Which is greater speed: a mall swimming 14 miles in 20 minutes or a great white shark swimming 15 miles in 25 minutes?

If Bill is traveling at v mi/h, Daemon's speed in mi/h if he was traveling 30mi/h faster can be represented as (v + 30) mi/h. This is because if Bill is traveling at v mi/h and Daemon is traveling 30 mi/h faster than him, then Daemon's speed will be v + 30 mi/h.

How to represent Daemon's speed in mi/h if he was traveling 30mi/h faster?

If Bill is traveling at v mi/h, then his speed can be represented as v mi/h. Now, if Daemon is traveling 30 mi/h faster than Bill, then we add 30 to Bill's speed and get the speed at which Daemon is traveling. Therefore, the speed at which Daemon is traveling can be represented as (v + 30) mi/h.

Learn more about speed from :

https://brainly.com/question/13943409

#SPJ11

While parked, the static friction is what is acting on the car. When the car is started and begins to move the sliding friction acts on it. When the car starts to accelerate the rolling friction would begin to act on it.

When the car is parked on the hill, static friction is acting on the car to keep it from sliding down the hill. Static friction is the force that opposes the motion of an object when it is stationary or at rest.

When the driver starts the car, the car begins to move and sliding friction takes over. Sliding friction is the force that opposes the motion of an object when it is sliding or moving. In this case, sliding friction acts between the tires and the road to slow down the motion of the car.

As the car accelerates, rolling friction starts to act. Rolling friction is the force that opposes the motion of an object when it is rolling. In this case, rolling friction acts between the tires and the road to slow down the rotation of the wheels as they roll on the surface of the road. The rolling friction is typically lower than sliding friction, which makes it easier for the car to maintain a constant speed.

When the driver steps on the brakes, static friction takes over again to slow down the car. The brake pads are pressed against the spinning wheels, and the static friction between the brake pads and the wheels slows down the motion of the car. If the brakes are applied too hard, the wheels may start to slide, and sliding friction will take over again.

In summary, the three types of friction - static, sliding, and rolling - act at different times during the motion of the car. Static friction keeps the car from moving when it is parked on the hill, sliding friction acts when the car is accelerating or decelerating, and rolling friction acts when the car is driving at a constant speed.

Read more on friction here:https://brainly.com/question/24338873

#SPJ1

The net charge of a system that consists of 9 protons and 2 electrons can be determined by considering the fact that the proton has a charge of +1 and the electron has a charge of -1.

Thus, the net charge will be the sum of all the charges of the particles within the system. That is:main answer: Net charge = (9 protons) x (+1) + (2 electrons) x (-1) Charge of a proton = +1Charge of an electron = -1Therefore, net charge = (9 x 1) + (2 x -1)= 9 - 2= 7

Hence, the net charge of a system consisting of 9 protons and 2 electrons is 7. If the multiplier is assumed to be 10^-19, the net charge can be written as 7 x 10^-19 C.

TO know more about that charge visit:

https://brainly.com/question/13871705

#SPJ11

Answer:

All objects are composed of these atoms. ... Charged objects have an imbalance of charge - either more negative electrons than positive protons or vice versa. And neutral objects have a balance of charge - equal numbers of protons and electrons.

Explanation:

Answer:

the reaction force is to the left and of the same magnitude

Explanation:

To analyze this collision we see that when the bowling ball collides with the pin it exerts a force on it and by the law of action and reaction the pin exerts a force of equal magnitude and opposite direction on the ball.

Due to the high difference in mass, the speed and direction of the bowling ball is little altered, instead the speed and direction of the pin change significantly.

In summary the reaction force is to the left and of the same magnitude

Answer:

The force that happens between two particles with mass

Answer:

C, proof that the driver has life insurance.

Explanation:

Answer:

Destructive interference occurs when the maxima of two waves are 180 degrees out of phase: a positive displacement of one wave is cancelled exactly by a negative displacement of the other wave. The amplitude of the resulting wave is zero.

