Answers: 3
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 15:50
An object with initial temperature 130 โ f is submerged in large tank of water whose temperature is 50 โ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = โ 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Physics, 23.06.2019 02:10
Which best describes the weak nuclear force? it maintains attraction between the m ecules in liquids. it attracts the nucleus of one atom to the nucleus of another atom. it pulls all matter in the universe together it keeps particles that make up protons and neutrons together
Answers: 1
Physics, 23.06.2019 04:40
Abody covers a semicircle of radius 7cm in 5s .find its linear speed
Answers: 1
A0.50 kilogram ball is held at a height of 20 meters. what is the kinetic energy of the ball when it...
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