Two masses, ma = 34.0 kg and mb = 40.0 kg , are connected by a rope that hangs over a pulley (as in the figure (figure the center of the pulley is hollowed out so that you may assume all the mass of the pulley is in the rim. the radius of the pulley is 0.381 m and the mass of the pulley is 3.10 kg . initially ma is on the ground and mb rests 2.50 m above the ground. g = 9.81 m/s2 .if the system is released, use conservation of energy to determine the speed of mb just before it strikes the ground. assume the pulley bearing is frictionless.

Me plz i don’t know the charges on each of these

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational