a jet of water flowing from a hose at 12 m/s is directed against a wall. if the mass flow in the fluid stream is 2.0 kg/s, what force is the water applying to the wall if backsplash is negligible?

The value of force is 211N.  Thus, the cylinder undergoes through 6 rotations with a force is 211N

A cylinder of mass 5 kg and radius 50cm is rotating at angular speed of 5 rad/sec.

To find the force that must be applied tangentially to the cylinder to bring it to rest in 6 revolutions

As per the given criteria

Rotation if the wheel =  5 rad/ sec

Now, total rev = 6

We know

0 = (10/6) ² - 2 lamda × 6

= 100/36=12 lamba

Lamda= 33.33 rev/sec

Lamda = 2π×33.33 rad/sec²

Now the moment of inertia

I=1/2mr²

=1/2 (0.5) ²× 5

=0.625 kgm²

Since the force F, now torque

F=F.r=0.62 F

Now, torque = I × lamda

= 0.625×33.33×2π

Or 0.62 F= 130.82

F= 211 N  

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The strength of an electric field that a 0.010 C negative charge experiences 0.90 mm from a 0.20 C positive charge is 2.22* 10¹⁷ N/C.

Given that,

Value is positive charge = 0.2 C

Distance of positive charge from 0.01 C negative charge is,

x₀ = 0.09 mm = 0.09 * 10⁻³ m

The expression for the strength of electric field that a 0.010 C negative charge experience from positive charge is,

E₀ = (k* Qₐ)/x₀² = (9* 10⁹* 0.2)/(0.09 * 10⁻³)² = 2.22* 10¹⁷ N/C

Thus, the strength of electric field that a 0.010 C negative charge experience form positive charge is 2.22* 10¹⁷ N/C.

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The light rays from the sun is making an angle of 30° then the angle above the horizon of the sun is 48.32°.

When two lines converge at a point, they produce an angle. The word "angle" refers to the length of the "gap" between these two rays. The symbol is used to denote it.

Radians, a unit of roundness or rotation, and degrees are the 2 most common units used to measure angles. In daily life, angles are present.

As per the information given in the question,

Use the equation of snell's law,

(sin i)/(sin r) = n₂/n₁

r = sin⁻¹ (n₁ sin i)/n₂

Put n₁ = 1.33 and n₂ = 1 also substitute i = 30°

r = sin⁻¹ (1.33) (sin 30)/1

r = sin⁻¹(0.665)

r = 41.68°

The formula for the angle above the horizon,

θ = 90° - r

θ = 90° - 41.68°

θ = 48.32°.

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Answer:

wind power can be tracked back to sunlight since sunlight is one of the causes of moving air which is wind .

High temperature causes air to expand causing it to spread over a wider area decreasing it's pressure compared to places of lower temperature which causes air to contract causing a concentration of air molecules which increases its pressure . This two processes causes a pressure difference which leads to movement of air (wind) whose energy can be used to generate wind power.

Sphere Y will have a negative and Z have a positive sign. The sign of charge q2 will be negative.

When the spheres are separated and the balloon is removed, the two spheres show an electrical charge. The left sphere ends with a positive charge. The sphere on the right ends with a negative charge. When two conductive balls touch together.

It is as if they become one excellent conductor and the combined charge of the two spheres spreads over the surfaces of the contacting spheres. If you release the spheres again, each will still have half the original total charge. The charge is then spread evenly over the surface of the sphere.

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The magnitude of the circuit is 2.5*10^-2. Since the circuit's right edge in the illustration extends into a 50 mt uniform magnetic field, Rightward is the direction of the magnetic force.

According to the left hand rule, the thumb of the left hand points in the direction of force when the middle finger and index finger point in the direction of current and magnetic field, respectively. The magnetic field and the downward direction are indicated by the way the current in this circuit flows, which is from top to bottom. The thumb points to the right if the index finger points into the page and the middle finger points downward. Thus, the direction of the magnetic force is towards right.

F = (5.0)(10)(50mT)(10^-3/1)(sin90)

F = 2.5*10^-2N

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The complete question is -

The Right Edge Of The Circuit In The Figure Extends Into A 50 MT Uniform Magnetic Field. What Are The Magnitude of the circuit.

The exitance in W/cm² for a blackbody radiator at 335 K is 232 W/cm².

The exitance of a blackbody radiator is given by the Stefan-Boltzmann law: exitance = sigma × [tex]T^4[/tex]

where exitance is the power per unit area emitted from the surface of the object, sigma is the Stefan-Boltzmann constant (5.67 x [tex]10^{-8}[/tex] W/m² K^4), and T is the temperature of the blackbody radiator in Kelvin.

To calculate the exitance in W/cm² for a blackbody radiator at 46 K, we can substitute this temperature into the equation:

exitance = 5.67 x [tex]10^{-8}[/tex] W/m² [tex]K^4[/tex] × [tex](46 K)^4[/tex] = 0.000715 W/m²

Converting this to W/cm², we get:

exitance (W/cm²) = 0.000715 W/m² × (100 cm/m)² = 0.0715 W/cm²

To calculate the exitance in W/cm² for a blackbody radiator at 335 K, we can substitute this temperature into the equation:

exitance = 5.67 x [tex]10^{-8}[/tex] W/m² [tex]K^4[/tex] × [tex](335 K)^4[/tex] = 2.32 W/m²

Converting this to W/cm², we get:

exitance (W/cm²) = 2.32 W/m² × (100 cm/m)² = 232 W/cm²

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The movement and charge of particles causes them to form magnetic fields.

