A reservoir maintains the water surface at an elevation of 380 feet. An 8-inch diameter pipe connects to the reservoir at an elevation of 270 ft and runs at a slope to an exit nozzle at an elevation of 210 ft. The nozzle is 4 inches in diameter. If the head lost through the pipe and nozzle is 36 feet , calculate the flow rate.

A current of a 6 flows through a light bulb for 12 s. The total charge that passes through the light bulb during the given time is 72 coulombs.

To calculate the total charge that passes through the light bulb, we need to use the formula Q = I * t, where Q represents the charge in coulombs, I represents the current in amperes, and t represents the time in seconds.

Step 1: Identify the known values:

Current (I) = 6 amperes

Time (t) = 12 seconds

Step 2: Calculate the charge using the formula:

Q = I * t

Step 3: Substitute the known values into the formula:

Q = 6 amperes * 12 seconds

Q = 72 coulombs

Therefore, the total charge that passes through the light bulb during the given time is 72 coulombs.

For more such questions on charge, click on:

https://brainly.com/question/2373424

#SPJ8

Answer:

b

Explanation:

Answer:

B B*

Explanation:

B BBBBB

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

The diameter of the smaller end of the pipe is approximately 0.78 meters.

To determine the diameter of the smaller end of the pipe, we can use the principle of conservation of mass. According to this principle, the mass flow rate of water should remain constant throughout the pipe.

The mass flow rate is given by the equation:
Mass flow rate = density of water * cross-sectional area * velocity

Since the density of the water remains constant, we can write:
Cross-sectional area1 * velocity1 = Cross-sectional area2 * velocity2

Given that the velocity1 is 13 m/s, the diameter1 is 1.2 m, and the velocity2 is 30 m/s, we can solve for the diameter2 using the equation:
(pi * (diameter1/2)^2) * velocity1 = (pi * (diameter2/2)^2) * velocity2

Simplifying the equation:
(1.2/2)^2 * 13 = (diameter2/2)^2 * 30

Calculating the equation:
(0.6)^2 * 13 = (diameter2/2)^2 * 30

0.36 * 13 = (diameter2/2)^2 * 30

4.68 = (diameter2/2)^2 * 30

Dividing both sides by 30:
0.156 = (diameter2/2)^2

Taking the square root of both sides:
0.39 = diameter2/2

Multiplying both sides by 2:
0.78 = diameter2

To learn more about diameter

https://brainly.com/question/32968193

#SPJ8

Answer:

Diffusion

Explanation:

Diffusion is a phenomenon whereby particles move from an area of higher concentration to an area of lower concentration.

Now, when the chemical substances of the perfume are sprayed in a room, their particles will now mix with the particles of the surrounding air.

Furthermore, the particles of the perfume which is like gas will be free to move in a very fast manner in all directions. Thus, they will eventually spread throughout the whole area where you are and thus move from the area where it is sprayed which is the area of higher concentration to the area where you are which includes your nose which is the area of lower concentration.

Answer:

mass =25 kg

using clockwise moment = anticlockwise moment

Answer:

Explanation:

potential energy = mgh

Given

Mass m = 3.6kg

g = 9.8m/s²

Height = 3m

Substitute

potential energy = 3.6*9.8 * 3

potential energy= 105.84 Joules

Hence the cat's potential energy is 105.84 Joules

We can use the kinematic equation for constant acceleration to solve this problem .The mass of the bin is 40 kg.

Kinematics is the study of how points, objects, and groups of objects move without considering the factors that generate those motions. The part of classical mechanics known as kinematics addresses the motion of points, objects, and systems made up of collections of items.

