Calculate the refractive index of the substance if the speed of light in the medium is 210,000 km/s.

2.43

1.43

0.7

1.89

What are the equipment requirements for windshields and side windows

A tank containing liquid butane and one containing liquid propaneare sitting adjacent to one another. Each tank is equipped with a regulator with a pressure gauge. Classify these statements as true or false.

A capacitor stores 7.6 * 10-11 C when the electric potential difference between the plates is 5.8 V. What is the electric potential energy stored in the capacitor? Answ: 2.2 * 10-10 J

Cati ani trebuie sa ai ca sa iei permisul?

Which of the following plays a major role in creating deep ocean currents

While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 88.0 N toolbox, causing it to start sliding downward, starting from rest. If it starts 4.

Suppose that the centripetal force acting on an object in circular motion were doubled to a new value, and the object remained in a circular path with the same radius. How would the motion be affected?

2. Air at a temperature of 20 ºC passes through a pipe with a constant velocity of 40 m/s. The pipe goes through a heat exchanger in which hot gases outside the pipe heat up the air to 820 ºC.

What is the thermometer

In which natural cycle must an important gas in Earth's atmosphere be fixed before plants can use it? a. sulfur cycle b. carbon cycle c. nitrogen cycle d. oxygen cycle