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egoroff_w [7]
3 years ago
13

can someone help me answer this correctly in the next 20 minutes? I’ll give out a brainliest if you can answer it right :)

Physics
1 answer:
gavmur [86]3 years ago
7 0
<h3>Answer: 255 meters</h3>

===================================================

Explanation:

Divide 1.5 over 2 to get 1.5/2 = 0.75

In 0.75 seconds, the sound wave goes from the person's mouth to the cave wall. Then another 0.75 seconds pass by and the echoed sound wave reaches the person's ear. So we have a total duration of 0.75+0.75 = 1.5 seconds.

Let's just focus on one leg of the trip.

The sound wave travels at a speed of 340 m/s and goes for 0.75 seconds

Meaning that,

distance = rate*time

distance = (340 m/s)*(0.75 s)

distance = (340*0.75) m

distance = 255 m

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Por una resistencia de 10 Ω fluyen 5A. ¿Cuál será la diferencia de potencial que se le debe aplicar a la resistencia?
ra1l [238]

Answer:

V = 50 volts

Explanation:

Given that,

Resistance, R = 10 ohms

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We need to find the potential difference across the circuit. We know that,

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Put all the values,

V = 5 × 10

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8 0
3 years ago
Part K Find the y-component of the stone's velocity when it is 8.00 m below your hand
Romashka-Z-Leto [24]

The y-component of the stone's velocity when it is 8 m below the hand is 14.86 m / s

v² = u² + 2 a s

s = Displacement

u = Initial velocity

a = Acceleration

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v² = 64 + 156.8

v = √ 220.8

v = 14.86 m / s

The equation used to solve the problem is an equation of motion. These equations are designed to locate an object in motion using components such as velocity, displacement, acceleration and time.

Therefore, the y-component of the stone's velocity is 14.86 m / s

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brainly.com/question/5955789

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4 0
1 year ago
Water is drawn from a well in a bucket tied to the end of a rope whose other end wraps around a solid cylinder of mass 50 kg and
sleet_krkn [62]

Answer:

\alpha=78.4\ rad.s^{-2}

Explanation:

Given:

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  • diameter of cylinder, d=0.25\ m
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<em>When the bucket is released to fall in the well, it fall under the acceleration due to gravity.</em>

We have formula for angular acceleration as:

\alpha=\frac{g}{r}

where:

g = acceleration due to gravity

r = radius of the cylinder

\aplha=\frac{9.8}{0.125}

\alpha=78.4\ rad.s^{-2}

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sattari [20]
The horizontal change between two points on a graph is called the 'run'.

The vertical change between two points is called the 'rise'.
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weight less on moon than on earth.

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low in orbit.

zero at a point between earth and moon

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3 years ago
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