Laser light is high powered, directional, coherent, and has a double wavelength. true or false.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Which of these metals are magnetic?