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The waves can be reflected
chrispohmomanyi answered the question on October 17, 2017 at 12:26
- State two conditions necessary for the occurrence of an annular eclipse ...(Solved)
State two conditions necessary for the occurrence of an annular eclipse
Date posted: October 17, 2017. Answers (1)
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Date posted: October 17, 2017. Answers (1)
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(Solved)
State the difference between an ideal and real gas
Date posted: October 17, 2017. Answers (1)
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Explain why it is possible to compress gases but not solid or liquid
Date posted: October 17, 2017. Answers (1)
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Explain how heat demagnetizes a magnet.
Date posted: October 17, 2017. Answers (1)
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What is the angle of deviation
Date posted: October 17, 2017. Answers (1)
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Define the following terms as used in sound.
1. Pitch
2. Intensity
Date posted: October 17, 2017. Answers (1)
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State two differences between heat and temperature.
Date posted: October 17, 2017. Answers (1)
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Explain why a nail rubbed with oil penetrates timber easily when hammered than a dry nail.
Date posted: October 17, 2017. Answers (1)
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Name the most suitable instrument for measuring the diameter of a thin wire or strand of hair.
Date posted: October 17, 2017. Answers (1)
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2000 cm^3 of fresh water of density 1000 cm^3 is mixed with 3200 cm^3 of sea water of density 1025 cm^3. Calculate the density of the mixture.
Date posted: October 16, 2017. Answers (1)
- The mass of a substance is always constant whether an object is on the moon or the earth or any other planet. Explain.(Solved)
The mass of a substance is always constant whether an object is on the moon or the earth or any other planet. Explain.
Date posted: October 16, 2017. Answers (1)
- If a ream of 500 paper has a mass of 3 kg. find the mass of a single paper in:
a. kg
b. mg
(Solved)
If a ream of 500 paper has a mass of 3 kg. find the mass of a single paper in:
a. kg
b. mg
Date posted: October 16, 2017. Answers (1)
- The mass of a density bottle is 20 g when empty and 45 g when filled with water. If it is filled with liquid x...(Solved)
The mass of a density bottle is 20 g when empty and 45 g when filled with water. If it is filled with liquid x its mass is 400 g. Calculate the density of liquid x. (density of water 1.0 g/cm^3)
Date posted: October 16, 2017. Answers (1)
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When using a density bottle there are some precautions that should be observed. Mention two of them.
Date posted: October 16, 2017. Answers (1)
- A rectangular tank measures 25.0 m long, 10.0 m wide and 2 m high. Calculate the mass of water in the tank when it is...(Solved)
A rectangular tank measures 25.0 m long, 10.0 m wide and 2 m high. Calculate the mass of water in the tank when it is half full. (Density of water 1000 kg/m^3, assume these measurement are internally taken).
Date posted: October 16, 2017. Answers (1)
- The density of mercury is 13.6 g/cm^3. Find the volume of 4000 g of mercury in m^3.(Solved)
The density of mercury is 13.6 g/cm^3. Find the volume of 4000 g of mercury in m^3.
Date posted: October 16, 2017. Answers (1)
- A block of glass in the laboratory was found to be 200 g, and it measured 6 cm, 5 cm, 1 cm. Calculate the density...(Solved)
A block of glass in the laboratory was found to be 200 g, and it measured 6 cm, 5 cm, 1 cm. Calculate the density in kg/m^3.
Date posted: October 16, 2017. Answers (1)
- The density of certain materials was found to be 32.5 g/cm^3. Express this in SI units.(Solved)
The density of certain materials was found to be 32.5 g/cm^3. Express this in SI units.
Date posted: October 16, 2017. Answers (1)
- The density of sea water is found to 1.005 g/cm^3. Express this density in kg/m^3.(Solved)
The density of sea water is found to 1.005 g/cm^3. Express this density in kg/m^3.
Date posted: October 16, 2017. Answers (1)