what do you do if your trying to use wires for your cart and the hole in the middle coes all the way through

Answer:

energy which a body possesses by virtue of being in motion

Explanation:

Answer:

C

Explanation:

15. 20

x4. x4

60. 80

80km/h

Answer:

80km/h

Explanation:

solution

given

d=20km

t=15min/60min=0.25h

s=?

s=d/t

s=20km/0.25h

s=80km/h

One of the options that are the most appropriate choice of Gaussian surface to use in this problem is a finite closed cylinder whose axis coincides with the axis of the rod and whose cross section has radius r.

This is because the charged cylinder which is of infinite length as mentioned and hence there won't be any electric flux coming out of the top and bottom flat surfaces.

Now, to find out the magnitude of the electric field, we shall have to apply Gauss's law,

\(\int\limits^ _ {} \,\)Eda=  Q enclosed/E

Gaussian surfaces would be the simplest to use to determine the electric field intensity near a long, straight, charged wire, is a cylinder whose axis coincides with the wire.

The Gaussian surface is primarily known as a closed surface in a  three-dimensional space (3-D) such that the flux of a vector field is calculated.

To know more about the Gaussian surfaces, here

brainly.com/question/13003278

#SPJ4

Answer:

If an object pushes out an amount of water equal to its own weight, the upward force acting on it will be equal to gravity - and the object will float.

Explanation:

The buoyant force has an impact on the object in the water and equals the weight of the water displaced by the object. Every object placed in water has some buoyancy force that pushes it against the gravitational force, and this means that any object loses weight in the water.

The notion that every stimulus pattern is seen in such a way that the resulting structure is as simple as possible is called the law of pragnanz

The law of prägnanz is also known as the law of simplicity or the law of good figure . This law states that when presented with a group of ambiguous or complicated objects, your brain will simplify them as much as possible. When presented with the Olympic logo, for example, you see overlapping circles rather than a jumble of curved, connected lines.

To learn more about the law of pragnanz /simplicity/ good figure: brainly.com/question/3053095

#SPJ4

Answer:

B: Solids

Explanation:

I have notes from EDG and I looked it up on the internet

I hope this helps

In the solids, convection can not occur. Convection can only be done in the fluids.

Under the effect of gravity, hotter, less dense material rises while colder, denser stuff sinks, resulting in heat transfer"Convection is the ultimate mode of energy transmission to the surface"

There are three modes of the heat transfer;

1. Conduction

2. Convection

3. Radiation

Convection occurs in the fluid which is liquid and gases. Convection never occurs in the solid.

Hence option B is correct.

To learn more about the convection refer to the link;

https://brainly.com/question/16635311

The efficiency of this light bulb is 25% .

Given data :

output = 30j

Input = 120j

Efficiency  = output / input x 100

  = 30 / 120 x 100

  = 25%

Learn more about efficiency of a light bulb refer to :

https://brainly.com/question/10300122

#SPJ1

The magnitude of the net force on the block while it is sliding is 9.8 N.

The angle of inclination of the plane is calculated by applying the principle of trigonometry ratio.

Considering the vertical height (10 m) and length of the incline (20 m);

sin θ = 10 m / 20 m

sin θ = 1/2

sin θ = 0.5

θ = arc sin(0.5)

θ  = 30⁰

The magnitude of the net force on the block while it is sliding is calculated as follows;

F(║) = F(net) = mg sinθ

where;

F(net) = (2 x 9.8) x sin(30)

F(net) = 9.8 N

Thus, the net force on the block is the parallel component of the weight of the block.

Learn more about net force here: https://brainly.com/question/14361879

#SPJ1

Answer:

v₃ = 9.62[m/s]

Explanation:

To solve this type of problem we must use the principle of conservation of linear momentum, which tells us that the momentum is equal to the product of mass by velocity.

We must analyze the moment when the astronaut launches the toolkit, the before and after. In order to return to the ship, the astronaut must launch the toolkit in the opposite direction to the movement.

Let's take the leftward movement as negative, which is when the astronaut moves away from the ship, and rightward as positive, which is when he approaches the ship.

In this way, we can construct the following equation.

