Light is incident from air on the surface of a glass slab, which has an index of refraction of 2.5 In the air the light beam makes an angle of 40 degree with the normal to the surface. What is the angle of the beam with the normal in the glass?​

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?