P=Fv
2000 x 12 =24000w
Kavungya answered the question on May 21, 2019 at 06:53
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The figure shows the velocity time graph of two identical spheres released from the surfaces of
two liquids A and B.
Give a reason why the terminal...
(Solved)
The figure shows the velocity time graph of two identical spheres released from the surfaces of
two liquids A and B.
Give a reason why the terminal velocity of the sphere In B is higher than in A.
Date posted:
May 21, 2019
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Answers (1)
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When a Bunsen burner is lit below wire gauze, it is noted the flame initially burns below the gauze as shown in the diagram below. After sometime, the flame burns...
(Solved)
When a Bunsen burner is lit below wire gauze, it is noted the flame initially burns below the gauze
as shown in the figure below.
After sometime, the flame burns below as well as above the gauze as shown in
Explain this observation
Date posted:
May 21, 2019
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Answers (1)
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An immersion heater rated at 180W is placed in a liquid of mass 2kg. When the heater is switched on for 7.5 minutes the temperature...
(Solved)
An immersion heater rated at 180W is placed in a liquid of mass 2kg. When the heater is switched on for 7.5 minutes the temperature of the liquid rises by 400C. Determine the specific heat capacity of the liquid.
Date posted:
May 21, 2019
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Answers (1)
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Other than oil patch being monolayer, state any one other assumption in the oil drop experiment.
(Solved)
Other than oil patch being monolayer, state any one other assumption in the oil drop experiment.
Date posted:
May 21, 2019
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Answers (1)
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Estimate the size of an oil molecule if a drop of oil of volume 6.0 × 10-10 m3 forms a patch of 32 on a water...
(Solved)
Estimate the size of an oil molecule if a drop of oil of volume 6.0 × 10-10 m3 forms a patch of 32 on a water surface.
Date posted:
May 21, 2019
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Answers (1)
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The following figure shows a rod made of wood on one end and metal on the other end
suspended freely with a piece of thread so...
(Solved)
The following figure shows a rod made of wood on one end and metal on the other end
suspended freely with a piece of thread so that it is in equilibrium.
The side made of metal is now heated with a Bunsen flame. State with a reason, the side to
which the rod is likely to tilt
Date posted:
May 21, 2019
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Answers (1)
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A stone of mass 40g was completely immersed in a liquid. The level of liquid are shown in the figure. Determine the density of the stone in...
(Solved)
A stone of mass 40g was completely immersed in a liquid. The level of liquid are shown in the figure
Determine the density of the stone in SI units
Date posted:
May 21, 2019
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Answers (1)
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In the clothing and textile industries the machines experience electrostatic forces at certain points. Suggest one method of reducing these forces
(Solved)
In the clothing and textile industries the machines experience electrostatic forces at certain points. Suggest one method of reducing these forces
Date posted:
May 21, 2019
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Answers (1)
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A wire was connected to a battery and was found that the energy converted to heat was 30J when 20C of charge flowed through the...
(Solved)
A wire was connected to a battery and was found that the energy converted to heat was 30J when 20C of charge flowed through the wire in 5 seconds. Calculate;
i) The p.d between the ends of the wire
ii) The current flowing through the wire
iii)The resistance of the wire
iv)The average power development in the wire
Date posted:
May 20, 2019
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Answers (1)
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Sketch a simple diagram that contains a capacitor, a two way switch, and a load resistor that can be used for charging and discharging a...
(Solved)
Sketch a simple diagram that contains a capacitor, a two way switch, and a load resistor that can be used for charging and discharging a capacitor.
Date posted:
May 20, 2019
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Answers (1)
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A gun is fired and an echo heard at the same place 0.6s later. How far is the barrier, which reflected the sound from the...
(Solved)
A gun is fired and an echo heard at the same place 0.6s later. How far is the barrier, which reflected the sound from the gun? (Speed of sound in air=330ms-1
Date posted:
May 20, 2019
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Answers (1)
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Figure below shows two plane mirrors inclined at an angle x from each other. A viewer counts a total of seven images by looking directly...
(Solved)
Figure below shows two plane mirrors inclined at an angle x from each other. A viewer counts a total of seven images by looking directly from the object O. Determine value of angel x.
Date posted:
May 20, 2019
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Answers (1)
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A piece of wire of length 12m is stretched through 2.5cm by a mass of 5 kg. assuming that the wire obeys the Hookes law,...
(Solved)
A piece of wire of length 12m is stretched through 2.5cm by a mass of 5 kg. assuming that the wire obeys the Hookes law, what force will stretch it through 4.0 cm.
Date posted:
May 20, 2019
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Answers (1)
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An object of the mass 150kg moving at 20m/s collides with a stationary object of mass 90kg.They couple after collision .Determine the :
(i) Total momentum...
(Solved)
An object of the mass 150kg moving at 20m/s collides with a stationary object of mass 90kg.They couple after collision .Determine the :
(i) Total momentum before collision
(ii) Total momentum after collision
(iii) Their common velocity after collision
Date posted:
May 20, 2019
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Answers (1)
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The figure below shows a metallic rod of length 10cm and uniform cross-sectional area 4cm2 suspended from spring balance with 7.5 cm of its length...
(Solved)
The figure below shows a metallic rod of length 10cm and uniform cross-sectional area 4cm2 suspended from spring balance with 7.5 cm of its length immersed in water. The density of the material is 1.5g/cm3.The density of water is 1 g/cm3
Determine:
i) The mass of the rod
ii) The upthrust acting on the rod
iii) The reading 0f the spring balance
iv) The reading of the spring balance when the rod is wholly immersed in water
Date posted:
May 20, 2019
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Answers (1)
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On the axis provided sketch a graph of mechanical advantage (MA) against load for a pulley
system
(Solved)
On the axis provided sketch a graph of mechanical advantage (MA) against load for a pulley
system
Date posted:
May 20, 2019
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Answers (1)
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Water flows steadily along a horizontal pipe at a volume rate of 8.0×10-3m3/s.If the cross-section area of the pipe is 20cm2. Calculate the velocity of...
(Solved)
Water flows steadily along a horizontal pipe at a volume rate of 8.0×10-3m3/s.If the cross-section area of the pipe is 20cm2. Calculate the velocity of the fluid.
Date posted:
May 20, 2019
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Answers (1)
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State two practical applications of stability
(Solved)
State two practical applications of stability
Date posted:
May 20, 2019
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Answers (1)
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You are provided with a test – tube, thread and a meter ruler. Outline the steps you would use to measure the circumference and hence...
(Solved)
You are provided with a test – tube, thread and a meter ruler. Outline the steps you would use to measure the circumference and hence the diameter of the test – tube.
Date posted:
May 20, 2019
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Answers (1)
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The figure below shows a rubber sucker, explain why the sucker sticks on a clean flat
Surface.
(Solved)
The figure below shows a rubber sucker, explain why the sucker sticks on a clean flat
Surface.
Date posted:
May 20, 2019
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Answers (1)