Which of the following statements about pressure is not correct? pressure
A. increases with an increase in surface area B. decreases with an increase in surface area C. increases with a decrease in surface area D. increases with an increase in the applied force Correct Answer: Option A A. increases with an increase in surface...An object weight 10N immersed in a liquid displaces a quantity of the liquid. If the liquid displaced weighs 6N, determine the upthrust of the object.
A. 20N B. 10N C. 6N D. 4N Correct Answer: Option C C. 6N Explanation Upthrust = Weight of fluid displayed = 6NA spring balance, which is suspended from the roof of a lift, carries a mass of 1kg at its free end. If the lift accelerates upwards at 2.5ms‾², determine the reading on the spring balance. [g = 10ms‾²]
A. 24.0N B. 12.5N C. 7.5N D. 4.0N Correct Answer: Option B B. 12.5N Explanation F = ma = 1 x 2.5 = 2.5N weight = mg = 1 x 10 = 10N Reading = F + Wt = 2.5 + 10 = 12.5NWhich of the following physical processes cannot be explained by the molecular theory of matter?
A. evaporation B. thermal conduction C. radiation of heat D. convectional current of fluids Correct Answer: Option C C. radiation of heatWhich of the following materials is used to control the rate of neutron production in a nuclear reactor?
A. boron rods B. concrete shield C. graphite rods D. uranium rods Correct Answer: Option A A. boron rodsProducts
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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Co-Ownership Structures and Land Acquisition Methods in Nigeria
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Land Ownership Principles and Transaction Laws in Nigeria
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