Answer:
answer is friction. MCQ A is answer
Answer:
To be able to eat the food readily available in the environment
Answer:
Check the explanation
Explanation:
The beat frequency is
df = f2 - f1
the wavelength is
lamda1 = (v/f1)
and lamda2 = (v/f2)
where v = 340 m/s,f1 = 25.0 kHz and f2 = 20.0 kHz
As we know that spring force is given by

here we know that
F = 700 N
also we know that
k = 3500 N/m
now from above equation we will have

now we will have


so here we can say that end of the spring will be compressed by 20 cm
Answer:
Hope the above picture might help you :)