Civil engineers calculate suggested speeds around corners (those yellow signs) when designing roads based upon the ability of a car to remain upon the road. The ability of the car to remain upon the road when taking a corner is determined by the centripetal acceleration of your car around the corner. If you are driving a car around a flat circular turn with a suggested speed of 15 mph, how much more likely is it that your car does not successfully take the corner (ends up in the ditch) if you were to instead drive 45 mph? Cite an equation to back up your thinking.​

The largest producer of primary air pollution in the United States is what? electricity producing plants.

Answer:

electricity production

Explanation:

Ohm's law is a fundamental principle in physics and electrical engineering that relates the current flowing through a conductor to the voltage applied across it. It states that the current (I) passing through a conductor is directly proportional to the voltage (V) across the conductor, and inversely proportional to the resistance (R) of the conductor.

The current along 20 ohms in a circuit with two resistors, 20 ohms and 30 ohms, which are connected in parallel, and this combination is connected in a series to an 8 ohms resistor and a battery of e.m.f. 12 volts can be calculated as follows: The equivalent resistance for the two resistors connected in parallel by using the formula 1/Rt = 1/R1 + 1/R2, where R1 and R2 are the resistors in parallel.1/Rt = 1/20 + 1/30 = 3/60 + 2/60 = 5/60Rt = 60/5 = 12 ohms.

The equivalent resistance of the two parallel resistors is 12 ohms.

Now, calculate the total resistance of the circuit by adding the equivalent resistance of the parallel resistors and the 8 ohms resistor.

Rtotal = 12 + 8 = 20 ohmsThe total resistance of the circuit is 20 ohms.

Finally, calculate the current along the 20 ohms resistor using Ohm's law, which states that I = V/R, where V is the voltage of the battery and R is the resistance. I = V/R = 12/20 = 0.6 A.

The current along the 20 ohms resistor is 0.6 A.

Learn more about resistor here ;

https://brainly.com/question/30672175

#SPJ11

Pollination is the transfer of pollen for plant fertilization

The correct responses are as follows;

The description of the changes that take place is included in this response

6 (i) The circuit arrangement is a parallel circuit arrangement

(ii) The advantages are;

(iii)  Lamp C glows the brightest

(iv) The total resistance is 4 Ω

The reason roe the above responses are as follows:

During the course of pollination, the pollen, through movement, finds it way to the germ-cell in the female ovary, where it fuses with the female egg (gamete) located inside the ovule

The resulting fertilization produces the zygote, which forms an embryo inside the ovule by dividing several times

A seed is formed from the ovule when it develops a tough coat, and by rapid growth a fruit is formed as the ovary matures

5 (i) The kind of combination, where all the wires that enters the bulb are joined on one side of the bulbs, and all the wires that comes from the bulbs are joined on the other end of the bulb, before joining the circuit is a parallel connection

(ii) The advantages of bulbs connected in parallel are;

(iii) The bulb that glows brightest is given by the bulb that consumes the most energy per unit time, and therefore, the bulb that has the most power

Power consumed by each bulb is given as follows;

Bulb A, \(P_A\) = 3 A × 60 V = 180 W

Bulb B, \(P_B\) = 4 A × 60 V = 240 W

Bulb C, \(P_C\) = 5 A × 60 V = 300 W

Bulb D, \(P_D\) = 3 A × 60 V = 240 W

The highest power used by a bulb is 300 W, by bulb C

Therefore;

Bulb C is the brightest bulb

(iv) The total resistance of the circuit is given as follows;

\(Total \ resistance =\dfrac{Circuit \ voltage}{Total \ current}\)

Total current, \(I_{tot}\) = 3 A + 4 A + 5 A + 3 A = 15 A

Circuit voltage, V = 60 V (Given)

Therefore, we have;

\(Total \ resistance =\dfrac{60 \, V}{15 \, A} = 4 \, \Omega\)

The total resistance is 4 Ω

Learn more about pollination and circuits here:

https://brainly.com/question/24597586

https://brainly.com/question/21302135

Given, the mass of the sample = 433 kg. We need to find the mass of the sample in milligrams (mg).

