Answer:
the answer is true
I am in Health
The mechanical energy consisting of potential and kinetic energy is:
0.001 x [ (acceleration of gravity x height) + (1/2) (speed)² ] .
Express your answer to two significant figures and include the appropriate units.
Answer:
Explanation:
given,
Speed of sound = 343 m/s
frequency of horn = 260 Hz
the friend is approaching, the frequency is increased by the Doppler Effect. The frequency is 266 Hz
using formula
the speed of friends approaching is equal to
B. lunar breccias.
C. silicates.
D. highlands.