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ivolga24 [154]
3 years ago
12

The old rubber boot has two leaks. The top of the boot is 0.3 m higher than the leaks. What is the velocity of the water coming

out through these leaks

Physics
1 answer:
Otrada [13]3 years ago
7 0

Answer:

Leak 1 = 3.43 m/s

Leak 2 = 2.42 m/s

Explanation:

Given that the top of the boot is 0.3 m higher than the leaks. 

Let height H = 0.3m and the acceleration due to gravity g = 9.8 m/s^2

From the figure, the angle of the leak 1 will be approximately equal to 45 degrees. While the leak two can be at 90 degrees.

Using the third equation of motion under gravity, we can calculate the velocity of leak 1 and 2

Find the attached files for the solution and figure

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Seismic waves are waves that move through the Earth as a result of an earthquake. True or false
gogolik [260]

Answer

True


Explanation.

Some parts of the earth are prompt to earthquakes, volcanic eruptions landslides and magma movements etc. All this may cause energy movements through the earth inform of a wave. These type of waves are called seismic waves.



6 0
3 years ago
Read 2 more answers
A vertical piston-cylinder device contains water and is being heated on top of a range. During the process, 63 Btu of heat is tr
jolli1 [7]

Answer:

The water would have a change in the energy of 50 BTU

Explanation:

  1. Under the assumption that the piston-cylinder system is a closed system, then the conservation law of the system would be: E_{in}-E_{out}=E_{change}, where E_{in} is all the energy that goes into the system, E_{out} is all the energy that leaves the system and, E_{change} is the change of the energy of the system.
  2. For this case the energy that is feeded to the system is heat: 63 BTU.
  3. There is two ways that energy is leaving this system: 8 BTU of heat as losses through the side walls and, 5 BTU of work done by the vapor on the piston.
  4. Then the change of energy of the system is: E_{change}=E_{in}-E_{out}=63 BTU-(8BTU+5BTU)=50BTU.
6 0
3 years ago
According to the law of conservation of mass, which of these is true.
dimaraw [331]
C because mass is how much space an object takes up
8 0
4 years ago
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. The wipers are triggered when the
lilavasa [31]

Answer:

R=803k\Omega

Explanation:

We have the following information,

V_0 = 12V\\V=10V\\c= 1.25*10^{-6}F\\t=1.8s

We apply the equation for capacitor charging the voltage across it,

V=V_0 (1-e^{-t/x})\\e^{-t/x}=1-(\frac{V}{V_0})\\-\frac{t}{Rc}=ln(\frac{V}{V_0})\\R=-\frac{t}{ln(\frac{V}{V_0})*c}

Replacing values,

R=-\frac{1.8}{ln(10/12)*1.25*10^{-6}}

R=803k\Omega

3 0
3 years ago
Can somebody help please !!!!
Nataly [62]

Vector A is of magnitude 12 m and it makes an angle of 37 degree with Y axis

So here we can say that

\frac{A_x}{A} = sin37

A_x = A sin37

A_x = 12 sin37

A_x = 7.22 m

Similarly we have

\frac{A_y}{A} = cos37

A_y = A cos37

A_y = 12 cos37

A_y = 9.58 m

So here we have

A_y = 9.58 m, A_x = 7.22 m

option A is correct

3 0
3 years ago
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