\(-(m_{1}+m_{2})*v_{1}=(m_{1}*v_{2})-(m_{2}*v_{3})\)

where:

m₁ = mass of the astronaut = 157 [kg]

m₂ = mass of the toolkit = 5 [kg]

v₁ = velocity combined of the astronaut and the toolkit before throwing the toolkit = 0.2 [m/s]

v₂ = velocity for returning back to the ship after throwing the toolkit [m/s]

v₃ = velocity at which the toolkit should be thrown [m/s]

Now replacing:

\(-(157+5)*0.2=(157*0.1)-(5*v_{3})\\(5*v_{3})= 15.7+32.4\\v_{3}=9.62[m/s]\)

The velocity with which the astronaut must throw the tool kit is 9.62 m/s.

The given parameters:

Apply the principle of conservation of linear momentum to determine the velocity of the tool kit;

\(m_1 u_1 + m_2u_2 = v(m_1 + m_2)\\\\-0.1(157) \ + 5u_2 = 0.2(157 + 5) \\\\-15.7 + 5u_2 = 32.4\\\\5u_2 = 32.4 + 15.7\\\\5u_2 = 48.1\\\\u_2 = \frac{48.1}{5} \\\\u_2 = 9.62 \ m/s\)

Thus, the velocity with which the astronaut must throw the tool kit is 9.62 m/s.

Learn more about conservation of linear momentum here: https://brainly.com/question/7538238

Answer:

a semi truck

Explanation:

A promising evidence of a habitat that might support life on the planet Mars is water.

There is evidence supporting the existence of liquid water on Mars from numerous sources. The finding of repeated black streaks on Martian slopes and the presence of hydrated minerals suggest the potential of seasonal or location-specific briny water flows. A necessary component of life as known is liquid water.

Additionally, Mars possesses underground ecosystems that could provide defence against radiation and severe surface conditions. Researchers have found evidence of ancient underground hydrothermal systems as well as beneath ice. These settings might offer consistent conditions for the development of microbial life.  Methane gas has been found in the Martian atmosphere, along with variations over time, and this has led to questions regarding its origin. Both geological and biological processes can result in the production of methane.

Read more about Mars on:

https://brainly.com/question/28224926

#SPJ4

Answer:

C

Explanation:

the definition of mass is measure of the amount of substance in an object

The statement that correctly defines mass is that it is the amount of matter in an object. The correct option is C.

Matter is any material that has mass and occupy space by having volume in physical laws and general chemistry.

It is something with reference to weight. The majority of matter in the universe is made up of atoms, which are made up of subatomic particles.

Whether they are living or non-living, they contain matter. Matter is significant because it comprises everything around us. Matter cannot be created or destroyed but instead, it can only be transmogrified into a different form.

The quantity of matter in a physical body is defined as mass. It also represents the body's inertia, or opposition to acceleration when a net force is applied.

Thus, the correct option is C.

For more details regarding matter, visit:

https://brainly.com/question/10893210

#SPJ2

Answer:

OPTION B 285 volts

Explanation:

USE OHM'S LAW

V = IR

V = 28.5 ×10 = 285 volts

HOPE IT HELPED :)

Answer:

c is correct

Explanation:

Steel is a metal that is made from iron and carbon. During the steel making process, iron & carbon are melted together, and is allowed to harden into a solid. The iron and the carbon DO NOT chemically react with each other. After the steel was made, 20 samples were taken from one piece and tested. Each sample contained 98% iron and 2% carbon.

Which of the following terms BEST describes steel? homogeneous mixture

Answer:

The answer is C. Homogeneous Mixture  

Explanation:

In chemistry, a mixture is a material made up of two or more different substances which are physically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids

The force constant of the spring is 40.91 N/m, which can be written as 2133.33 N/m if the value is rounded to the nearest hundredth.

The work done by the block is given by the formula:W = (1/2)kx²

where W is the work done, k is the force constant of the spring, and x is the maximum compression of the spring.

Substituting the given values into the equation,

W = (1/2)kx²= (1/2) x k x (0.048 m)²= (1/2) x k x (0.002304 m²)= (1/2) x 0.11 kJ= 0.055 kJ

The work done by the block is equal to the initial kinetic energy of the block, which is given by the formula:

W = (1/2)mv²

where m is the mass of the block and v is the initial velocity of the block.

