speed at end is accn of gravity x time
9.81x12=just over98.1m/s
Ionising radiation (ionizing radiation) is radiation that carries enough energy to free electrons from atoms or molecules, thereby ionizing them. Ionizing radiation is made up of energetic subatomic particles, ions or atoms moving at high speeds (usually greater than 1% of the speed of light), and electromagnetic waves on the high-energy end of the electromagnetic spectrum.
Answer:
Calculate the mass of 6.022 × 1023 molecule of Calcium carbonate (CaCO3).
Solution —
Molar mass (Molecular mass in gram) of CaCO3 = 40+12+3×16 = 100 g
No. of moles of CaCO3
= No. of molecules/Avogadro constant
= 6.022 × 1023/ 6.022 × 1023
= 1 mole
Mass of CaCO3
= No. of moles × molar mass
= 1 × 100 g = 100 g.
Answer:
The electrical energy supplied is 0.233 kWh
Explanation:
Given :
Mass of air 
kg
Initial temperature 
298 K
Final temperature 
350 K
Heat loss 
kJ
From the first law of thermodynamics,
We know that internal energy is proportional to difference of temperature,
Now we need answer into kWh so ( 1 kWh = 3600 kJ ).
So we need to multiply ( 
)
![W_{in} = [15 \times (350-298) + 60 ] \times \frac{1}{3600}](https://tex.z-dn.net/?f=W_%7Bin%7D%20%3D%20%5B15%20%5Ctimes%20%20%28350-298%29%20%2B%2060%20%5D%20%5Ctimes%20%5Cfrac%7B1%7D%7B3600%7D)
kWh
kWh
Therefore, the electrical energy supplied 0.233 kWh
<h2>Three Warning Signs </h2>
Violent volcanoes live in cities close to oceanic trenches where tectonic plates are overwhelming into the screen. The plates move down water which then promotes going in the warm screen and prompts eruption at the cover.
Some are popular for ancient disasters like Mt. Pelée in 1902 which annihilated 30,000 people in the town of St. Pierre. Volcanological towers cover activity mounting up to an eruption which is called as precursors. These devastating volcanoes serve to bounce. Yet still previous shakings they also can withstand daily, copied, slow vibrations in earth inflammation and destruction and gas release as well.
