Atruck is traveling 70.0 kph away from you. the driver is blowing the horn, which has a frequency of 400 hz. the air temperature is 25ác. what is the observed frequency of the horn?

What should the power status of a circuit be when measuring resistance with an ohmmeter?

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem