Soft iron core is magnetized easily and faster than steel and forms a strong magnet.
chrispohmomanyi answered the question on September 27, 2017 at 12:27
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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)
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(a) State Newton’s first law of motion (b) Distinguish between heat capacity and specific heat capacity of a body
(Solved)
(a) State Newton’s first law of motion
(b) Distinguish between heat capacity and specific heat capacity of a body
Date posted:
September 21, 2017
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Answers (1)
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Highlight one fact which shows that heat from the sun does not reach the earth's surface by convection
(Solved)
Highlight one fact which shows that heat from the sun does not reach the earth's surface by
convection.
Date posted:
September 20, 2017
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Answers (1)
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The activity of a radioactive substance, initially at 400 counts per second reduces to 50 counts per
second in 72 minutes. Determine the half – life...
(Solved)
The activity of a radioactive substance, initially at 400 counts per second reduces to 50 counts per
second in 72 minutes. Determine the half – life of the substance
Date posted:
September 19, 2017
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Answers (1)
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Explain why boiling water is not used to sterilize clinical thermometer.
(Solved)
Explain why boiling water is not used to sterilize clinical thermometer.
Date posted:
September 19, 2017
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Answers (1)
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State any two reasons why water is not a suitable thermometric fluid.
(Solved)
State any two reasons why water is not a suitable thermometric fluid.
Date posted:
September 19, 2017
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Answers (1)
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Explain why trees bends towards a busy highway.
(Solved)
Explain why trees bends towards a busy highway.
Date posted:
September 19, 2017
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Answers (1)