Convection
Ridge Push
Slab Pull
Answer:
The answer to your question is: 0.25 l
Explanation:
Data
P1 = 1 atm
V1 = 0.5 l
P2 =2 atm
V2 = ?
T = constant
Formula
V1P1 = V2P2
Clear V2 from the formula
V2 = V1P1/P2
Substitution
V2 = (0.5)(1)/2 substitution
= 0.25 l result
Answer:
S, F, Mg, Ba
Explanation:
Sulfur (S) is 100pm, Fluorine (F) is 147pm, Magnesium (Mg) is 173pm, and Baruim (Ba) is 268pm
<span>Some important concepts and facts that will let you to label each statement:
1) Both fusion and fission are nuclear reactions by which atoms change and create energy.
2) Fusion is the kind reaction that occurs in the sun, at extreme high temperatures and pressures.
3) Fusion is the union of two lighter atoms into a larger one.
4) Fission is the division of one atom into two lighter atoms.
5) Fussion creates much more energy than fission and create less radioactive material than fission, but scientist have not found how to control it.
6) Fission is used in nuclear plants to generate power because it can be controlled.
7) Fusion is not used to generate power because the extreme conditions needed and lack of control.
8) Fission reactors use uranium rods to control the chain reactions by absorbing neutrons.
X:
Provides household electricity ---> FISSION
Y: Has rods containing uranium ----> FISSION
Y: Requires high temperature and pressure
-----> FUSION
X: Converts mass into energy ----> FISSION
Y: Does not produce usable amounts of
energy ----> FUSION
Y: Is controlled by neutron
absorption ----> FISSION</span>
Gases from a dead star gather and contract statement describes the formation of a nebula.
<u>Option: D</u>
<u>Explanation:</u>
- A nebula is a massive cloud of spatially dust and gas. Many nebulae derive from the gas and dust pushed out by a dying star's eruption, like a supernova. Other nebulae are environments where the formation of new stars begins.
- Five forms of cloudy or nebulous celestial bodies are planetary nebulae, emission nebulae, transparent nebulae, supernova remnants and dark nebulae.
- The He and H are predominantly responsible for dust and gases, which are widespread but gravity can begin to pull around each other clusters of dust and gas gradually.
- As these clusters grow bigger and bigger, their gravity becomes better and better. The clump of dusts and gases finally becomes so heavy that it drops from its own gravity.
