A circular wire coil of radius 25 cm and 20 turns is sitting in a perpendicular magnetic field of 0.20 T. If the coil is rotated 90°, what is the magnitude of the change in magnetic flux through the loop? a) 0 Wb b) 1.6 Wb c) 0.080 Wb d) 0.80 Wb e) 0.040 Wb

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy