A bag of cement weighing 325 N hangs from the top of a const…
A bag of cement weighing 325 N hangs from the top of a construction lift by three wires as shown. a) If the elevator is stationary, determine the tensions, T1, T2, and T3 in the wires if θ1 = 50˚ and θ2 = 40˚. b) If the lift begins accelerating downwards at a rate of 0.8 m/s2, determine the tensions, T1, T2, and T3 in the wires once it begins accelerating. a) T1 = T2 = T3 = b) T1 = T2 = T3 =
Read DetailsTwo trained professionals observe the behavior of children i…
Two trained professionals observe the behavior of children in a classroom. They each rate observed behaviors using the same form, and the number of items that were rated the same is calculated. This is an example of which type of reliability?
Read Details