An automobile with a radio antenna 1.0 m long generates an emf, v1, since it is traveling at 100.0 km/h in a location where the earth's horizontal magnetic field is 5.5x10-5t. at some time, the radio antenna doubles in length and the car begins traveling at a quarter of the original speed. what is the ratio of the new emf generated, v2, to the original emf. v1? 0.5v1 0.125 v1 111 0.75v1

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.