Answer:
f' =1064.1025 Hz
Explanation:
We know that from doppler's effect
f'= observed frequency
f= actual frequency =1000 Hz
v= velocity of sound waves = 332 m/s
v_o= velocity of observer =0
v_s= velocity of source. ( let velocity of car be 20 m/s)
therefore,
f' =1064.1025 Hz
Answer:
572
Explanation:
Got it right on Acellus, you take the velocity and divide it by 4 times the length.
Answer:
The position of the sun affects the size of a shadow. A person or object blocks more light when the sun is low in the sky. More blocked light makes shadows longer. ... The sky turns dark when your part of Earth spins away from the sun.
Explanation:
Answer:
a. Quadruped arm and opposite leg raise
Explanation:
A client experiences difficulty in performing the prone iso-abs exercise, because the regression is Quadruped arm and opposite leg raise.
Iso-abs exercise is a beginner exercise that stabilizes the core muscle. Press the hips together. Slowly lift the pelvis from the floor til the back is straight. Carry this position for the desired time or til proper form bcomes difficult to maintained.
