It is the 3rd Law. Every force in nature occurs in equal measure but opposite directions
Answer: c
Explanation:Use equation for speed: V=S/t
S=50 km -distance
t=15 min=0.25h -time
V=?
------------------------
V=S/t
V=50km/0.25h
V=200km/h
Answer:
Yes the statement is correct
Explanation:
The de-broglie relation is mathematically represented as
where
p is momentum of the system
From the relation we can see that the wavelength is inversely proportional to the momentum of the particle.
Answer:
527 Hz
Solution:
As per the question:
Beat frequency of the player,
Frequency of the tuning fork, f = 523 Hz
Now,
The initial frequency can be calculated as:
when
when
But we know that as the length of the flute increases the frequency decreases
Hence, the initial frequency must be 527 Hz
Answer:
If the net force on an object is zero, the momentum of the object will not change
Explanation: If the net force on an object is zero, the momentum of the object will not change. If a non-zero net force acts on the object, the magnitude of its momentum could decrease, increase, or remain constant