Acceleration occurs when an object changes its ____________________ or ____________________ or both.
2 answers:
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Answer
given,
mass of the shell = 87 g = 0.087 Kg
speed of the muzzle = 853 m/s
mass of the helicopter = 4410 kg
A burst of 176 shell fired in 2.93 s
resulting average force = ?
momentum of the shell = m v
= 0.087 x 853
= 74.21 kgm/s
momentum of 176 shell is = 176 p
= 176 x 74.21
= 13060.96
momentum of helicopter = - 13060.96 kgm/s
amount of speed reduce a =
a=
a = 2.96 m/s²
velocity = \dfrac{2.96}{2.93}
v = 1.01 m/s
Answer:
The frequency of this photon is
(D) is correct option.
Explanation:
Given that,
Excited states,
We need to calculate the wavelength
Using formula for energy
We need to calculate the frequency
Using formula of frequency
Where, E =energy
Hence, The frequency of this photon is