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Butoxors [25]
2 years ago
14

Naomi is taking a train from DC to New York which is 360km apart. If the train is traveling at an average speed of 32 meters per

second, how much time will it take Naomi to get to new work
Physics
1 answer:
rodikova [14]2 years ago
4 0

Answer:

11250 seconds or 187.5 mins

Explanation:

The formula to be used here is that of speed.

Speed (in m/s) = distance (meter) ÷ time (secs)

The speed provided is 32 meters per second

The distance provided will have to be converted to meters; 360 km = 360 × 1000 = 360000 meters

Thus,

32 = 360000 ÷ time

time = 360000 ÷ 32

time = 11250 seconds or 187.5 mins

It will take Naomi 11250 seconds to get to New York

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A research vessel is mapping the bottom of the ocean using sonar. It emits a short sound pulse called "ping" downward. The frequ
Svetradugi [14.3K]

Answer:

d = 4180.3m

wavelengt of sound is 0.251m

Explanation:

Given that

frequency of the sound is 5920 Hz

v=1485m/s

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7 0
3 years ago
A sphere of volume 1.20×10−3m3 hangs from a cable. When the sphere is completely submerged in water, the tension in the cable is
KATRIN_1 [288]

Answer:

B = 62.9 N

Explanation:

This is an exercise on Archimedes' principle, where the thrust force equals the weight of the  liquid

         B = ρ g V

write the equilibrium equation

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         B = W- T               (1)

use the density to write the weight

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substitute in  1

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calculate

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2 years ago
You buy a 75 watt light bulb. the label means that
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The label means that the bulb will consume 75 joules of electrical energy in 1 sec
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