3. A stone is thrown upward from the top of a building at an angle of 300 to the horizontal and with an initial speed of 20.0 m/s. The point of release is 45.0 m above the ground, a. How long does it take for the stone to hit the ground? b. What is the stone’s speed at impact?
c. Determine the horizontal range of the stone​

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.