\(x = 1/2 * a * t^2 + v0 * t\)

\(a = 2(x - v0 * t) / t^2\)

In this case, x = 100 m, t = 10 s, v0 = 0, and the net force acting on the bin is:

F_net = F_applied - F_friction

F_net = 0

Therefore, we can solve for the mass of the bin:

F_applied - F_friction = ma

100 N - 20 N = m * a

Simplifying, we get:

80 N = m * a

\(a = 2(x - v0 * t) / t^2\)

\(= 2(100 m - 0) / (10 s)^2\)

\(= 2 m/s^2\)

Substituting this value into the previous equation, we get:

\(80 N = m * 2 m/s^2\)

Simplifying, we get:

m = 40 kg

To know more about kinematic equation visit:-

brainly.com/question/28712225

#SPJ1

Answer:

Explanation:

Let's just have our reference frame travel along with the original un broken mass. This way the original velocity is not relevant.

Each half will have a mass of 770/2 = 385 kg

Each half will have the same magnitude of velocity (conservation of momentum) which will be 2.6 x 10³/2 = 1.30 x 10³ m/s

Now add back the reference frame velocity to get velocity relative to earth.

Section one will have velocity 6.90 x 10³ + 1.30 x 10³ = 8.2 x 10³ m/s

Section two will have velocity 6.90 x 10³ - 1.30 x 10³ = 5.6 x 10³ m/s

In the moving reference frame, each half will have kinetic energy which could only come from the explosion

KE = ½(385)(1.3 x 10³)² = 325,325,000 J

2(325,325,000) = 650,650,000 J released in the explosion.

Rounding to the three significant figures of the problem numerals

E = 6.50 x 10⁸ J or 650 MJ released

There are a few ways that a man stranded on a planet with no magnetic field could tell the difference between a magnetized iron bar and a non-magnetized iron bar and they are as follows:

A magnetic field refers to a vector field that explains the magnetic effects on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. Different ways of detecting a magnetic field are listed and explained below:

Attraction to a magnetic object: The magnetized iron bar will be attracted to a magnetic object (such as a magnet), while the non-magnetized iron bar will not be attracted.

Magnetic field detection: The magnetized iron bar will produce a magnetic field that can be detected using a device such as a magnetometer. The non-magnetized iron bar will not produce a detectable magnetic field.

Compass needle deflection: The magnetized iron bar will deflect the needle of a compass, while the non-magnetized iron bar will not.

Induced magnetism: The magnetized iron bar can be used to magnetize another iron bar through the process of induced magnetism. This can be tested by attempting to use the magnetized iron bar to magnetize the other iron bar. If the other iron bar becomes magnetized, it was originally non-magnetized. If the other iron bar does not become magnetized, it was already magnetized.

Physical properties: The magnetized iron bar may have different physical properties (such as density or color) compared to the non-magnetized iron bar, depending on the process used to magnetize it. These differences can be observed and used to distinguish between the two bars.

Therefore, the correct answer is as given above

learn more about magnetic field: https://brainly.com/question/14411049

#SPJ1

Charge =

(current in Amperes) x (time in seconds)

1 Ampere means 1 Coulomb per second

240 Coulombs

90 Coulombs

150 Coulombs

Given,

diameter of the circle=side of the square, d=14 m

Therefore the radius of the circle, r=7 m

Area of the circle is given by,

On substituting th known values,

The area of the square is given by,

On substituting the known values,

The area of the shaded region is given by,

Therefore, the area of the shaded region is 42.14 m²

Answer: couldn't type in that little 3 haha

Explanation:

Answer:

6.25J

Explanation:

bc that’s the answer on khan

Two carts connected by a 0.50 m spring hit a wall, compressing the spring to 0.25 m. If the spring constant k is 200 N/m, then the elastic potential energy stored from the spring's compression would be 6.25 J.

The spring constant is used to define the stiffness of the spring, the greater the value of the spring constant stiffer the spring and it is more difficult to stretch the spring.

The mathematical relation for calculating the spring constant is as follows

F = - Kx

as given in the problem Two carts connected by a 0.50 m spring hit a wall, compressing the spring to 0.25 m. If the spring constant k is 200 N/m,

The elastic potential energy stored is given by

E = 1/2 kx²

  =0.5×200×0.25²

  =6.25 J

Thus, the elastic potential energy stored from the spring's compression would be 6.25 J.

