True. Because you can touch it and it's physically real.
The answer is C because when white light enters a prism, its gets separated into component colors which are red, orange, yellow, green, blue, indigo, and violet. This can also be referred to as <span>dispersion.</span>
Answer:
55 kg
Explanation:
spring constant (k) = 600 N/m
mass of chair (Mc) = 12 kg
period of oscillation of chair and man (T) = 2.1 s
what is the mass of the astronaut (Ma) ?
mass of the astronaut (Ma) = total mass (Mt) - mass of chair (Mc)
where
- total mass (Mt) =
taking π as 3.142
total mass (Mt) =
total mass (Mt) = 67 kg
therefore
mass of astronaut = 67 - 12 = 55 kg
E=hf so
f = E/h = 2.64e-21/6.6e-34 = 4.0e12Hz (answer A)