Substituting the given values into the equation, W = (1/2)mv²= (1/2) x 0.5 kg x (3 m/s)²= 2.25 J

Comparing the two equations, we have:

0.055 kJ = 2.25 J0.055 x 10³ J = 2.25 J

k = (2.25 J) / (0.055 x 10³ J/m)

k = 40.91 N/m

Learn more about the force at:

https://brainly.com/question/32816725

#SPJ11

Carol's speed in kilometers per hour in order to get to her uncles house in 40 minutes by motorcycle is 36km/hr.

The average speed of a moving body can be calculated by dividing the distance moved by the time taken.

According to this question, the distance between Carol's house and her uncle's house is 24 km. The speed it will take her to get to her uncle's house in 40 minutes by motorcycle is as follows:

Average speed = 24km ÷ 40/60 hour

Average speed = 36km/hr

Therefore, Carol's speed in kilometers per hour in order to get to her uncles house in 40 minutes by motorcycle is 36km/hr.

Learn more about speed at: https://brainly.com/question/7359669

#SPJ2

Answer:

B. It is the flow of electrons that have a negative charge to protons that have a positive charge.

Explanation:

Electric charge is a fundamental property of matter that arises from the presence or absence of electrons in an object. Electrons have a negative charge, while protons have a positive charge. When an object has an excess or shortage of electrons, it creates an electric charge. This charge can be measured and is used to explain various electrical and electronic phenomena, including the flow of electric current, the behavior of electric circuits, and the interaction of charged objects with each other. The flow of electrons from one charged object to another is what creates an electric current, which is a flow of electric charge. Thus, the best definition of electric charge is the flow of electrons that have a negative charge to protons that have a positive charge.

Answer:

Hecht.

Explanation:

Answer:

M = 4.5

Explanation:

He ran 3 meters, which is three meters. Then he ran back half of 3, which is 1.5 meters. 3 + 1.5 is 4.5

The temperature of the water and copper beaker be together is 29.6⁰C.

The final temperature or equilibrium temperature of the water and copper beaker is calculated by applying the principle of conservation of energy.

Heat lost by the water = Heat gained by the copper beaker

mcΔθ (water) = mcΔθ (copper)

where;

m₁c₁(T₁ - T) = m₂c₂(T - T₂)

where;

Specific heat capacity of copper, c₂ = 389 J/kgK

Specific heat capacity of water , c₁ = 4200 J/kgK

(2)(4200)(30 - T) = (1)(389)(T - 20)

252,000 - 8400T = 389T - 7780

259,780 = 8789T

T = 259,780 /8789

T = 29.6⁰C

Learn more about equilibrium temperature here: https://brainly.com/question/8925446

#SPJ1

In an unsteady compressible flow in Cartesian coordinates, material and energy balance equations are used to describe the conservation of mass and energy within the system. These equations are commonly referred to as the continuity equation and the energy equation, respectively.

Continuity Equation:

The continuity equation for an unsteady compressible flow in Cartesian coordinates can be expressed as:

∂ρ/∂t + ∂(ρu)/∂x + ∂(ρv)/∂y + ∂(ρw)/∂z = 0

where:

ρ is the density of the fluid,

t is the time,

u, v, and w are the components of velocity in the x, y, and z directions, respectively, and

x, y, and z are the Cartesian coordinates.

This equation represents the conservation of mass and states that the rate of change of density within a control volume, together with the divergence of the mass flux in each direction, must sum to zero.

Energy Equation:

The energy equation for an unsteady compressible flow in Cartesian coordinates can be expressed as:

∂(ρe)/∂t + ∂(ρeu)/∂x + ∂(ρev)/∂y + ∂(ρew)/∂z = -∇•(pu) + ∂(τu)/∂x + ∂(τv)/∂y + ∂(τw)/∂z + Q

where:

e is the specific internal energy of the fluid,

p is the pressure,

τ is the stress tensor,

Q is the heat transfer per unit volume,

and other terms have the same meaning as in the continuity equation.

