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aev [14]
3 years ago
15

Please answer if you know :)

Physics
1 answer:
marysya [2.9K]3 years ago
4 0

Answer1. :(20/25)*200/*25 2. Increase the radius or apply the force perpendicular to the wrench

Explanation:torque =force*distance*sine of the angle between applied force and axis of wrench

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Ty is three years old and as a result of a “stomach bug" has been vomiting for
nataly862011 [7]

Answer:

Ty's blood is slightly alkaline

Explanation:

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2 years ago
A friend of yours is loudly singing a single note at 412 Hz while racing toward you at 23.0 m/s on a day when the speed of sound
kobusy [5.1K]

Doppler Effect is required to solve the problem. The Doppler effect is the change in the perceived frequency of any wave movement when the emitter, or focus of waves, and the receiver, or observer, move relative to each other. The general formula of observed frequency, due to Doppler's effect is as follows,

f_0 = (\frac{v+v_0}{v-v_s})f_s

f_0 = Frequency observed by observer

v = Velocity of Sound

v_0 = Velocity of observer

v_s = Velocity of source

f_s = Frequency of source

PART A) Replacing our values we have that,

f_0 = (\frac{v+v_0}{v-v_s})f_s

f_0 = (\frac{344+0}{344-23})(412)

f_0 = 441.52Hz

PART B) Here the same procedure is performed but this time repeated in the opposite direction.

f_0 = (\frac{v+v_0}{v-v_s})f_s

f_0 = (\frac{344+23}{344-0})(420)

f_0 = 448.08Hz

4 0
3 years ago
a 15kg television sits on a shelf at a height of 0.3 m how much gravitational potential energy is added to the television when i
DedPeter [7]

Answer:

<h2>103 Joules</h2>

Explanation:

In this problem we are required to find the potential energy possessed by the television

Given data

mass of television m = 15 kg

height  added above the ground, h= 1-0.3 = 0.7 m

acceleration due to gravity g = 9.81 m/s^2

apply the formula for potential energy we have

P.E= m*g*h

P.E = 15*9.81*0.7 = 103 Joules

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3 years ago
What is the speed of a car which travels 45 miles in 3 hours?
Katen [24]

Answer:

15 mph

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45/3=15

6 0
1 year ago
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<span>Forecasting the time of, location, and magnitude of a seismic event does not prevent
the event from happening, but it can help us reduce the destruction caused by
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3 years ago
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