Answer:
Explanation:
Given:
- original frequency of the wave,
- velocity of the blood stream moving away,
<u>Doppler shift is given as:</u>
where:
s = velocity of ultrasound in blood = 
velocity of sound source towards the observer
velocity of the observer away from the source
Therefore the shift in frequency:
Answer:
0.011 N-m
Explanation:
Given that
The mass of a solid cylinder, m = 30 kg
The radius of the cylinder, r = 0.18 m
The acceleration of the cylinder, 
It rotates about an axis through its center. We need to find the torque acting on the cylinder. The formula for the torque is given by :
Where
I is the moment of inertia of the cylinder,
For cylinder,
So,
So, the required torque on the cylinder is 0.011 N-m.
The direction of the vector with respect to the x-axis
is the angle whose tangent is (4/5) .
Arctan(4/5) = 38.7° counterclockwise from the x-axis.
I and II only it’s has multiple paths for the electricity to flow
Given:
u = 6.5 m/s, initial velocity
a = 1.5 m/s², acceleration
s = 100.0 m, displacement
Let v = the velocity attained after the 100 m displacement.
Use the formula
v² = u² + 2as
v² = (6.5 m/s)² + 2*(1.5 m/s²)*(100 m) = 342.25 (m/s)²
v = 18.5 m/s
Answer: 18.5 m/s
