I. las coordenadas de los puntos inicial y final del vector ��⃗ son (4;3) m y (-6;3) m respectivamente. Determinar:a. Las componentes del vector. b. El módulo. c. La dirección o rumbod. Los ángulos directores. e. El vector en fusión de los vectores base. f. El vector unitario

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)

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.