Explanation: hope it helps :)

Answer:

The basic requirement for destructive interference is that the two waves are shifted by half a wavelength. This means that the path difference for the two waves must be: R1 R2 = l /2.

Explanation:

Answer:

Explanation:

That electrical energy will be dissipated in the form of heat, heating up the wire in the process. This heating is called Joule heating (James Prescott Joule) or ohmic heating or resistive heating. Which tells us that lower resistance (R) will produce higher current. Therefore lower resistance produces more heat.

ud = 0.511kg

od = 0.0525m

density = 4396.77 kg/m^3

(a) The approximate value of the mass, ud, is (1.0+0.022)/2 = 0.511 kg.

(b) The approximate value of the length, od, is (0.1+0.005)/2 = 0.0525 m.

(c) The estimated density can be calculated using the formula D = M/L^3.

          D = 0.511/(0.0525)^3 = 4396.77 kg/m^3.
To calculate the estimated error, we can use the formula for the propagation of errors, which states that the error in a function of two independent variables is the square root of the sum of the squares of the individual errors. In this case, the error in the density is given by:
error = sqrt((dD/dM * error in M)^2 + (dD/dL * error in L)^2)
where dD/dM = 1/L^3, dD/dL = -3M/L^4, error in M = (0.022-1.0)/2 = 0.489 kg, and error in L = (0.0052-0.1)/2 = 0.0474 m.
Substituting the values, we get:
error = sqrt((1/(0.0525)^3 * 0.489)^2 + (-3*0.511/(0.0525)^4 * 0.0474)^2) = 256.88 kg/m^3.
Therefore, the estimated density with the error in engineering notation is:
D = 4400 +/- 260 kg/m^3.

To learn more about, Propagation of Errors, visit: https://brainly.com/question/30765830

#SPJ11

Answi am sorry but i do not know the answer

Explanation:

The question addresses the stability of the atmosphere and the factors that determine convective stability or instability. It also explains the difference between the adiabatic lapse rate of dry air and wet saturated air.

a) The stability of the atmosphere is determined by the temperature profile and relative densities of the air cell and atmosphere. If the temperature of the surrounding atmosphere decreases with altitude at a rate greater than the adiabatic lapse rate of the air cell, the atmosphere is considered convectively stable.

In this case, the air cell will return to its original position. Conversely, if the temperature of the surrounding atmosphere decreases slower than the adiabatic lapse rate of the air cell, the atmosphere is convectively unstable. The air cell will continue moving in the same direction.

b) The adiabatic lapse rate refers to the rate at which temperature decreases with altitude for a parcel of air lifted or descending adiabatically (without exchanging heat with its surroundings). The adiabatic lapse rate of dry air is higher (around \(9.8^0C\) per kilometer) compared to the adiabatic lapse rate of wet saturated air (around 5°C per kilometer).

This difference arises because when water vapor condenses during the ascent of saturated air, latent heat is released, reducing the rate of temperature decrease. A diagram can illustrate the difference between the two lapse rates, showcasing their respective slopes.

c) When wet unsaturated air rises from the ocean surface, its temperature decreases at a rate equal to the dry adiabatic lapse rate. However, if the ambient lapse rate (temperature decrease with altitude) is higher than the adiabatic lapse rate for dry air, a temperature inversion layer forms at higher altitudes.

In this inversion layer, the temperature increases with altitude instead of decreasing. A schematic diagram can depict the temperature changes of the wet air in comparison to the ambient temperature, showing the inversion layer.

Cumulus clouds form at the altitude where the rising moist air reaches the level of the temperature inversion layer. These clouds are formed due to the condensation of water vapor as the air parcel cools to its dew point temperature.

Learn more about adiabatic lapse rates here:

https://brainly.com/question/30023377

#SPJ11

Answer: Your using your skeletal muscle

Explanation:

Answer:

I think is 3 I am not sure

Answer:

Explanation:

all

VC = 0.707Vpeak when f = 12fc, VC = 0.5Vpeak when f = fc, and VC = 0.293Vpeak when f = 2fc.

