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forsale [732]
1 year ago
5

A train leaves Little Rock, Arkansas, and travels north at 85 kilometers per hour. Another train leaves at the same time and tra

vels south at 85 kilometers per hour.
How long will it take before they are 680 kilometers apart?
Mathematics
1 answer:
Alchen [17]1 year ago
6 0

Answer:

4hours

Step-by-step explanation:

1hour =85+85

=170km/h

time= distance÷

speed=170km/h

680÷170=time

=4h

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A sensor output was acquired for 32 seconds at a rate of 200 Hz and spectral analysis was performed using FFT. If the data set w
VashaNatasha [74]

Complete Question

A sensor output was acquired for 32 seconds at a rate of 200 Hz and spectral analysis was performed using FFT. If the data set was split into 5 segments (each 6.4 seconds long), what is the resulting:

a)F minimum

b) F maximum

c) Frequency resolution

Answer:

a) Fmax=100Hz

b) Fmin=0Hz

c) F_r=0.0313

Step-by-step explanation:

From the question we are told that:

Time t=32sec

FrequencyF=200Hz

Segments \mu=5

Generally the equation for Frequency Range is mathematically given by

Fmax=\frac{F}{2}

Fmax=100Hz

Therefore

a) Fmax=100Hz

b) Fmin=0Hz

c)

Generally the equation for Frequency Resolution is mathematically given by

F_r=\frac{F}{N}

Where

N=The Total dat points

N=Sampling Frequency *Time

N=200*32

N=6400

Therefore

F_r=\frac{200}{6400}

F_r=0.0313

6 0
3 years ago
Help I will thank you
DENIUS [597]
The answer to the problem is 12. 2 times 3 is 6. 18 divided by 6 is 3 and 3 times 4 is 12.
8 0
3 years ago
Read 2 more answers
What is the product (2x-1)(x+4)
Ostrovityanka [42]
2x(x+4)-1(x+4)
2x^2+8x-x-4
2x^2+7x-4
8 0
3 years ago
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At last Friday’s football game there were a total of 573 fans in attendance, including students and non-students. Let x represen
lbvjy [14]

Answer:

y=−x+573, x+y=573

Step-by-step explanation:

3 0
3 years ago
the area of a pentagon increased by 27 is the same as four times the difference of area and 15. what is the area of the pentagon
AfilCa [17]
This can be written as:
a+27=4(15-a)
now to work it out
a+27=4(15-a)
a+27=60-4a
4a+27=60
4a=33
a=8.25

<span>hope this helps :)</span>
6 0
3 years ago
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