Two people hold opposite ends of a rope of length of 10.00 m and mass 156 g. One person exerts a force of magnitude 40.0 N and the rope is stationary. A brief interval Dt after one person initiates a pulse the second person does the same. The two pulse meet 1.0 m away from the center of the rope. What was the time interval Dt between initiation of the pulses

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m