The distance time graph for four objects is shown below:
four graphs labeled object a, object b, object c, and object d are shown with distance in miles on y axis and time in hours on x axis. the first graph is a straight slanting line passing through origin, the second graph is a graph consisting of several slanting and horizontal straight lines, the third graph is a curved line passing through the origin and going up, and the last graph is a curved line going up and passing through a point on the y axis
which object is moving at constant speed?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

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)