Answers: 3
Physics, 22.06.2019 14:00
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
Physics, 22.06.2019 17:30
Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?
Answers: 2
Physics, 22.06.2019 18:00
Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly
Answers: 2
Physics, 22.06.2019 18:30
Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?
Answers: 3
When you drop a 2kg iron weight and a 5kg iron weight from a height, predict which one will fall fir...
Mathematics, 09.11.2019 19:31
Mathematics, 09.11.2019 19:31
Mathematics, 09.11.2019 19:31
Computers and Technology, 09.11.2019 19:31
History, 09.11.2019 19:31
Social Studies, 09.11.2019 19:31
History, 09.11.2019 19:31
Mathematics, 09.11.2019 19:31
Spanish, 09.11.2019 19:31
History, 09.11.2019 19:31
Biology, 09.11.2019 19:31
History, 09.11.2019 19:31
History, 09.11.2019 19:31