Astronauts on a space station decide to use Earth's magnetic field to generate electric current. Earth's B→ field in this region has a magnitude of 3.0 × 10⁻⁷ T. They have a coil that rotates 90° in 1.2 s. The area inside the coil measures 5000 m².
Estimate the number of loops needed in the coil so that during that 90° turn it produces an average induced emf of about 120 V. Express your answer using two significant figures.

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease