The correct answer is
<span>B) UV waves are higher frequency and carry more energy.
In fact, UV waves have higher frequency than visible light. For comparison, visible light has frequency in the range 430-770 THz (</span>
)<span>, while ultraviolets (UV) have frequency higher than these values (at the order of 1 PHz, </span>
).
The energy of electromagnetic radiation is proportional to its frequency, according to the equation
where h is the Planck constant and f is the frequency. We see that the higher the frequency, the greater the energy, so UV waves carry more energy than visible light.
It occurs as detrital grains in sedimentary rocks. It forms under extreme pressure.
Answer:
Energy converted to heat and sound. Deformation of soil or ground may also take up some energy.
Explanation:
When the rock hits the ground, a part of the energy is converted to heat (thermal energy) and sound. If the ground is soft, it will be compressed by the rock when it lands. This deformation of the ground will take up some of the energy.
We can think of kinetic energy being transferred to the ground in the following way:
1. Ball hits the ground, and transfers kinetic energy to lots of soil particles.
2. Soil particles move a bit and transfer the energy to soil particles ahead of them.
3. Kinetic energy is transferred to a very large number of soil particles, and they move so little that we consider this vibration motion.
4. This small vibration motion is now considered as internal energy or 'heat'.
Answer:
Ratio of power produced by new to old car is 16:1
Explanation:
Assuming both cars have the same mass m
Let KE1 and KE2 be the kinetic energies of the old and new car respectively.
v1 = v
and v2 = 4v
KE1 = 1/2mv1² = 1/2mv²
KE2 = 1/2mv2² = 1/2m(4v)² = 1/2×m×16v² = 8mv²
Ratio of the power produced by the new car to the old one is simply KE2/KE1 =8mv²/1/2mv² = 16
Since the same time interval is given.