Energy of one photon = kinetic energy of photoelectron + work function energy of metal.
Intensity of radiation is proportional to the number of photons arriving per second
Answer:
PE = 882 J
Explanation:
Through the International System we know that the gravity of the earth is 9.8 m/s², so...
Data:
- m = 45 kg
- g = 9.8 m/s²
- h = 2 m
- PE = ?
Formula:
Replace and solve:
The potential energy of the sled is <u>882 Joules</u>.
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The girls distance aquired should be North by 344 degrees
Answer:
It cannot be changed
Explanation:
The freezing point of water cannot be changed; it stays the same.
Work is physical activity, it can also mean being hired or doing something for payment.