1 kilogram (kg) = 1,000,000 milligrams (mg)

Therefore,

Mass of the sample in mg = 433 × 1,000,000 mg = 4.33 × 10^8 mg.Hence, the answer is an option (e) 4.33 × 10^8 mg.

The conversion factor between kilograms and milligrams is 1 kg = 1,000,000 mg. Therefore, to convert the mass of the sample from kilograms to milligrams, we simply multiply it by 1,000,000.

433 kg × 1,000,000 mg/kg = 433,000,000 mg

To express the result in scientific notation, we write it as 4.33 × 10^8 mg.

Option (e) is the correct answer.

Learn more about scientific notation here:-brainly.com/question/16936662

#SPJ11

The speed of the ferry boat is 16.67 meters per second.

At a velocity of 10.0 m/s, the boat crossed the calm sea. Un = 2.00 m/s, river water speed Let v represent the ferry's effective river crossing speed, allowing it to travel directly to the location on the opposite side. We can then express their velocities as shown below.

Greek philosopher Pythagoras made significant contributions to mathematics, astronomy, and music theory. Although the Babylonians were aware of the theorem 1000 years before Pythagoras, he may be the first to use it.

We can use the formula for momentum:

p = mv

where p is momentum, m is mass, and v is velocity or speed.

Rearranging this formula to solve for velocity, we get:

v = p/m

Substituting the given values, we get:

v = 25000 kg-m/s / 1500 kg

v = 16.67 m/s

Therefore, the speed of the ferry boat is 16.67 meters per second.

To know more about Pythagoras visit:

brainly.com/question/28757057

#SPJ1

Since it varies directly with the square of the wire's diameter and inversely with wire length, the conductance of a wire is 0.15 mho.

A wire's electrical resistance varies inversely as the square of its diameter and directly as its length. A wire with a diameter of 1/4 inch and a length of 200 inches has a 20 ohm resistance.

Let L be the wire's length, d its diameter, and C its conductance be the parameters.

Based on the facts provided, we can:

C ∝ d² (conductance varies directly as the square of the diameter)

C ∝ 1/L (conductance varies inversely as the length)

Combining these two proportionalities, we get: C ∝ d²/L

This connection can be used to find a solution to the issue. Using the numbers for the 50 m wire, we can first calculate the proportionality constant as follows:

C = k(d²/L)

0.12 = k(2²/50)

k = 0.12*50/4 = 1.5

So, using this value of k, we can determine the conductance of a 75 m wire with a 2.5 mm diameter:

C = k(d²/L)

C = 1.5*(2.5²/75)

C = 0.15 mho

To know more about resistance visit:-

https://brainly.com/question/30799966

#SPJ1

Answer:

wheel and axle

Explanation:

hope this helps

Answer:

200 m

Explanation:

Initial velocity- 0

final velocity= v

time= 10 seconds

to find final velocity

v= u + at

v= 0 + 4*10

v= 0 + 40

v= 40 m/s

to find distance

s= ut + 1/2at²

s= 0*10 + 1/2*4*(10)²

s= 1/2 *4*100

s=200m

answer : 200 m

Answer:

The recurve bows

Explanation:Vote brainliest plz

Specific heat is quantity of heat required to increase the temperature of a substance by one degree celsius.

The formula to calculate heat energy is

Q=mc∆T

We know, Q=mc∆T

Where Q = heat energy

m = mass

c= specific heat capacity

∆T= change in temperature

Thus,

According to above formula

c= Q/m∆T

Here m= 2 kg

∆T= 5 degrees

Q= 2000 joules

c= 2000/2×5

c= 200

Thus, the specific heat capacity of the block is 200.

