Answer:
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.
Answer:
1. Rovers- These are vehicles which are designed to move on the surface on any celestial body and collect samples, data and images. Sometimes, these can be used to transport mission crew members.
2. Orbiters- These are spacecrafts designed to orbit any celestial body and collect data in form of images.
3. satellites- artificial satellites are placed in the orbit of celestial bodies for various purposes. There are various types of satellites like communication satellite, weather satellites, space telescopes. These collect images and data inform of signals.
4. space stations: It is a satellite where research and experiments take place. Images are also collected for research purpose.
Space shuttle is a wrong option because it is just a vehicle to transport these satellites and probes into the space and place in the orbit or surface of celestial body.
Answer:
[OH⁻] = 1 × 10⁻¹¹ mol/dm³
Explanation:
Since the hydronium ion concentration of the gastric fluid is [H₃O]⁺ = 1.0 × 10⁻².
The pH at this point is pH = -log₁₀[H₃O]⁺ = -log₁₀[1.0 × 10⁻²] = 2
When milk of magnesia is added, the pH increases by one unit, so the new pH is 1 + 2 = 3
Since pH + pOH = 14, then pOH = 14 - pH = 14 - 3 = 11
The hydroxide ion concentration of the fluid is gotten from
pOH = -log₁₀[OH⁻]
11 = -log₁₀[OH⁻]
-11 = log₁₀[OH⁻]
taking antilog
[OH⁻] = 1 × 10⁻¹¹ mol/dm³
(a) The initial speed at which the bottles are launched is 4.27 m/s.
(b) The horizontal displacement at which the bottle land is 1.75 m.
<h3>Initial speed of the bottle</h3>
The initial speed of the bottle is calculated as follows;
where;
- T is time of flight
- u is the initial speed
2usinθ = Tg
u = Tg/(2sinθ)
u = (0.5 x 9.8)/(2 x sin35)
u = 4.27 m/s
<h3>Horizontal displacement of the bottle</h3>
X = u²sin(2θ)/g
X = (4.27² x sin(70))/(9.8)
X = 1.75 m
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Answer:
b mixtures or substances
Explanation:
i seasrced
the web that is the anwer i got
