The critical angle for total internal reflection at the boundary between an unknown substance and air is 24.4°. what is the angle of refraction in the air if light is incident on the boundary at an angle of 20.0°?

Genes can be turned on or turned off not all genes are active at one time true or false

What characteristic of water makes it the universal solvent?

Which scientist discovered the two radioactive elements radium and polonium?

If you don't have a seat belt on and the car is going at a constant rate but then the car stops. Which of newtons laws is this. Ps. I think it is the 1st or 3rd not sure though

A capacitor in an LC oscillator experiences a maximum potential difference of 88V and a maximum energy of 2002 uJ. At a certain instant the energy in the capacitor is 125 uJ.

13. Which best summarizes the change in number and size of microcontinents during the Proterozoic? a. the number of microcontinents increased and the size increased b. the number of microcontinents increased and the size decreased c.

What is the 3d model of oxygen molecule

If you need to drive from Dallas, Texas, to Salt Lake City, Utah, (about 1500 miles), and the speed limit is 60 miles per hour most of the way, what is the least amount of time you will need? A. 4 hours B. 25 hours C. 2.5 hours D. 90,000 hours

Which of the following statements about the Coriolis effect is correct? a. The Coriolis effect is not affected by wind speed. b. The Coriolis effect is weakest at the poles. c. The Coriolis effect does not affect wind direction. d.

What force would be needed to make a 10kg bowling ball accelerate down the alleyway with an acceleration of 3m/s2