Steam has more energy and would release its latent heat of vaporization before turning to water at 1000C.
chrispohmomanyi answered the question on February 9, 2018 at 06:12
- A bullet is fired horizontally at a target. Neglecting air resistance, give a reason why the horizontal acceleration of the bullet is zero.(Solved)
A bullet is fired horizontally at a target. Neglecting air resistance, give a reason why the horizontal acceleration of the bullet is zero.
Date posted: February 9, 2018. Answers (1)
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If the mirror is rotated through an angle of 10 degrees, by how many degrees will the reflected ray be rotated?
Date posted: February 9, 2018. Answers (1)
- A search boat uses a signal of frequency 6.0 x 104 Hz to detect a sunken
ship directly below. Two reflected signals are received; one...(Solved)
A search boat uses a signal of frequency 6.0 x 104 Hz to detect a sunken
ship directly below. Two reflected signals are received; one after 0.1
seconds from sunken boat and the other after 0.14 seconds from the sea
bed. If the sea bed is 98 m below the boat, determine:-
(i)The speed of the signal in water.
(ii)The depth of the sunken ship below the boat
Date posted: February 7, 2018. Answers (1)
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found to have an activity rate of 1.6 x 103...(Solved)
The half-life of an element X is 3.83 days. A sample of this element is
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particular time. Determine its activity rate after 19.15 days
Date posted: February 7, 2018. Answers (1)
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A gas occupies a volume of 4000 litres at a temperature of 37 degrees celcius and
normal atmospheric pressure. Determine the new volume of the gas if it is
heated at constant pressure to a temperature of 670C (normal atmospheric
pressure P= 1.01 x 105 pa)
Date posted: February 7, 2018. Answers (1)
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Date posted: February 7, 2018. Answers (2)
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Distinguish between solid,liquid and gas with reference to intermolecular forces?
Date posted: February 5, 2018. Answers (1)
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Give two mechanical properties of composite materials used in fixing teeth.
Date posted: February 5, 2018. Answers (1)
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State factors that affect rate of evaporation
Date posted: January 30, 2018. Answers (1)
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Date posted: January 30, 2018. Answers (1)
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Explain the benefits of thermal imaging cameras.
Date posted: January 29, 2018. Answers (1)
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State the advantages of using temperature data loggers.
Date posted: January 29, 2018. Answers (1)
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State the advantages of using K-type thermometers.
Date posted: January 29, 2018. Answers (1)
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State the advantages of using probe thermometers.
Date posted: January 29, 2018. Answers (1)
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Identify the benefits of using infrared thermometers.
Date posted: January 29, 2018. Answers (1)
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Date posted: January 28, 2018. Answers (1)
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Date posted: January 27, 2018. Answers (1)
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State the disadvantages of using mirrors as optical instruments?
Date posted: January 26, 2018. Answers (1)
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A body weighs 3.6N in air and 2.4N when fully immersed in water.The density of the body in g/cm^3 is?
Date posted: January 25, 2018. Answers (1)
- A machine with an efficiency of 60% is used to overcome a load of 60N through the application of a force of 40N. Calculate...(Solved)
A machine with an efficiency of 60% is used to overcome a load of 60N through the application of a force of 40N. Calculate the velocity ratio of the machine
Date posted: January 24, 2018. Answers (1)