To know more about specific heat, click on:

brainly.com/question/27991746

#SPJ9

Answer:

Depending on the tempetures he's most likly looking to see what temp it will grow under and which one grows the fastest

Explanation:

Answer:

Depending on the tempetures he's most likly looking to see what temp it will grow under and which one grows the fastest

Explanation:

To solve this problem, we need to analyze the projectile motion of the ball. Therefore, the horizontal component is approximately 14.878 m/s.Therefore, the ball is in the air for approximately 1.954 seconds.

Given:

Initial speed (magnitude): 18.0 m/s

Launch angle: 31.0 degrees above the horizontal

We can break down the initial velocity into horizontal and vertical components:

Initial horizontal velocity (v₀x) = v₀ * cos(θ)

Initial vertical velocity (v₀y) = v₀ * sin(θ)

where v₀ is the initial speed and θ is the launch angle.

Using the given values:

v₀ = 18.0 m/s

θ = 31.0 degrees (converted to radians, 31° * π/180 ≈ 0.5411 rad)

v₀x = 18.0 m/s * cos(0.5411 rad) ≈ 14.878 m/s (rounded to three significant figures)

v₀y = 18.0 m/s * sin(0.5411 rad) ≈ 9.570 m/s (rounded to three significant figures)

Part A: The horizontal component of the ball's velocity just before it is caught is equal to the initial horizontal velocity because there is no horizontal acceleration during the ball's flight. Therefore, the horizontal component is approximately 14.878 m/s.

Part B: The time of flight can be determined using the equation:

Δy = v₀y * t + (1/2) * g * t²

where Δy is the vertical displacement (initially 0 m since it is caught at the same level), v₀y is the initial vertical velocity, t is the time, and g is the acceleration due to gravity (-9.8 m/s²).

0 m = 9.570 m/s * t + (1/2) * (-9.8 m/s²) * t²

Simplifying the equation:

-4.9 t² + 9.570 t = 0

Solving this quadratic equation, we find two possible solutions for t: t = 0 s or t = 1.954 s.

Since the ball is caught, we consider the positive value of time, which is approximately t = 1.954 s (rounded to three significant figures).

Therefore, the ball is in the air for approximately 1.954 seconds.

To know more about projectile motion

https://brainly.com/question/10680035

#SPJ4

Hurricane propagation is the process through which a hurricane moves from one location to another.

Winds from throughout the world direct hurricanes. The environmental wind field, commonly referred to as the dominant winds, is what directs a cyclone along its course. The hurricane moves in the direction of this wind field, which affects the hurricane's speed of movement.

The northeast trade winds move these hurricanes toward the United States.

To learn more about northeast trade winds, click:

https://brainly.com/question/28313434

#SPJ1

Answer:

i dont undertsnad what do u ned hep wit?

Explanation:

Answer:

Option 3

Explanation:

Hope it will help you

Pls Mark me as brainliest

You tmuc

Sound waves are invisible and can move through the water, therefore the correct answer is option D.

It is a particular variety of mechanical waves made up of the disruption brought on by the movements of the energy. In an elastic medium like the air, a sound wave travels through compression and rarefaction.

Sound waves cannot travel in a vacuum, and they are invisible in nature.

While electromagnetic waves are transverse waves, sound waves are longitudinal waves, and the temperature of the medium in which they travel greatly affects the speed of the sound.

The mathematical expression for the speed of the sound in air is given by

v= √γRT

where v is the speed of the sound

R is the ideal gas constant

T is the temperature

γ is the adiabatic index

The speed of sound in air at 0° Celcius is 330 m/s.

Since sound waves can travel through water and are invisible, option D is the appropriate answer.

Learn more about sound waves from here

brainly.com/question/11797560

#SPJ5

Thirty-five coulombs of charge flow through a wire in 2 minutes accounts for around 0.29167 amperes in the current wire.

Given:

Electric charge= 30 coulomb

Time for which charge flows through a wire = 2 minutes = 120 seconds

To find:

Electric current flowing in a wire=?