This equation represents the conservation of energy and states that the rate of change of energy within a control volume, together with the work done by pressure forces, heat transfer, and viscous effects, must sum to zero.

These material and energy balance equations provide a mathematical framework for analyzing and predicting the behavior of unsteady compressible flows in Cartesian coordinates. They are essential tools in fields such as fluid dynamics, aerodynamics, and thermodynamics for understanding the flow and energy exchange processes within a system.

Learn more about fluid dynamics here:

https://brainly.com/question/30578986

#SPJ11

Answer:

320 m/s

Explanation:

40 miles per second and 8 seconds makes 40 times 8

The value of resistor R that gives the circuit in the figure a time constant of 22 μs is 220 Ω.

The circuit that is in the figure is shown below:Given that time constant (RC) = 22 μs. To find the value of resistor R, we need to use the formula for the time constant:

RC = τ, where R is the resistance and C is the capacitance of the circuit.

Rearranging the above formula, we get:R = τ / C

Where τ is the time constant and C is the capacitance of the circuit.

From the figure, the capacitance is given as 0.1 μF

.Substituting the values of τ and C in the above formula, we get:

R = (22 × 10⁻⁶ s) / (0.1 × 10⁻⁶ F)

R = 220 Ω

Learn more about resistance at

https://brainly.com/question/31504283

#SPJ11

The hammer, anvil, and stirrup are three tiny bones in the middle ear that transmit vibrations from the eardrum to the oval window. The correct option is b.

The hammer, anvil, and stirrup, also known as the ossicles, are three tiny bones located in the middle ear. They are responsible for transmitting sound waves from the eardrum to the inner ear.

When sound waves enter the ear, they cause the eardrum to vibrate. These vibrations are then passed along to the ossicles, which amplify the vibrations and transmit them to the oval window, a membrane that separates the middle ear from the inner ear.

The oval window then vibrates, creating pressure waves that move the fluid in the cochlea, a spiral-shaped organ in the inner ear. The vibrations are then converted into electrical signals that are transmitted to the brain via the auditory nerve, allowing us to perceive sound.

Therefore, the correct answer is (b) oval window, as it is the structure that receives the vibrations from the ossicles and transmits them to the fluid in the inner ear.

To know more about oval window refer here:

https://brainly.com/question/28501382#

#SPJ11

I₂ molecule has the highest boiling point among the halogens. So, the correct option is d.

As we go down the group, the size of the atom increases, and so, the intermolecular forces or the dispersion force becomes stronger.

Among the halogens, I₂ molecule has the highest size and thus stronger intermolecular forces. That means, the electrons in the molecule are away from the nucleus.

Therefore Iodine molecule will have the highest boiling point among the halogens.

To learn more about intermolecular forces, click:

https://brainly.com/question/29773695

#SPJ4

Answer:

the corrdct answer is core

Answer:

dark-field microscopy

Explanation:

A darkfield microscope can be regarded as a brightfield microscope with a significant modification to condenser. There is an opaque disk, with a diameter of about 1cm placed in between the illuminator and condenser lens, the disk responsible for the blocking of most of the light from the illuminator, passing through the condenser to objective lens , which will then form hollow cone of light that has its focus on the specimen. Using a darkfield microscope the light that get to the objective is the only refracted or reflected light of structures in the specimen. And the image formed usually display a bright object with a dark background.

It should be noted that darkfield microscope is a type of microscopy works by allowing only light waves that have reflected from or refracted though the sample to enter the lens system.

activities you can do on a regular basis for physical education​?

If so

It will cost 0.324 Dollars to light six 100w light bulbs for six hours if the price of electrical energy is $0.09/ kwh.

kwh is commercial unit of electric energy. 1 unit= 1 kwh.

When 100 w power device is run for 1 hour, the amount of electrical energy consumed is 1 kwh.

We will find total units of electrical energy consumed in the given question.

energy consumed by 6 bulbs = 6×100= 600 w( joules per second).

The value in kwh is = 600÷1000

                                = 0.6kwh

Total energy consumed in 6 hours is = 0.6×6 = 3.6 kwh

So, the cost is = 3.6×0.09 = 0.324 dollars.

To know more about electrical energy here

brainly.com/question/863273

#SPJ4