<span>A. 59 degrees......
Hope it works</span>
Answer: Electron
In atom, there are proton and neutron inside the nucleus and electron which was moving in orbit outside of the nucleus. The electron is a negatively charged, a proton is positively charged and neutron is neutral. Since there are only proton and neutron in the nucleus it's become positively charged.
Answer:
36.11 degrees
Explanation:
index of refraction n = sin i/sinr
i is the angle of incidence
r is the angle of refraction
Substitute into the expression
1.39 = sin55/sin(r)
1.39 = 0.8191/sin(r)
sin(r) = 0.8191/1.39
sin(r) = 0.5893
r = arcsin(0.5893)
r = 36.11
hence the angle of refraction of light is 36.11 degrees
Answer
input, output, processing and storage
Explanation:
Answer:
Explanation:
hence making time the subject then
Substituting 50 cm which is equivalent to 0.5 m for distance and velocity as given as 
we obtain
From kinematic equation
and taking g as 9.81 then
