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valentinak56 [21]
3 years ago
13

An object moves in simple harmonic motion with amplitude 15m and period 4 minutes. At time t=0 minutes, its displacement from re

st is , and initially it moves in a negative direction. Give the equation modeling the displacement d as a function of time t
Mathematics
1 answer:
leva [86]3 years ago
4 0
No idea
Step by step explanation
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A car travels a distance on a road of 12.42 miles at a slope of 6.4%. The car has a maximum speed of 203 mph. Assume the car wil
Neko [114]

Answer:

4 mins 31 seconds

Step-by-step explanation:

Maximum speed is 203 mph equivalent to

203*\frac {5280}{3600}=297.73 ft/s

Time taken to attain maximum speed, t=\frac {v}{a} where v is velocity and a is acceleration hence

t=\frac {297.73}{2.93}=101.6155 s

The distance traveled when at top speed

d=\frac {v^{2}}{2a}=\frac {(297.73)^{2}}{2*2.93}=15127.16 \approx 15127.2 ft

Total distance is provided as 12.42 miles converted to ft is 12.42*5280=65577.6 ft

Total distance-distance moved to attain maximum speed will be

65577.6 ft-15127.2 ft=50450.44 ft

Time taken during maximum speed

t=\frac {50450.44}{297.73}=169.45 s

Total time=101.6155 s+169.45 s=271.06 s

271.06/60=4 mins 31 seconds

8 0
3 years ago
Read 2 more answers
If y=27 when x= 8 find y when x =11
Rina8888 [55]

Answer:

37 1/8

Step-by-step explanation:

The problem probably assumes direct variation

y=kx

IF so, then plug in the values and solve for k

27=k(8)

k = 27/8

y= (27/8)x.  Now let x = 11

y = (27/8)11 = 27(11)/8 = 37.125 = 37 1/8

y = 37 1/8

the problem is making some assumption about the relation between x and y.  The simplest assumption that's likely is direct variation,  that x and y are linearly related.  The graph is a straight line through the origin with slope = 27/8

6 0
3 years ago
Convert 0.11 to a percentage<br><br>NEED TO BE ANSWERED ASAP <br>I will award them the brainliest ​
barxatty [35]

Answer:

11%

Step-by-step explanation:

0.11*100=11%

necause 1%=1/100

3 0
3 years ago
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Asta made a fraction number line to help her multiply 3 times 4/5. Write 3 times 4/5 as the product of a whole number and unit f
Oduvanchick [21]
The answer is at the bottom.

3 times 4/5 = 3/1 times 4/5
so you get 12/5
the question says as the product of a whole number and unit fraction
so it is 2 2/5.

the answer is 2 2/5
4 0
3 years ago
Ach value.<br> 14. f(2-k)
lord [1]
Ach value? what is that so i can understand and help you
8 0
3 years ago
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