Answer:
The Density of Medium: Sound requires a medium to travel. The density of the medium is among the factors which affect the speed of sound. ...
The Temperature of The Medium: Higher the temperature, the higher is the speed of sound in the medium.
Explanation:
hope it helps
a) KE=energy required to make them move=1800J
b) KE=1/2*mv^2, so 
J
Answer:
Gamma radiation
Explanation:
There are three types of ionizing radiation:
- Alpha radiation: it consists of alpha particles, which are nuclei of helium (so, they contain 2 protons and 2 neutron) --> therefore, they have a net charge of +2 (given by the positive charge of the two electrons)
- Beta radiation: it consists of electron (in case of beta-minus radiation) or positrons (in case of beta-plus radiation). Therefore, in both cases the radiation is electrically charged: charge -e for the electrons, charge +e for the positrons
- Gamma radiation: it consists of high-energy photons. Since photons are electrically neutral, gamma radiation has no electric charge associated with it.
