3 years ago

Rank these significant figures numbers from the least to the most

Physics

1 answer:

Mumz [18]3 years ago

8 0

Answer:

0.006<357<700.003<6010<9256.0<9520.00

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A 426.7 Hz tuning fork is resonating in a closed tube on a warm day when the speed of sound is 346 m/s.

Grace [21]

Answer:0.8 meter

Explanation:

Frequency=426.7hz

Velocity=346m/s

Length =velocity ➗ frequency

Length=346 ➗ 426.7

Length =0.8

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3 years ago

How does the Law of Conservation of Energy explain why ice cubes melt in water?

scoray [572]

Answer:

because it is an ice that is why it melt

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3 years ago

Classify the statements as correct or incorrect

umka2103 [35]

Explanation:

1. Incorrect.

2. correct.

3. incorrect.

4. correct.

5. correct.

6. incorrect.

8 0

2 years ago

a roller coaster accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. whats the acceler

harkovskaia [24]

Answer:

vi=6m/s

vf=70 m/s

t=4s

a=vf-vi/t=16m/s2

Explanation:

6 0

3 years ago

Richard needs to fly from san diego to halifax, nova scotia and back in order to give an important talk about mathematics. on th

kondor19780726 [428]

When plane is going towards Halifax the speed of wind is in the direction of fly

so overall the net speed of the plane will increase

while when he is on the way back the air is opposite to flight so net speed will decrease

now the total time of the journey is 13 hours

out of this 2 hours he spent in mathematics talk

so total time of the fly is 13 - 2 = 11 hours

now we have formula to find the time to travel to Halinex

$t_1 = \frac{d}{v + 50}$

time taken to reach back

$t_2 = \frac{d}{v - 50}$

now we have total time

$T = t_1 + t_2$

$11 = \frac{d}{v - 50} + \frac{d}{v + 50}$

here d= 3000 miles

$11 = \frac{3000}{v - 50} + \frac{3000}{v + 50}$

$3.67 * 10^{-3} = \frac{2v}{v^2 - 2500}$

$v^2 - 2500 = 545.45v$

solving above quadratic equation we will have

$v = 550 mph$

so speed of plane will be 550 mph

3 0

3 years ago

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