Car A and Car B approach each other on the same road. Car A is driving 35.0 m/s, while Car B is driving 15.0 m/s. When Car A honks its horn, Car B hears a frequency of 1140 Hz. What is the frequency of Car A's horn when stationary? (Hint: 1140 Hz is the Doppler-shifted frequency.). (Speed of sound = 343 m/s) (Unit = Hz)

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

What is a possible result of higher air temperature caused by global warming

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)