Question 12 (5 points) What is the purpose of a tuner in a radio?
The tuner converts inaudible high-frequency signals into sound waves that can
be heard.
The tuner converts a direct current into a high-frequency alternating current.
2 2.
The tuner detects a wide range of broadcast frequencies.
The tuner selects only the signal of a specific frequency and rejects the rest.

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to. in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2