What can be said about the sign of the work done by the force f⃗ 1?

A thin lens is made from a material with refractive index of 1.20. This lens may be used in either air (n = 1.00) or water (n = 1.33). Which of the following is true? A.

Can science answer every question

What is the index of refraction of a refractive medium if the angle of incidence in air is 30 and the angle of refraction. Is 15

A flask of water rests on a scale that reads 100N. Then, a small block of unknown material is held completely submerged in the water.

Which number should be placed in the blank before o2 to balance the equation? n2 ___o2→2no2?

The first excited state of a particular atom in a gas is 5.2 eV above the ground state. A moving electron collides with one of these atoms, and excites the atom to its first excited state.

How do your teeth work as a wedge?

According to the Big Bang theory timeline, all matter and energy was compressed into a very small volume at an extremely high temperature. a. True b. False

Sal is thinking about making a positive change in his life. But there are risks involved. Which is the healthiest way that Sal can approach these risks?

The push of energy given to electrons in a circuit is known as what?