A light with a second-order dark band forms a diffraction angle of 20.0°. The diffraction grating has 200.0 lines per mm. The wavelength of the light, to the nearest whole number, is nm.

What is the weight of a cat that has a mass of 7.02kg? 73.4N 72.5N 68.8N 70.2N

How does the heat energy from the sun reach us through the vacuum of space? a. conduction b. radiation c. convection d. none of the above choices are valid

Will two sounds of 50 db constitute a sound of 100 db. Explain

What acceleration is produced by a force of 2000 N and 1000 kilogram car

The scientific method of determining the age of the solar system a. uses the detailed record of impacts on the moon to determine the age of the solar system. b. shows that the age of the solar system is nearly 14 billion years. c.

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correct? - The net acceleration of the block is directed straight down.

A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Explain how latitude determines wind patterns

What is the difference between contact forces and forces that act through a force field?

Suppose two parallel-plate capacitors have the same charge Q. but the area of capacitor 1 is A and the area of capacitor 2 is 2A. 1.