Light travels with a speed of 1.2 * 10^8 m/s in diamond . What is the refractive index of diamond "? ( speed of light in vaccum C =3*10^8 m/s )

Explain what happens at the saturation point when adding salt to water at room temperature.

Why does gravity have a lesser than grater effect on higher altitudes?

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station