The magnetic field at the center of a 1.40-cm-diameter loop is 2.50 mt . part a) what is the current in the loop?
part b) a long straight wire carries the same current you found in part a. at what distance from the wire is the magnetic field 2.50 mt ?

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s

The ability to make things happen is also called a. heat b. force c. matter d. energy