Answer:
It has only 1 electron in its valence shell and if that electron is removed it will acquire noble gas configuration
Explanation:
Sodium forms an ion of charge +1 as in its ionic state it has inert gas configuration
It forms an ion of charge +1 when the valence shell electron is removed to gain the noble gas configuration and the electrons can be removed mostly from its valence shell because inner shell electrons will be tightly bounded to the nucleus of the atom and it requires high energy to remove the electron present in the inner shell when compared to the valence shell (outermost shell)
Answer:
The marble at its highest point are hmax= 1.39 meters above the floor.
Explanation:
hi= 1m
V= 3m/s
Vx= 1.1 m/s
Vy= ?
α=cos⁻¹(1.1/3)
α= 68.48º
Vy= V * sin(α)
Vy= 2.79 m/s
Vertical Velocity in highest point are Vy(hmax) = 0
Vy(hmax)= Vy - g*t
t= Vy/g
t= 0.28 sec
t : time to get the highest point
hmax= hi + Vy*t - g*t²/2
hmax= 1.39 m
It's bigger than us, for a human, we're the right size, for an elephant, it's the right size.
<span>14 m/s
Assuming that all of the energy stored in the spring is transferred to dart, we have 2 equations to take into consideration.
1. How much energy is stored in the spring?
2. How fast will the dart travel with that amount of energy.
As for the energy stored, that's a simple matter of multiplication. So:
20 N * 0.05 m = 1 Nm = 1 J
For the second part, the energy of a moving object is expressed as
KE = 0.5 mv^2
where
KE = Kinetic energy
m = mass
v = velocity
Since we now know the energy (in Joules) and mass of the dart, we can substitute the known values and solve for v. So
KE = 0.5 mv^2
1 J = 0.5 0.010 kg * v^2
1 kg*m^2/s^2 = 0.005 kg * v^2
200 m^2/s^2 = v^2
14.14213562 m/s = v
So the dart will have a velocity of 14 m/s after rounding to 2 significant figures.</span>