In refraction, when a wave travels from one medium to another it changes speed.
Correct option is A.
Answer:
Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time.
Explanation:
The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time.
Answer: The free ending nerves.
Explanation:
At our fingertips, we have a lot of sensory nerve endings, that give information about changes that occur at your skin.
Like touching something with a given texture, feeling pain, or noticing changes in temperature.
There are different types of nerve endings, particularly the ones responsible to detect pain, and temperature are the free nerve endings.
So Marcus may have the free nerve endings damaged.
Answer:
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. ... For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes.
1. sliding 2. static 4. rolling