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WELCOME TO WAEC PHYSICS PRACTICAL PORTAL Thursday 20th August 2020 Physics 3(Practical) (Alternative A)(1st set) – 9:30 – 12:15pm Physics 3(Practical) (Alternative A)(2nd set) – 12:45pm – 3:30pm ++++++++++++++++++++++++++++++++++++++++++++++ (1) TABULATE: S/N: 1,2,3,4,5 M(g):40.0,60.0,80.0,100.0,120.0 x(cm):37.50,25.0,18.75,15.00,12.50 x^-1(cm^-1):0.027,0.40,0.053,0.067,0.08 x^-1(*10^-3):27.00,40.00,53.00,67.00,80.00 Note: G=50.0cm Y=30.0cm (1axi) -I ensured that the metre rule balances horizontally before readings are taken inorder to avoid experimental error -I ensured that parallax error was avoided when taking the readings on the metre rule by viewing mit calibrations vertically (1bi) The moment of a force about a point is defined as the effect of the force about the point Moment of a force=Force x perpendicular distance of a line of action from the point Moment=F*L The S.I untiy is Newtonmetre(Nm It is a vector quantity (1aii) DRAW THE DIAGRAM x=50-25=25cm y=80-50=30cm From the pr...

 WAEC ECONOMICS answers Wednesday 19th August 2020 Economics 2(Essay) – 9:30am – 11:30am Economics 1(objective) – 11:30 am – 12:30pm +++++++++++++++++++++++++++++++++++++++++++++++++++++ (1a) X=80=-9.8|80-70=Y|z=5 50/2 X=80-9.8 | Y | z=25 X = 70.2 | (1b) (i) Increasing returns ( level 0 to level 2) (ii) Decreasing returns ( level 3 to level 6) (iii) negative returns ( level 6) (1c) The law of diminishing returns states that if increasing quantities of one factor are combined with a fixed supply of others in productions, a point is reached from which each extra variable factor added yields loss and less addition to the total output. (1di) DRAW THE GRAPH (1dii) (i) The total product at any given level of labour input is equal to the sum of all the marginal product up to that (ii) The MP is zero of the point where TP is maximum ============================================= (3a) Consumer goods can be defined as goods that mainly used for immediate purpose and which can not last long be...

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Is Serena Williams Playing the US Open 2020?   The news that the  2020 US Open  would be taking place came as a pleasant surprise to tennis fans. This is because the 2020 Wimbledon had already been canceled due to the pandemic and it looked like the US Open would suffer the same fate. Now the question in everybody’s minds is whether players like Serena Williams are playing the event. What has Serena Williams Said About Playing at the 2020 US Open? Ever since the event was confirmed, many players have been skeptical about it. The fact that the coronavirus is still spreading rapidly in the United States along with the protocols in place at the event seem to have made several players wary. It looks like many of the top players might skip the event this year. But not Serena Williams. She confirmed that she would take part in the US Open and even said that the organizers were doing a good job at making it safe. She said,  “I really cannot wait to return in New York and pl...

Malaria 'completely stopped' by microbe By James Gallagher Health and science correspondent Share Image copyright GETTY IMAGES Image caption Malaria is spread by the bite of infected mosquitoes Scientists have discovered a microbe that completely protects mosquitoes from being infected with malaria. The team in Kenya and the UK say the finding has "enormous potential" to control the disease. Malaria is spread by the bite of infected mosquitoes, so protecting them could in turn protect people. The researchers are now investigating whether they can release infected mosquitoes into the wild, or use spores to suppress the disease. What is this microbe? The malaria-blocking bug, Microsporidia MB, was discovered by studying mosquitoes on the shores of Lake Victoria in Kenya. It lives in the gut and genitals of the insects. The researchers could not find a single mosquito carrying the Microsporidia that was harbouring the malaria parasite. And la...

Irrfan Khan: The Bollywood star loved by Hollywood Dies  Share this wit Image copyright GETTY IMAGES Image caption Irrfan's big break came in Slumdog Millionaire Bollywood actor Irrfan Khan has died aged 53. Here biographer Aseem Chhabra charts how the actor also rose to become one of its biggest stars in the West. In 2007 Irrfan came to New York to promote Michael Winterbottom's A Mighty Heart, an investigation into the kidnapping and murder of the Wall Street Journal's South Asia correspondent Daniel Pearl. In the midst of interviews with him and his co-stars, including Angelina Jolie, Irrfan pulled me aside and talked to me in Hindi. He asked if anything was happening - if people recognised him and whether he had a chance to get more work in the West. A Mighty Heart was Irrfan's second international project. His first, Mira Nair's The Namesake (2006) - a story about Indian American immigrants that was financed by a Hollywood studio -...

D.C. Police: Man in custody after firing shots on Cuban Embassy with assault-style rifle   3 VIEW ALL PHOTOS D.C. Police: Man in custody after firing shots on Cuban Embassy with assault-style rifle WASHINGTON (ABC7) —  D.C. Police have arrested a man who they say fired an assault-style rifle towards the Cuban Embassy in Northwest during the early hours of Thursday morning. Officers responded to the 2600 block of 16th Street NW for the report of gunshots in the 2 a.m. hour. When they arrived, they found a man with an assault-style rifle and took him into custody. They say the man had arrived in an SUV with Texas license plates and an American flag on top. There were no injuries reported, and the weapon was recovered. Investigators believe he was shooting towards the Cuban Embassy. Witnesses tell ABC7 they heard multiple gunshots. Sam Sweeney ✔ @SweeneyABC  ·  58 m BREAKING: Man in custody af...