Ihad a problem solving for part b of this question: objects with masses of 110 kg and a 410 kg are separated by 0.380 m. (a) find the net gravitational force exerted by these objects on a 30.0-kg object placed midway between them. (b) at what position (other than infinitely remote ones) can the 30.0-kg object be placed so as to experience a net force of zero?

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.

In a system, when potential energy decreases, then entropy also decreases. true false

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .