Physics, 02.04.2020 19:49 summerjoiner
You have been asked to design a "ballistic spring system" to measure the speed of bullets. A spring whose spring constant is k is suspended from the ceiling. A block of mass M hangs from the spring. A bullet of mass m is fired vertically upward into the bottom of the block. The spring's maximum compression d is measured from its initial suspended position. a. Find an expression for the bullet's initial speed vB in terms of m, M, k, and d. What quantity is conserved in an inelastic collision? Subsequently the block hits a spring on a frictionless surface. What quantity is conserved in this collision? b. What was the speed of a 5.0 g bullet if the block's mass is 2.0 kg and if the spring, with k = 50 N/m, was compressed by 10 cm? c. What fraction of the bullet's initial kinetic energy is "lost"? Where did it go?
Answers: 2
Physics, 22.06.2019 15:30
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
Answers: 1
Physics, 23.06.2019 00:50
Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?
Answers: 2
Physics, 23.06.2019 03:00
There are 3 ways heat can be transferred: through solids, called , through liquids and gases , called , and through electromagnetic waves, called
Answers: 1
You have been asked to design a "ballistic spring system" to measure the speed of bullets. A spring...
Health, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Physics, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Biology, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30
Social Studies, 19.07.2019 02:30
Mathematics, 19.07.2019 02:30