get to the ground together.
C is correct as a planet with less mass means less gravity.