The momentum of the brick is 15.84 Kg m/s.
We have a 1.6 kg brick parachuting straight downward.
We have to determine its Momentum.
<h3>What is Linear Momentum ?</h3>
The linear momentum of a body of mass M moving with velocity v is -
p = mv.
According to the question -
Mass = 1.6 Kg
Velocity = 9.9 m/s
Therefore -
p = 1.6 x 9.9 = 15.84 Kg m/s
Hence, the momentum of the brick is 15.84 Kg m/s.
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Answer:
option 4
Explanation:
Light's velocity in air ( 3 × 10^8 m/s ) is much greater than sound's velocity in air ( 343 m/s )
Hence due to difference in velocities , during lightning light is seen first & sound is heard later
Sometimes (EX:<span> HCl is a covalent substance, however, when it is dissolved it is ionized to form hydrochloric acid).</span>
Answer:
wavelength = 0.968 m
frequency = 39.02 Hz
Explanation:
given data
mass = 0.0127 kg
force = 9.33 N
length = 1.93 m
to find out
wavelength and Frequency
solution
we know here linear density that is
linear density = .........1
linear density =
linear density = 6.5803 × kg/m
so
wavelength will be here
wavelength = ..............2
here n = 4 for forth harmonic
wavelength =
wavelength = 0.968 m
and
frequency will be for 4th normal mode of vibration is
frequency = ..........3
frequency =
frequency = 1.036269 × 37.654594
frequency = 39.02 Hz