Question

A 10MHz transducer makes an angle of 45° relative to the direction of blood motion. A 1.4kHz Doppler shift is detected. Calculate the blood velocity. What is the direction of the blood flow? Calculate the error percentage if the angle is incorrect by 3°.

Answer #1

Angle of Ballista: 45 degree
Please calculate the
initial velocity
Maximum height
Maximum range
Percent error calculations for
a. Initial velocity
b. Maximum height
c. Maximum range
Height: 1.3m
Trial
1
2
3
Average
Range
3.023
3.035
3.015
3.024
Time
.22 s
.21s
.22
0.22s
Angle of Ballista: 45 degree

A projectile has an initial velocity of 45 m/s at an angle of
53o with respect to the horizontal and begins at ground
level.
a. What are the x and y components of the projectile’s initial
velocity?
b. What is the maximum height of the projectile?
c. How far away from where it begins does the object strike the
ground?
d. What is the magnitude and direction of the projectile’s velocity
at t= 3 s?
e. What is the displacement...

A spool of thread has rolled under the bed! Fortunately, you get
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thread. The moment of inertia of a homogeneous, full cylinder
about
Its axis of symmetry is: ? = (1/2) ?? ^ 2. The moment of inertia of
the whole spin about the axis of rotation is: ???? = 15?? ^ 2. The
friction between the reel and the floor is ?? = 0.25
(static) and ?? = 0.2 (dynamic).
You start pulling the thread...

ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
A 7.15 kg
bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
A car weighing 1260 kg
moves at a speed of 49.5 km/h.
5:
The graph shows the ?-directed force
??...

MATHEMATICS
1. The measure of location which is the most likely to
be
influenced by extreme values in the data set is the a. range
b.
median c. mode d. mean
2. If two events are independent, then a. they must be
mutually
exclusive b. the sum of their probabilities must be equal to one
c.
their intersection must be zero d. None of these alternatives
is
correct. any value between 0 to 1
3. Two events, A and B,...

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