Learn more about spring constant here

brainly.com/question/14670501

#SPJ2

The objective of a heat engine is to transform heat into work. So, correct option is A.

A heat engine is a device that converts thermal energy (heat) into mechanical work. It operates by absorbing heat from a hot source, such as a furnace, and converting it into useful mechanical energy, such as rotating a shaft or driving a machine. The efficiency of a heat engine is determined by the difference between the temperature of the hot source and the temperature of the cooled working fluid (usually air or water). Examples of heat engines include internal combustion engines in cars, steam turbines in power plants, and Stirling engines in heat pumps and refrigeration systems.

The objective of a heat engine is to transform heat into work. A heat engine is a device that uses heat energy from a high-temperature source to perform mechanical work by using a thermodynamic cycle. The basic idea behind a heat engine is to extract thermal energy from a high-temperature source, convert some of this energy into useful mechanical work, and then reject the remaining heat to a lower-temperature sink. The efficiency of a heat engine is determined by the amount of thermal energy that is converted into useful work and the amount of heat that is rejected to the lower-temperature sink.

To know more about thermodynamic visit:

https://brainly.com/question/1604031

#SPJ4

ANSWER:

STEP-BY-STEP EXPLANATION:

Given:

Answer:

Explanation: #1 is A #2 is C #3 is correct #4 is correct #5 is correct

Answer:

From the value of each person's time to finish the race, it can be concluded that Geoff will win the race.

Explanation:

Given;

total distance to be covered, d = 1000 m

first distance covered by Blythe, \(d_b_1\) = 600 m

constant speed of Blythe at the first stage, \(v_b_1\) = 4 m/s

final speed of Blythe, \(v_b_f\) = 7.5 m/s

time of Blythe's constant acceleration, \(t\) = 1 min = 60 s

initial speed of Geoff, \(v_g_1\) = 0

final speed of Geoff, \(v_g_f\) = 8 m/s

time of Blythe's constant acceleration, \(t\) = 3 min = 180 s

The acceleration of Blythe is given as;

\(a_b = \frac{dv}{dt} = \frac{7.5 - 4}{60} = 0.0583 \ m/s^2\)

distance covered by Blythe during this acceleration is given as;

\(d_{a_b} = v_b_1t + \frac{1}{2} a_b t^2\\\\d_{a_b} = 4*60 + \frac{1}{2}(0.0583) (60)^2\\\\d_{a_b} = 344.94 \ m\)

The remaining distance covered by 7.5 m/s is given as;

\(d_f = d - (600 + 344.94)\\\\d_f = 1000- (944.94)\\\\d_f = 55.06 \ m\)

The total time for Blythe to covere the entire distance = time taken to cover 600 m + time taken to cover 344.94 m + time taken to cover 55.06 m

\(t_b = \frac{600 \ m}{4 \ m/s}\ +\ 60 s \ + \ \frac{55.06 \ m}{7.5 \ m/s} \\\\t_b = 150 s \ + \ 60s \ + \ 7.34 s\\\\t_b = 217.34 s\)

The acceleration of Geoff  is given as;

\(a_g = \frac{dv}{dt} = \frac{8 -0}{180} = 0.044 \ m/s^2\)

distance covered by Geoff during this acceleration is given as;

\(d_{a_g} = v_g_1 + \frac{1}{2}a_gt^2\\\\ d_{a_g} =0 + \frac{1}{2}(0.044)(180)^2\\\\ d_{a_g} = 712.8 \ m\)

The remaining distance covered by 8 m/s is given a;

\(d_f = 1000 \ m - 712.8 \ m\\\\d_f = 287.2 \ m\)

The total time for Geoff to covere the entire distance = time taken to cover 712.8 m + time taken to cover 287.2 m