To calculate electric current understand the concept:

An electric current is the flow of charged particles through the conducting material.

The Standard International unit of electric current is Ampere or amp or A.

One ampere is defined as the flow of one-coulomb electric charge in one second.

It can be calculated as follows:

Electric current (Ampere) = Electric charge(Coulomb) ÷ time(seconds)

Electric current (A) = 35 C ÷ 120 s

Electric current = 0.29167 amperes

Hence, the electric current is flowing at the rate of 0.29167C/s or 0.29167 Ampere through a wire.

Learn more about electric current here,

https://brainly.com/question/2264542

# SPJ4

A wave that remains in a constant position is referred to as a stationary wave or a standing wave.

It is formed by the superposition of two waves with the same frequency and amplitude traveling in opposite directions. Unlike a traveling wave that moves through space, a standing wave appears to be stationary because the wave peaks and troughs oscillate in place.

The formation of a standing wave occurs when a wave reflects back upon itself, interacting constructively and destructively with the incoming wave. This phenomenon is characterized by the presence of nodes and antinodes. Nodes are points along the wave where the amplitude is always zero, resulting from destructive interference between the two waves. Antinodes, on the other hand, are points of maximum displacement, created by constructive interference..

Standing waves have significant implications in various fields of study. In physics and engineering, they are essential in the analysis of acoustics, optics, and electromagnetic fields. They find applications in musical instruments, where standing waves inside the instrument's resonating body create distinct harmonics and produce specific musical tones.

Know more about standing wave here:

https://brainly.com/question/2292466

#SPJ8

Answer:

La galvanoplastia o electrodeposición es una aplicación práctica de la electroquímica. Se trata de una técnica basada en los principios electroquímicos, en donde se aplica una o varias capas de un metal seleccionado sobre un objeto receptor, por lo general, también metálico.

Explanation:

Espero te sirva de algo ;)

25.1 grams are still present after 8.1 days. When the Gold-198 has a half-life of 2.7 days.

The act of producing radiation spontaneously is known as radioactivity. This is accomplished by an unstable atomic nucleus that wants to give up some energy in order to move to a more stable form.

The half-life of the gold  =2.7 days

Sample size  = 200 grams

N is the left amount after the given time =?

Constant of rate = 0.26

The rate constant is found as;

\(\rm \lambda = \frac{0.693}{t^{\frac{1}{2}}} \\\\ \lambda = 0.256 \ days^{-1}\)

The amount after the given time;

\(\rm N=N_0 \times e^{-\lambda t} \\\\\ N = 200 \times e^{-0.256 \times 8.1 \ days} \\\\N=25.1 \ gm\)

Hence,25.1 grams are still present after 8.1 days.

To learn more about the radioactivity, refer  to the link;

https://brainly.com/question/1770619

#SPJ1

ANSWER:

STEP-BY-STEP EXPLANATION:

Answer:

It is impossible to answer that as we could discover more than we know now in years to come with advanced technologies

Explanation:

Answer:

it's a

Explanation:

hope this helps!!!!!!

When s = 11, the rate of change of the volume of the cube with respect to the length of its side is 363 cubic units per unit change in side length.

To find the rate of change of the volume of a cube with respect to the length of its side, we need to differentiate the volume formula with respect to the side length.

Let's denote the side length of the cube as "s" and the volume as "V."

The volume of a cube is given by the formula V = s³.

To find the rate of change of V with respect to s, we differentiate V with respect to s:

dV/ds = 3s².

Now, if we substitute s = 11 into the expression, we can find the rate of change at that specific value:

dV/ds = 3(11)²

      = 3(121)

      = 363.

Therefore, when s = 11, the cube's volume changes at a rate of 363 cubic units for every unit increase or decrease in side length.

Learn more about volume of cube:

https://brainly.com/question/16494259

#SPJ11

Unintentional injuries caused by accidents are the number one killer of children and teenagers.

What causes the majority of adolescent deaths?

