Answer:
Weight, W = 400 N
Explanation:
Give that,
Mass of a girl, m = 40 kg
We need to find the weight of a girl.
Weight of an object is given by :
W = mg
g is the acceleration due to gravity
Putting all the values,
W = 40 kg × 10 m/s²
= 400 N
Hence, the weight of a girl is 400 N.
<h3>Answer: 22.48°</h3><h3 /><h3>Explanation:</h3>
refractive index = sin i / sin e
where i is the angle of incidence
e is the angle of refraction
1.5 = sin 35 / sin e
1.5 = 0.5736/sin e
sin e = 0.5736/ 1.5
sin e = 0.3824
e = 22.48°
<h3 />
Answer:
The lowest energy of electron is the ground state.
Explanation:
The net force! That would be the total force off all the forces acting on an object. :)