An employee who has integrity is ____. D. trustworthy and honesty. Hope this helps!
When a valence electron absorbs energy in the form of heat or light it uses that energy to jump to an excited state (outer level)
Answer:
Option B) The fuel for nuclear fusion comes from sea water
Explanation:
Nuclear fusion can not be carried out by using any type of water as water is composed of stable water molecules ( which is quite difficult to be decayed by any simple method.
Moreover, fusion reactions demands the combination of nuclei of lighter elements for which it makes use of the heavy isotopes of Hydrogen that are Deuterium and Tritium as fuel to carry out the nuclear fusion.
Answer:
B) 20N.s is the correct answer
Explanation:
The formula for the impulse is given as:
Impulse = change in momentum
Impulse = mass × change in speed
Impulse = m × ΔV
Given:
initial speed = 40m/s
Final speed = -60 m/s (Since the the ball will now move in the opposite direction after hitting the bat, the speed is negative)
mass = 0.20 kg
Thus, we have
Impulse = 0.20 × (40m/s - (-60)m/s)
Impulse = 0.20 × 100 = 20 kg-m/s or 20 N.s
Answer:
P.E = 0.64 k joules
Explanation:
Given data,
The mass of the block, m = 8 kg
The compression of the spring, x = 0.8 m
The spring constant is given by 'k'
When a spring is compressed to a length x, the energy stored in the spring is purely potential.
The potential energy stored in the compressed spring is given by the formula,
P.E = kx²
Substituting the given values,
P.E = k x 0.8²
P.E = 0.64 k joules
Where 'k' is the spring constant of the given spring.