Acceleration a = F/m = 20/4 = 5 m/s^2
v = a x t = 5 × 5 =25 m/s
Answer:
36°C
Explanation:
Heat gained by the cold water = heat lost by the warm water
mCΔT = mCΔT
(1000 g) (4.184 J/g/K) (T − 20°C) = (4000 g) (4.184 J/g/K) (40°C − T)
1000 (T − 20°C) = 4000 (40°C − T)
T − 20°C = 4 (40°C − T)
T − 20°C = 160°C − 4T
5T = 180°C
T = 36°C
When two or more atoms chemically bond together, they form a molecule. Sometimes the atoms are all from the same element. For example, when three oxygen atoms bond together, they form a molecule of ozone (O3). If a molecule forms from atoms of two or more different elements, we call it a compound.
When any material is placed into a magnetic field its atoms acquire an induced magnetic moment pointing in a direction opposite to that of the external field. The material becomes magnetic
Put it in your own words
Answer:
C. While all societies use natural resources, they do not use them in
the same way
Explanation:
Natural resources are endowments by nature in a particular place. Different regions of the world have either similar or varied types of resources.
Therefore, with cultural influences and climate, these resources are put into different forms of usage.
- All societies does not use natural resources the same way.
- There are certain influences most especially based on needs that determines what a particular resource can be used for or not.
- Although synthetic materials serves as alternatives to natural resources, the cost and energy required to produce them is most times discouraging.
