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AysviL [449]
3 years ago
6

Waves must exhibit a constant phase difference for interference to occur. Please select the best answer from the choices provide

d T F
Physics
1 answer:
zalisa [80]3 years ago
8 0
True is what it is/ ,,,,,,,,,,,,,
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while performing a sonogram, to minimize risk to the fetus, which imaging mode trade off would be most appiclable.
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Answer: Use M-mode instead of pulse-wave Doppler to measure the fetal heart rate.

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4 years ago
what is the magnitude of the gravitational force between two 5.0-kilogram masses separated by a distance of 5.0 meters?
Vladimir79 [104]
6.7x10^-11n is your answer
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3 years ago
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A 19.0-kg cart is moving with a velocity of 7.20 m/s down a level hallway. A constant force of -13.0 N acts on the cart and its
gulaghasi [49]

Answer:

a. -369.36J

b. -123.9J

c. 9.52m

Explanation:

From the expression for kinetic energy

K. E=1/2mv^2

Since the mass is constant, but the velocity changes. Hence the change in kinetic energy is

K.E=1/2*19(3.6²-7.2²)

K.E= -369.36J

b. to determine the workdone by the force,we determine the distance moved.

But the acceleration is from

F=ma ,

a=f/m

a=-13/19

0.68m/s²

the distance moved is

s=v²/2a

s=3.6²/2*0.68

s=9.52m

Hence the work done is

W=force * distance

W=-13*9.52

W=-123.9J

d. the distance moved is

s=v²/2a

s=3.6²/2*0.68

s=9.52m

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3 years ago
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If a bar magnet is broken into two pieces, each of the resulting pieces
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They will become identical as if they were never broken
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4 years ago
Explain the following (using the concepts of moment, center of gravity and stability.) a) Racing cars are low, with wide wheels.
LUCKY_DIMON [66]

Answer:

b

Explanation:

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3 years ago
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