A little over half of all adolescent fatalities are caused by accidents. Over one-third of all fatal accidents fall under the category of motor vehicle fatalities, which is the top cause of death for teens. Non-Hispanic black male teens have the highest death rate.

The top causes of mortality for children under 5 years old continue to be congenital anomalies, pre-term birth complications, birth asphyxia, and other infectious diseases like pneumonia, diarrhea, and malaria. According to a recent study, homicide is the top cause of death for children in the United States, and the total rate has grown by 4.3% annually on average.

To learn more about mortality  use :

https://brainly.com/question/14645933

#SPJ1

Four 1.50-V cells are connected in series to a 12.0-Ω lightbulb. If the resulting current is 0.45 A, The internal resistance of each cell, assuming they are identical and neglecting the resistance of the wires is 1.33 Ω.

To determine the internal resistance of each cell, we can use Ohm’s law and the concept of voltage division in a series circuit. Ohm’s law states the relationship between electric current and potential difference. The current that flows through most conductors is directly proportional to the voltage applied to it. Georg Simon Ohm, a German physicist was the first to verify Ohm’s law experimentally.

In a series circuit, the total voltage across the circuit is the sum of the individual voltages. Since four 1.50-V cells are connected in series, the total voltage across the circuit is:

Total voltage = 4 x 1.50 V = 6.00 V

The total resistance in the circuit is the sum of the lightbulb resistance and the internal resistance of the cells:

Total resistance = Lightbulb resistance + Internal resistance of each cell = 12.0 Ω

The current flowing through the circuit is given as 0.45 A.

Using Ohm’s law, we can calculate the voltage drop across the internal resistance of each cell:

Voltage drop across each internal resistance = Total voltage – Voltage across the lightbulb

= 6.00 V – (0.45 A x 12.0 Ω)

= 6.00 V – 5.40 V

= 0.60 V

Now, we can determine the internal resistance of each cell using Ohm’s law: Internal resistance of each cell = Voltage drop across each internal resistance / Current

= 0.60 V / 0.45 A

= 1.33 Ω

Therefore, assuming the cells are identical and neglecting the resistance of the wires, the internal resistance of each cell is approximately 1.33 Ω.

Learn more about Ohm’s law here:

https://brainly.com/question/1247379

#SPJ11

Answer:

Explanation:

The important part about this problem is the acceleration, which you must find by using

F = ma,

where F is the force applied,

m is the mass,

and a is the acceleration.

F = ma

10.1 N = (12.3 kg)a

a = 0.8211 m/s^2

Now use the kinematics equations.

d = vot + (1/2)at^2

where d is the distance moved,

vo is the initial velocity (0),

a is the acceleration,

and t is the time.

d = vot + (1/2)at^2

d = (0 m/s)(2.5 s) + (1/2)(0.8211 m/s^2)(2.5 s)^2

d = 2.57 m

a. The acceleration of the cart, is 0.821 \(m/s^2\).

b. The car moved a distance of 30.63 meters starting from rest.

Given the following data:

a. To find the acceleration of the cart, we would apply Newton's Second Law of Motion:

Mathematically, Newton's Second Law of Motion is given by this formula;

\(Acceleration = \frac{Force}{Mass}\)

Substituting the given values, we have;

\(Acceleration = \frac{10.1}{12.3}\)

Acceleration = 0.821 \(m/s^2\)

Therefore, the acceleration of the cart, is 0.821 \(m/s^2\).

b. To find the distance covered by the shopping cart, we would use the second equation of motion.

Mathematically, the second equation of motion is given by the formula;

\(S = ut + \frac{1}{2} at^2\)

Where:

Substituting the values into the formula, we have;

\(S = 0(2.5) + \frac{1}{2} (9.8)(2.5)^2\\\\S = 0 + 4.9(6.25)\)

Distance, S = 30.63 meters.

Therefore, the car moved a distance of 30.63 meters starting from rest.

Read more: https://brainly.com/question/8898885