Strong wind above the roof, increases the velocity of the the air above it. This reduces the air pressure above the roof. High pressure under the roof pushes the roof out and therefore the roof Is taken off.
chrispohmomanyi answered the question on September 27, 2017 at 07:52
- A microscope is focused on a mark on horizontal surface. A rectangular glass block 30mm thick is
place on the mark. The microscope is then adjusted...(Solved)
A microscope is focused on a mark on horizontal surface. A rectangular glass block 30mm thick is
place on the mark. The microscope is then adjusted dd10mm upwards; to bring the mark back to
focus, determine the refractive index of the glass
Date posted: September 26, 2017. Answers (1)
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displaced. Determine the voltage the resistor(Solved)
When a current of 2.0 flows in a resistor for 10 minutes, 15,000 joules of electrical energy is
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Date posted: September 26, 2017. Answers (1)
- Two tuning forks of frequencies 256Hz and 258 Hz are sounded simultaneously and then placed
close to each other, calculate the beat frequency(Solved)
Two tuning forks of frequencies 256Hz and 258 Hz are sounded simultaneously and then placed
close to each other, calculate the beat frequency
Date posted: September 26, 2017. Answers (1)
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Explain why a person should crawl close to the floor in a smoke-filled room.
Date posted: September 26, 2017. Answers (1)
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1. Incident ray
2. Reflected ray
3. The Normal(Solved)
Define the following terms.
1. Incident ray
2. Reflected ray
3. The Normal
Date posted: September 26, 2017. Answers (1)
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Date posted: September 26, 2017. Answers (1)
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Date posted: September 26, 2017. Answers (1)
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Describe how you can charge an electroscope positively using a positively charged conductor.
Date posted: September 26, 2017. Answers (1)
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Two tuning forks of frequencies 256Hz and 258 Hz are sounded simultaneously and then placed close to each other, calculate the beat frequency.
Date posted: September 25, 2017. Answers (1)
- 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. Answers (1)
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Date posted: September 25, 2017. Answers (1)
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Date posted: September 25, 2017. Answers (1)
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Date posted: September 25, 2017. Answers (1)
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Date posted: September 25, 2017. Answers (1)
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Date posted: September 25, 2017. Answers (1)
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Date posted: September 25, 2017. Answers (1)
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State ampere's swimming rule.
Date posted: September 25, 2017. Answers (1)
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Explain why laboratory retort stands are made with a wide heavy base.
Date posted: September 25, 2017. Answers (1)
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Date posted: September 25, 2017. Answers (1)
- Oil is poured onto stagnant water in a mosquito infested area. How does this help in fighting
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Oil is poured onto stagnant water in a mosquito infested area. How does this help in fighting
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Date posted: September 25, 2017. Answers (1)