Will mark brainiest if the correct work is the walker family is building a cabin for vacationing. mr. walker and his son terrell have erected a scaffold to stand on while they build the walls of the cabin. as they stand on the scaffold terrell pulls on a rope attached to a support beam with a force of 400 newtons (n) at an angle of 65 with the horizontal. mr. walker pulls with a force of 600 newtons at an angle of 110 with the horizontal. what is the magnitude of the combined force they exert on the log?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

The slope of a velocity time graph over any interval of time gives the during that interval

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?