An incident ray traveling in a slower medium strikes a boundary with a faster medium. what happens when its angle of incidence is greater than the critical angle?

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?