Answer:
Example:
0.0001 = 1 x 10-4
you can you 0 for applying weight or volume
Answer:
Expressed in kilograms, the mass of 0.098kg should still have two important digits. 0 is essential because if you don't use the zero after the decimal point then you will be using the incorrect measurement.
Hope this helps.
- Que
Continental drifts was a theory that explained in how continent shift position on the earth surface.
The theory was presented in 1912 by Alfred Wegener, who was a geophysicist and meteorologists. The theory also explained the reason why plant and animal fossils that look similar are found all over the continents.
Wegener had the thought that all the different continents were at a point joined together before it breaks up and moves to their present position.
Wegener published a book in 1915 called "The Origin of Continents and Oceans. In this book, he further explained the theory of continental drifts but the theory was widely criticized by geologists because to them, wegener did not have a good model to properly explain how the continent drifted apart.
From Wegener explanation, there were certain things he laid emphasis on, which were very accurate, like the observation about fossils and rock. Wegener thought that the Continent might have plowed through the ocean crust just like icebreakers smashing through ice.
Although, Weneger continental drift theory was discarded but there are certain facts that he established. The theory brought the idea of moving continents to geoscience and after many decades, scientists confirms most of the things the theory covered. For example, the idea that the past existence of supercontinent joined all the landmass of the world as one.
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B. Yes, she is accelerating as she turns and changes direction.
C.No, she is not accelerating because there is not an incline to the track.
D.No, she is not accelerating because her speed is constant.
D.No, she is not accelerating because her speed is constant.
The rate of change of velocity with respect to time is known as acceleration.
acceleration =change in velocity/time
As she is running at constant speed and there is no change in velocity so she is not accelerating.
Answer:
207.50°C
Explanation:
Mass of metal (M1) = 440g
Volume of water = 400mL
Initial temperature of water (T2) = 20°C
Final temperature of the mixture (T3) = 35.80°C
Specific heat capacity of the metal (C1) = 0.3850J/g°C
Specific heat capacity of water = 4.184J/g°C
Density of water = 1g/mL
Temperature of metal (T1) = ?
Heat lost by the metal = Heat gained by the water
Q = MC∇T
Q = heat energy
M = Mass
C = specific heat capacity
∇T = change in temperature
M1C1(T1 - T3) = M2C2(T3 - T2)
M2 = ?
Density = mass / volume
Mass = density * volume
Mass = 1g/mL * 400mL
Mass = 400g
M1C1(T1 - T3) = M2C2(T3 - T2)
400 * 0.3850 (T1 - 35.80) = 400 * 4.184 * (35.80 - 20)
154(T1 - 35.80) = 1673.6 * (15.8)
154T1 - 5513.2 = 26442.88
154T1 = 26442.88 + 5513.2
154T1 = 31956.08
T1 = 31956.08 / 154
T1 = 207.50
The initial temperature of the metal was 207.50°C
Answer:
Due to the lack of context for your question I’m not completely sure which you are talking about but NH can be Imidogen or it could be ammonium which is NH4^1+