What is the difference between mechanical waves and electromagnetic waves?

A 6.4-N force pulls horizontally on a 1.5-kg block that slides on a smooth horizontal surface. This block is connected by a horizontal string to a second block of mass m2=0.

The pages of a book are numbered 1 to 200 and each leaf is 0.10mm thick. If each cover is 0.20mm thick, what is the thickness of the book?

A car travels 10 miles East in 30 minutes. What is its velocity in miles per hour? A) 20 miles per hour East B) 3 miles per minute East C) 0.333 miles per hour East D) + or - 20 miles per hour depending on direction

009 Three liquids are at temperatures of 14 ◦C, 25◦C, and 33◦C, respectively. Equal masses of the first two liquids are mixed, and the equilibrium temperature is 16◦C.

How would you explain social control to someone who has no idea about our society?

The momentum of an isolated system is conserved A) only in inelastic collisions. B) only in elastic collisions. C) in both elastic and inelastic collisions

Which of the following is not an ethical consideration of social research? a. protecting the anonymity of the participants b. creating a safe environment for research c. using research to reform society d.

Which event occurs after erosion of earth's surface

In your own words, compare and contrast transverse and longitudinal waves. Be sure to include at least one similarity and one difference.

A student went to a hill station early in the morning, he could hear the echo of his clap after 0.1 second. When he went to the same place in the afternoon, he could not hear the echo at all, explain the reason for his changed behaviour.