\(t_g = 180s + \frac{287.2 \ m}{8 \ m/s} \\\\t_g = 180s + 35.9 s\\\\t_g = 215.9 s\)

Therefore, from the value of each person's time to finish the race, it can be concluded that Geoff will win the race

Answer:

The two forces acting on a boat or some other floating object are buoyancy and gravity

Answer: buoyant forceExplanation:two forces acting on a boat or some other floating object are buoyant force and gravityhi friend your answerI hope it will be helpful for you

mark as brainest answer

thank you

Answer:

v=f×λ

Explanation:

v=f×λ

v is the speed of sound

f is the frequency of sound

λ is the wavelength

The speed of sound in air and water is different, but the frequency can be calculated from the given range above.

HAVE FUN LEARNING!!!( sorry im just to lazy to get the number so...)

The magnitude of the initial acceleration of the object is 4.2 m/s².

The tension in the string once the object starts moving is 13.65 N.

The magnitude of the initial acceleration of the object is calculated by applying Newton's second law of motion as follows;

F(net) = ma

m₂g - μm₁g cosθ = a(m₁ + m₂)

where;

(4.75 x 9.8) - (0.535 x 3.25 x 9.8 x cos40) = a(3.25 + 4.75)

33.5 = 8a

a = 33.5/8

a = 4.2 m/s²

The tension in the string once the object starts moving is calculated as;

T = m₁a

T = 3.25 x 4.2

T = 13.65 N

Learn more about acceleration here: https://brainly.com/question/14344386

#SPJ1

Answer:

\(y_n(x) =C_n \sin \sqrt{\frac{\rho}{T} } w_nx=C_n \sin \sqrt{\frac{\rho}{T} } \sqrt{\frac{T}{\rho} } \frac{n \pi}{L} x\)

\(y_n(x) = C_n \sin \frac{n \pi x}{L}\)

Explanation:

The given differential equation is

\(T\frac{d^2y}{dx^2} + \rho w ^2y=0\) and y(0) = 0, y(L) =0

where T and ρ  are constants

The given rewrite as

\(\frac{d^2y}{dx^2} + \frac{\rho w^2}{T} y=0\)

auxiliary equation is

\(m^2+ \frac{\rho w^2}{T} =0\\\\m= \pm\sqrt{\frac{\rho}{T} } wi\)

Solution of this de is

\(y(x)=C_1 \cos \sqrt{\frac{\rho}{t} } wx + C_2 \sin \sqrt{\frac{\rho}{T} } wx\)

y(0)=0 ⇒ C₁ = 0

\(y(x) = C_2 \sin \sqrt{\frac{\rho}{T} } wx\)

y(L) = 0 ⇒

\(C_2 \sin \sqrt{\frac{\rho}{T} } wL=0\)

we need non zero solution

⇒ C₂ ≠ 0 and

\(\sin \sqrt{\frac{\rho}{T} } wL=0\)

\(\sin \sqrt{\frac{\rho}{T} } wL=0 \rightarrow \sqrt{\frac{\rho}{T} } wL=n \pi\)

\(w_n = \sqrt{\frac{T}{\rho} } \frac{n \pi}{L}\)

solution corresponding these \(w_n\) values

\(y_n(x) =C_n \sin \sqrt{\frac{\rho}{T} } w_nx=C_n \sin \sqrt{\frac{\rho}{T} } \sqrt{\frac{T}{\rho} } \frac{n \pi}{L} x\)

\(y_n(x) = C_n \sin \frac{n \pi x}{L}\)

The following statement is not a scientific hypothesis:

C. Halle Berry is attractive.

A scientific hypothesis is a proposed explanation for an observation or pattern in nature that can be tested through further investigation and experimentation. It should be testable, falsifiable, and based on evidence.

Neon atoms emit red light. This is a scientific hypothesis that can be tested and confirmed by looking at the spectrum of light emitted by neon atoms.

B. There is an attractive force between the earth and moon. This is a scientific hypothesis that can be tested and confirmed by measuring the force of gravity between the earth and moon.

