A truck with a mass of 400 kg is moving down the highway at a constant speed. When the driver sees a red light, the brakes are used to slow down at an acceleration of −0.7 m/s2. Using the equation F = ma, what force must the brakes exert for the truck to slow at that rate? Round your answer to the nearest whole number.

The brakes must exert a force of

spectral lines lyman is one set

so easy. just google the electromagnetic waves and it’ll pop up.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.