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During the backstroke, the pressure inside the syringe is reduced below the atmospheric pressure. Atmospheric pressure pushes the water into the syringe.
chrispohmomanyi answered the question on October 4, 2017 at 05:57
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Explain why a concave meniscus is formed on the surface of water while convex meniscus on mercury liquid.
Date posted: October 4, 2017. Answers (1)
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State the purpose of carbon powder in a dry cell.
Date posted: October 4, 2017. Answers (1)
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State two ways of increasing the mechanical advantage of a hydraulic machine.
Date posted: October 4, 2017. Answers (1)
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Date posted: October 4, 2017. Answers (1)
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An FM radio station aired its transmission at the frequency of 100 Mega Hertz. Calculate its wavelength given that the velocity of the wave is 3.0 x 10^8 m/s
Date posted: October 2, 2017. Answers (1)
- The strength of an electromagnet can be increase by certain modifications. State the two likely ways
one...(Solved)
The strength of an electromagnet can be increase by certain modifications. State the two likely ways
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Date posted: October 2, 2017. Answers (1)
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When girl was carrying a bucket full of water she leaned away from it. State the reason.
Date posted: October 2, 2017. Answers (1)
- Oil was accidentally spilled over a large surface area of the ocean. State two environmental hazards
that...(Solved)
Oil was accidentally spilled over a large surface area of the ocean. State two environmental hazards
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Date posted: October 2, 2017. Answers (1)
- Iron fillings were found to cling in large quantities at the ends of a bar magnet.
Explain this...(Solved)
Iron fillings were found to cling in large quantities at the ends of a bar magnet.
Explain this observation.
Date posted: October 2, 2017. Answers (1)
- A student took an accumulator to be charged. He was advice to leave the caps of the cell open. Give the
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A student took an accumulator to be charged. He was advice to leave the caps of the cell open. Give the
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Date posted: October 2, 2017. Answers (1)
- A lady wearing sharp pointed heeled shoes walked through a banking hall lined with wooden tiles. State
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A lady wearing sharp pointed heeled shoes walked through a banking hall lined with wooden tiles. State
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Date posted: October 2, 2017. Answers (1)
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Wide tyres are fitted on a vehicle to reduce pressure exert on the road. Explain.
Date posted: October 2, 2017. Answers (1)
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From the expression P = pgh. State the factors that affect pressure of a fluid.
Date posted: October 2, 2017. Answers (1)
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Give one function of the cylindrical anodes in the CRO. tube.
Date posted: October 2, 2017. Answers (1)
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Atmospheric pressure decreases with increase in height. Explain
Date posted: October 2, 2017. Answers (1)
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What is a bimetallic strip.
Date posted: October 2, 2017. Answers (1)
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Give two external factors that affect the rate of evaporation of a liquid.
Date posted: October 2, 2017. Answers (1)
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Briefly describe how you would make an electromagnet
Date posted: October 2, 2017. Answers (1)
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Describe one practical application of the Photoelectric effect.
Date posted: October 2, 2017. Answers (1)
- In a photoelectric effect experiment, light was directed incident to a metal surface. The wavelength of the light was then doubled maintaining the intensity constant....(Solved)
In a photoelectric effect experiment, light was directed incident to a metal surface. The wavelength of the light was then doubled maintaining the intensity constant. Explain the resulting effect to:
(I) Photoelectric current
(ii). Kinetic energy of the Photoelectrons.
(iii). Work function of the metal.
Date posted: October 2, 2017. Answers (1)