D. Summer days are the hottest of the year. This is a scientific hypothesis that can be tested and confirmed by collecting temperature data during the summer months.

E. The sky is blue. This is a scientific hypothesis that can be tested and confirmed by observing the sky under different atmospheric conditions.

The statement "Halle Berry is attractive" is a subjective opinion that cannot be tested or confirmed through scientific investigation, hence it is not a scientific hypothesis. Attractiveness, as a concept, can vary widely based on personal, cultural, and social factors.

Learn more about scientific hypothesis:

https://brainly.com/question/14521292

The potential energy of the roller coaster is 176,400 J (joules).

The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.

In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).

Using the formula, we can calculate the potential energy:

PE = mgh

= (900 kg)(9.8 \(m/s^2\))(20 m)

= 176,400 J

Therefore, the potential energy of the roller coaster is 176,400 J (joules).

Know more about  potential energy    here:

https://brainly.com/question/21175118

#SPJ8

Answer:

If he's 500 kg and 1 kg = 10 N then it would be 5,000 N

Explanation:

The surface area is unimportant and they'll use it to trick you.

Answer:

no

Explanation:

can form either real or virtual images. Convex lens converge parallel rays coming from object at infinity and highly diminished point sized, real and inverted image is formed.

Answer:

no it does not forms a real image

Plate boundaries represent the parts of the Earth's crust where plates come in contact with one another. There are three types of plate boundaries based on the movement and interaction of the plates involved. These are: Divergent Plate Boundaries, Convergent Plate Boundaries, and Transform Plate Boundaries.

Divergent Plate Boundaries
At divergent plate boundaries, two plates move away from each other as magma rises to the surface and creates new crustal material. Examples of divergent plate boundaries include the Mid-Atlantic Ridge, the East Pacific Rise, and the African Rift Valley.

Convergent Plate Boundaries
At convergent plate boundaries, two plates move toward each other and eventually collide. Depending on the type of plate involved, different types of interactions can occur. The three types of convergent plate boundaries are oceanic-continental, oceanic-oceanic, and continental-continental. An example of oceanic-continental convergence is the Pacific Northwest region of the United States. An example of oceanic-oceanic convergence is the Japanese Islands, and an example of continental-continental convergence is the Himalayas.

Transform Plate Boundaries
At transform plate boundaries, two plates move past each other in a horizontal direction. These boundaries are characterized by faults and earthquakes, such as the San Andreas Fault in California.

To create an illustration that represents each type of plate movement, you can draw a diagram that shows the direction of plate movement, the type of boundary, and any notable geological features associated with that type of boundary.

For example, a divergent plate boundary illustration could include a depiction of magma rising to the surface and creating new crustal material, while a transform plate boundary illustration could include a fault line and a depiction of the earthquakes that occur along that boundary.

For more question the Earth's crust

https://brainly.com/question/11616312

#SPJ8

The cone emits a single-frequency sound of 100 Hz and moves in a straightforward harmonic manner. The cone moves a maximum of 2.0 millimetres when it is making a loud sound.

Simple harmonic motion is a particular type of periodic motion of a body that arises from a dynamic equilibrium between an inertial force that is proportional to the acceleration of the body away from the static equilibrium position and a restoring force on the moving object that is directly proportional to the magnitude of the object's displacement and acts towards the object's equilibrium position.

In mechanics and physics, SHM is sometimes used to refer to this motion. If friction or any other energy dissipation is not present, it leads to an oscillation that is represented by a sinusoid and that lasts indefinitely.

Learn more about  harmonic motion

https://brainly.com/question/30404816

#SPJ1

Answer:

the intercept is the orgin (0,0)

Answer:

A wave can be thought of as a disturbance or oscillation that travels through space-time, accompanied by a transfer of energy. The direction a wave propagates is perpendicular to the direction it oscillates for transverse waves. A wave does not move mass in the direction of propagation; it transfers energy.