I need help on the last two questions please help
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Answers: 1
Physics, 22.06.2019 13:30
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
Physics, 22.06.2019 16:20
Select the correct answer. what does the process of natural selection involve?
Answers: 1
Physics, 22.06.2019 17:30
Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.
Answers: 3
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
History, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 18:50
Mathematics, 17.05.2021 19:00
History, 17.05.2021 19:00
Mathematics, 17.05.2021 19:00