The impedance of a capacitor (ZC) in an AC circuit is given by ZC = 1/(jwC), where j is the imaginary unit, w is the angular frequency, and C is the capacitance. The impedance of a resistor (ZR) is given by ZR = R. The total impedance of a series RC circuit is Z = ZR + ZC = R + 1/(jwC). The voltage across the capacitor (VC) is given by VC = Vpeak × ZC/(ZC + ZR) = Vpeak/(1 + jwRC), where Vpeak is the peak voltage of the AC source.

When f = 12fc, w = 24pi, and

VC = Vpeak/√(1 + (24pi159116e-6)²) = 0.707Vpeak.

When f = fc, w = 2pi, and

VC = Vpeak/√(1 + (2pi159116e-6)²) = 0.5Vpeak.

When f = 2fc, w = 4pi, and

VC = Vpeak/√(1 + (4pi159116e-6)²) = 0.293Vpeak.

To learn more about capacitor, here

https://brainly.com/question/17176550

#SPJ4

The circuit you are describing is a simple RC series circuit, which acts as a low-pass filter. The voltage across the capacitor, VC, is given by the following equation:

VC = Vpeak / √(1 + (2πfRC)^2)

where V peak is the peak voltage of the AC source, f is the frequency of the AC source, R is the resistance of the resistor, and C is the capacitance of the capacitor.

For this circuit, we have C = 116 μF and R = 159 Ω.

Part A: When f = 12fc

Here, fc is the cutoff frequency of the filter, which is given by:

fc = 1 / (2πRC)

Substituting the given values, we get:

fc = 1 / (2π x 159 Ω x 116 μF) ≈ 91 Hz

Therefore, 12fc = 1,092 Hz.

Substituting these values into the equation for VC, we get:

VC = 4.40 V / √(1 + (2π x 1,092 Hz x 159 Ω x 116 μF)^2) ≈ 0.163 V

Thus, when the frequency is 12 times the cutoff frequency, VC is approximately 0.163 V.

Part B: When f = fc

Substituting fc = 91 Hz into the equation for VC, we get:

VC = 4.40 V / √(1 + (2π x 91 Hz x 159 Ω x 116 μF)^2) ≈ 0.689 V

Thus, when the frequency is equal to the cutoff frequency, VC is approximately 0.689 V.

Part C: When f = 2fc

Substituting 2fc = 182 Hz into the equation for VC, we get:

VC = 4.40 V / √(1 + (2π x 182 Hz x 159 Ω x 116 μF)^2) ≈ 1.15 V

Thus, when the frequency is twice the cutoff frequency, VC is approximately 1.15 V.

Learn more about  simple RC series circuit here : brainly.com/question/21092195

#SPJ11

Answer:

The energy transferred to the gas is 9 mJ

Explanation:

Given;

initial volume of the gas, v₁ = 5 x 10⁻⁵ m³

final volume of the gas, v₂ = 4.7 x 10⁻⁵ m³

initial pressure of the gas, P₁ = 5.4 x 10⁴ Pa

final pressure of the gas, P₂ = 5.7 x 10⁴ Pa

The work done in compressing the gas is given by;

W = ΔPV = (P₂ - P₁)(V₂ - V₁)

W = (5.7 x 10⁴ Pa - 5.4 x 10⁴ Pa)(4.7 x 10⁻⁵ m³ - 5 x 10⁻⁵ m³)

W = (3000)( -3 x 10⁻⁶)

W = - 9  x 10⁻³ J

W = -9 mJ

Thus, the work done in compressing this gas is equal to the energy transferred to the gas = 9 mJ

Explanation:

hug is not the only solution to help someone you can take them to Peaceful place and sit with them saying nothing.

