Answer:
the answer is helium you already know that because im in college on my way to the military next week bless me
Explanation:
When water changes to ice, its density decreases and its volume increases.
Answer:
A: Conduction
B: Convection
C: Radiation
Explanation:
Conduction is the transfer of heat in internal energy by microscopic collisions of particles and movement of electrons within a body so from the fire hitting the metal. Convection is the heat transfer due to the bulk movement of molecules within fluids such as gases and liquids so the water boiling in the pot. Radiation is the handle heating up due to the heat interacting with it.
Answer:


Explanation:
Given:
- minimum amplitude at the start of oscillation cycle,

- the first maximum amplitude after the start of oscillation cycle,

- Time taken to reach from the first minima to the first maxima,

As we know that an oscilloscope executes a wave cycle represented by a sine wave. So we can deduce that it has executed one-fourth of the cycle in going from the amplitude of 20 units to 100 units in 0.005 seconds.
<u>So the time taken to complete one cycle of the oscillation:</u>

is the time period of the oscillation
<u>We know frequency:</u>


