Asmall diameter lead ball and a large diameter rubber ball are dropped from a tower. the balls hit the ground at the same time. what conclusion can be drawn about the force of gravity?
a) no conclusion can be drawn without more information about the two balls.
b) the rubber ball must have a greater gravitational force because it is larger.
c) the lead ball must have a greater gravitational force because it is more
dense.
d) they must have the same gravitational force because they hit the ground at
the same time.

Which of the following would not be taken into consideration when describing the quality of a sound

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)