Lower atmospheric pressure at higher altitudes; hence there is more fluid pressure in the pen
hence pressure difference causes ink to ooze out;
gideon1 answered the question on September 28, 2017 at 14:35
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Explain why ice skaters use sharp – edged shoes to slide on ice.
(Solved)
Explain why ice skaters use sharp – edged shoes to slide on ice.
Date posted:
September 28, 2017
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Answers (1)
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A body is initially in motion. If no external force acts on the body, describe the subsequent motion.
(Solved)
A body is initially in motion. If no external force acts on the body, describe the subsequent motion.
Date posted:
September 28, 2017
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Answers (1)
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Apart from friction, name another factor that reduces efficiency in machines.
(Solved)
Apart from friction, name another factor that reduces efficiency in machines.
Date posted:
September 28, 2017
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Answers (1)
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Define the term local action
(Solved)
Define the term local action
Date posted:
September 28, 2017
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Answers (1)
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Describe one method of determining the diameter of the oil drop
(Solved)
Describe one method of determining the diameter of the oil drop
Date posted:
September 27, 2017
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Answers (1)
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Explain why soft iron core is more suitable than steel core for use in the electromagnet.
(Solved)
Explain why soft iron core is more suitable than steel core for use in the electromagnet.
Date posted:
September 27, 2017
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Answers (1)
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Explain why water would boil faster at the mountain top than at the sea level.
(Solved)
Explain why water would boil faster at the mountain top than at the sea level.
Date posted:
September 27, 2017
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Answers (1)
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Describe how the type of charge on a charged metal rod can be determined.
(Solved)
Describe how the type of charge on a charged metal rod can be determined.
Date posted:
September 27, 2017
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Answers (1)
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State any difference between sound and water waves.
(Solved)
State any difference between sound and water waves.
Date posted:
September 27, 2017
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Answers (1)
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Explain why a person should crawl close to the floor in a smoke-filled room.
(Solved)
Explain why a person should crawl close to the floor in a smoke-filled room.
Date posted:
September 26, 2017
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Answers (1)
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An electric pump can raise water from a low level reservoir to the higher – level reservoir at the rate of 3.0 x 10^5 kg...
(Solved)
An electric pump can raise water from a low level reservoir to the higher – level reservoir at the rate of 3.0 x 10^5 kg per hour.The vertical height of the water raised 360m.If the rate of energy loss in form of heat is 200KW, determine the efficiency of the pump.
Date posted:
September 25, 2017
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Answers (1)
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State Fleming’s right-hand rule or the motor rule
(Solved)
State Fleming’s right-hand rule or the motor rule
Date posted:
September 25, 2017
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Answers (1)
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State right hand grip rule for a loop.
(Solved)
State right hand grip rule for a loop.
Date posted:
September 25, 2017
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Answers (1)
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Explain why laboratory retort stands are made with a wide heavy base.
(Solved)
Explain why laboratory retort stands are made with a wide heavy base.
Date posted:
September 25, 2017
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Answers (1)
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State two ways in which the stability of a body can be increased.
(Solved)
State two ways in which the stability of a body can be increased.
Date posted:
September 25, 2017
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Answers (1)
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Two thin blankets are warmer than a single thick one. Explain.
(Solved)
Two thin blankets are warmer than a single thick one. Explain.
Date posted:
September 25, 2017
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Answers (1)
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State three properties of liquids used in the brake fluid.
(Solved)
State the properties of a hydraulic brake fluid.
Date posted:
September 24, 2017
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Answers (1)
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A force of 100 N is applied to an area of 100 square millimeters. What is the pressure exerted on the area?
(Solved)
A force of 100 N is applied to an area of 100 square millimeters. What is the pressure exerted on the area?
Date posted:
September 24, 2017
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Answers (1)
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Trucks which carry heavy loads have many wheels. Explain?
(Solved)
Trucks which carry heavy loads have many wheels. Explain?
Date posted:
September 24, 2017
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Answers (1)
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State two applications of parabolic mirrors.
(Solved)
State two applications of parabolic mirrors.
Date posted:
September 24, 2017
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Answers (1)