Answer:
1333.34 kg
Explanation:
Given that,
The mass of the gun, m = 8 kg
Speed of the bullet, V = 50 m/s
The recoil speed of the gun, v = -0.3 m/s
We need to find the mass of the bullet. Using the conservation of momentum to find it. Let M is the mass of the bullet.
So, the mass of the bullet is 1333.34 kg.
Answer:
The presence of dwarf galaxies around the Milky Way supports what picture that our galaxy was formed by a coming together or combination of smaller systems
<h2>
Answer: D. 70.0 J</h2>
Explanation:
3.00 m + 4.00 m = 7.00 m x 10.0 N = 70.0 J
Answer: 17.59 Hz and 4.87 m
Explanation:
The fundamental frequency of the sound from an open-open pipe is given as
f= 
where v= 343 m/s
L= 32 feet= 
= 9.75 m
So,
f= 
= 17.59 Hz
The length of open-closed tube is related to frequency by formula
f= 
or L=
L= 
L= 4.87 m
2,000 j(apex)
i hope this was right
