8) Two blocks of masses ml and m2 are released from the top of two frictionless inclined planes of the same height making 30° and 60° angles with the horizontal direction, respectively. Which of the blocks is going faster when it reaches the bottom of its respective incline? Select one:

A There is not enough information to answer the question.

B. Both blocks have the same speed at the bottom.

C. Block 2 is faster.

D. We must know the actual masses of the blocks to answer

E. Block 1 is faster.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

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)

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two