Moving electric charges generate magnetic fields. Everything is constructed of atoms, and each atom has an orbiting nucleus that is composed of protons and neutrons. A weak magnetic field is produced around each atom because the orbiting electrons are tiny moving charges.

The movement of electric charges is what generates magnetism. Atoms are little building blocks that make up all substances. Each atom contains electrons, which are little particles with electric charges. The electrons around the nucleus, or core, of an atom spin like tops.

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Yes, all electromagnetic waves have polarization as a characteristic. The primary difference in wave qualities involved in polarization of sound waves is amplitude.

Amplitude, The amplitude of the wave is the largest deviation of the wave from the mean position. It is the maximum height between the Center line and the Peak or Valley. There are waves in plane polarized light, and they all vibrate in the same direction. As the wave travels, the electric of a vector in circular polarization rotates about the direction of propagation. Reflection or travelling through filters, like particular crystals, can both cause light to become polarized.

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Electrical inspector authority enforces the requirements set by the NEC.

The NEC specifies the minimum requirements for secure electrical installations.

The letters "UL" signify an electrical product satisfies the safety requirements of Underwriters Laboratories

Section 110.3 (B) Installation and Use of OSHA and NEC 1999. Equipment that is listed or labelled must be installed and used in accordance with any guidelines mentioned in the listing or labelling.

the word "shall" appears in a NEC reference, it means that it (must)(may) be done.

"The goal of this Code is the practical safeguarding of persons and property from hazards deriving from the usage of electricity," the NEC reads in 90.1(A). *

A collection of guidelines for the secure installation of electrical wiring in the US called the National Electrical Code (NEC) is revised on a regular basis. The NEC has been modified three times since it was first published in 1897.

In order to avoid fires and other electrical catastrophes, the NEC offers recommendations for electrical installation. For installations to be secure, legitimate, and compliant, electricians and contractors must be knowledgeable of the NEC when applicable. The National Fire Protection Organization, a private commercial association, is responsible for maintaining the codes.

The National Electrical Code (NEC) is a national designation, but it is not a federal statute. Local government either adopts NEC standards or writes and enforces its own electrical code in place of this.

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Answer:

13=c

14=a

other question=d

When a light passes through a grating, it split the light to multiple light of different wavelength and which we can see as fringes. It is essentially separate the wavelength of incoming light.

Whilst light goes through a slit, diffraction reasons it to bend and unfold across the display, creating a predictable banded pattern. whilst mild is going thru two slits, new darkish regions seem. The dark and mild areas are produced with the aid of interference of the mild passing via the slits.

White mild can be separated into all seven most important hues of the entire spectrum or rainbow by using a diffraction grating or a prism. The diffraction grating separates mild into colors because the mild passes through the numerous exceptional slits of the grating. this is a transmission grating.

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To solve this problem, you can use the equation for the conservation of energy, which states that the initial potential energy of the spring plus the work done by friction is equal to the final kinetic energy of the block.

The initial potential energy of the spring is given by 0.5kx1^2, where k is the force constant of the spring and x1 is the initial compression of the spring.

The work done by friction is equal to the force of friction times the distance over which it acts, which is given by µkmg*x1, where µk is the coefficient of kinetic friction, m is the mass of the block, g is the acceleration due to gravity, and x1 is the distance the block moves before coming to rest.

The final kinetic energy of the block is given by 0.5mv^2, where m is the mass of the block and v is the final velocity of the block.

You can set up the equation as follows:

0.5kx1^2 + µkmgx1 = 0.5m*v^2

Substituting the given values, we have:

0.5400.3^2 + µk29.810.3 = 0.52*v^2

Solving for µk, we find that:

µk = (0.5400.3^2 - 0.52v^2)/(29.810.3)

The maximum extension x2 of the spring is equal to the distance the block travels, so we can substitute x2 for v:

µk = (0.5400.3^2 - 0.52x2^2)/(29.810.3)

Substituting the value of x2, we find that:

µk = (0.5400.3^2 - 0.520.2^2)/(29.810.3)

Simplifying, we find that:

µk = 0.2

Therefore, the answer is 0.2, letter B.

There is a 230 radian per second angular velocity.

40.25 m/s is the linear speed.

Given that the wheel has a 0.35 m diameter.

as a result, radius D/2

Because one revolution equals one radian.

Thus, an is equal to the product of the velocity change and the time change. a = (w2w1)/(t2t1) a = (w 2w1)/(t2t1).

230 radians per second are hence the angular velocity.

a=v^{2} \r\s(40.25)/0.175\s9257.5

In uniform circular motion, the angular velocity (w), which is a vector quantity, is determined by dividing the angular displacement (), another vector number, by the change in time (t). The arc length traveled (S) divided by the shift in time (t) is the definition of speed.

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The right answer is D. Heat is a type of energy that results from molecules moving from warmer kinds of particles to cooler ones.

Computers, vehicles, communications, state-of-the-art medical technology, and many other things are all powered by energy. The demand for dependable and economical energy is especially pressing for emerging countries. It might even save a person's life.

When electrons transfer by one atom to another, energy is produced. Heat and light are other examples of energy. It is also possible to convert one type of energy into another. Chemical energy that has been stored converts to electric energy using a battery.

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