refractive index of media a b c and d are given as 1.33,2.52,1.44 and 1.89 respectively using the above data answer the following question a) Identify the medium with highest optical density, b) Identify the medium with lowest optical density, c) Identify the medium in which the speed of light will be maximum d)Identify the medium in which the speed of light is minimum

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?