The weight/force of the object is F = mg = (5.00 kg)(9.81 m/s^2) = 49.05 N
The work done in moving the object is W = Fd = (49.05 N)(3.00 m) = 147.15 J
The power required to accomplish this work in 2.50 s is P = W/t = 147.15 J / 2.50 s = 58.86 Watts
Power requirement increases with increased weight and increased distance, but decreases with increased time.
By creating models scientists can have a little knowledge how specific element might look, and by the way will help them to be more creative, imaginative and reasonable.
Answer:
The angle between the extreme red and extreme violet light in the glass is 1.18°
Explanation:
According the Snell's law:
Where
na = refractive index of air = 1
θa = angle of incidence in air = 66°
For red light nb = 1.61
Replacing:
For violet light nb = 1.66
So, the angle between the extreme red and extreme violet light in the glass is 34.57-33.39 = 1.18°
