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AveGali [126]
3 years ago
5

b. Comparing and Contrasting Compare the change in atmospheric pressure with elevation to the change in water pressure with dept

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Physics
1 answer:
olasank [31]3 years ago
4 0

Answer:

fftgjjjuhgybcrgjjuhg ui

Explanation:

trggfyh

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Calculate the acceleration using the formula acceleration = (final velocity - initial velocity) / time.
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Answer:

10 km/hr/s

Explanation:

The acceleration of an object is given by

a=\frac{v-u}{t}

where

v is the final velocity

u is the initial velocity

t is the time

For the car in this problem:

u = 0

v=60 km/h

t = 6 s

Substituting in the equation,

a=\frac{60 km/h-0}{6s}=10 km/h/s

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3 years ago
Copy and Complete the Sentence
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Answer:

When something happens, energy is changed from one form into another.

Explanation:

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2 years ago
The Kapandu boys dormitory in the UPNG is going up in flames. Rachel, a former student of Physics, who
Tom [10]

Answer:

<em>1108.464 N of force</em>

Explanation:

diameter of water hose = 70 cm = 0.7 m

radius = 0.7/2 = 0.35 m

volumetric flow rate Q = 420 L/min

1 L = 0.001 m^3

1 min = 60 s

therefore,

Q = 420 L/min = (420 x 0.001)/60 = 0.007 m^3/s

Area A of fire hose = πr^{2} = 3.142 x 0.35^{2} = 0.38 m^2

<em>From continuity equation, Q = AV</em>

where V1 is the velocity of the water through the pipe, and A1 is the area of the pipe.

Q = A1V1

0.007 = 0.38V1

V1 = 0.007/0.38 = 0.018 m/s.

Nozzle diameter = 0.75 cm = 0.0075 m

radius = 0.00375

Area = πr^{2} = 3.142 x 0.00375^{2} = 4.42 x 10^{-5} m^2

velocity of water through the nozzle will be

V2 = Q/A2 = 0.007 ÷ (4.42 x 10^{-5}) = 158.37 m/s

From

<em>F = ρQ(v2 - v1)</em>

Where,

F = force exerted

p = density of water = 1000 kg/m^3

F = 1000 x 0.007 x (158.37 - 0.018) = <em>1108.464 N of force</em>

4 0
3 years ago
A 3.7-kg object is acted on by two forces. One of the forces is 11 N acting toward the
ololo11 [35]

Answer:

7.3 newtons to the west

Explanation:

3.7kg × 11a - 3.7kg × ? = 3.7n

4 0
3 years ago
Plsase help meeeeeee​
Law Incorporation [45]

Answer:

It's A

Hope this helped

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