Outside horse ,On a merry-go-round, both inside and outside horses complete a round in the same amount of time. However, the outside horse has to cover a greater distance due to a larger circumference. Since speed is calculated by dividing distance by time, the outside horse has a higher speed in m/s compared to the inside horse.so ,correct option is b.

The horse on the outside near the outer rail moves faster in m/s on a merry-go-round. This is because the speed of each horse is determined by the distance it travels in a certain amount of time. The outside horse has to travel a larger distance in the same amount of time as the inside horse due to the larger circumference of the outer rail. Therefore, it has a higher speed than the inside horse. In a 100 words summary, the outside horse moves faster in m/s on a merry-go-round because it has to cover a larger distance in the same amount of time as compared to the inside horse due to the larger circumference of the outer rail. This results in a higher speed for the outside horse.

To know more about Speed Visit:

https://brainly.com/question/17661499

#SPJ11

Answer:

Forces make things speed up (or accelerate). When a force pushes or pulls the object, the object will move in the direction of the force. The bigger the force, and the lighter the object, the greater the acceleration.

Explanation:

Answer:

about 343 metres per second

Temperature is a measure of the average energy of particles in a substance is true.

Temperature is indeed a measure of the average energy of particles in a substance. Temperature reflects the kinetic energy of the particles, which is related to their random motion. In a substance, the particles are in constant motion, and their individual energies contribute to the overall temperature of the substance. A higher temperature indicates that, on average, the particles possess greater energy and are moving more vigorously. Conversely, a lower temperature signifies lower average energy and slower particle motion. Temperature is typically measured using various scales, such as Celsius, Fahrenheit, or Kelvin, and it serves as a fundamental parameter in thermodynamics and many other scientific disciplines.

To learn more about Temperature

https://brainly.com/question/31197221

#SPJ11

Answer:para enxergar

Explanation:

If a fish looks upward at 45 degrees with respect to the water's surface, it will see option a, the sky and possibly some hills.

When a fish looks upward at a 45-degree angle with respect to the water's surface, it will see the sky and possibly some hills. This is because light rays refract when they pass from one medium to another with different optical densities.

As light travels from air to water, it slows down, and its path bends towards the normal, which is perpendicular to the water's surface. This bending of light is called refraction. When the fish looks upwards, it sees the light that has been refracted by the water, and this light carries information about the sky and the surrounding landscape.

However, the amount of refraction depends on the angle of incidence of the light ray, so the fish will not see the entire sky but only a portion of it. At a 45-degree angle, the fish will see a wider view of the sky and possibly some hills, depending on the surrounding topography. Therefore, the fish will not see the bottom of the pond, which is below its line of sight.

Learn more about surface  here:

https://brainly.com/question/28267043

#SPJ11

The ratio of the newly allowed intensity to the previously allowed intensity is 3.1623 x 10⁻³.

Banks says a leaf blower makes 64 to 78 decibels at 50 feet. To the operator's ear, the noise is 95-115 decibels. According to Dangerous Decibels, a public-private partnership aimed at reducing hearing loss, typical speech is around 60 decibels, washing machines 75 decibels, and chainsaws 115 decibels.

Performance that fits your needs. Setting the motor to a low speed makes less noise. According to the American Green Zone Alliance, an organization dedicated to zero-emission landscaping, the average fan produces about 65 dB of noise. Compare this to the average noise level of a traditional gas backpack blower.

Learn more about The ratio here:- https://brainly.com/question/2328454

#SPJ4

In order for a single magnifying glass to magnify an object, the lens must have a convex shape.

A convex lens curves outward and is thicker at the center than at the edges. When light passes through a convex lens, it refracts or bends inward, converging at a focal point. This allows the lens to create a magnified image of the object being viewed.

The distance between the object and the lens, as well as the distance between the lens and the viewer's eye, will also affect the magnification. Additionally, the lens must be positioned at the correct distance from the object to produce a clear, focused image.

To know more about object visit:

https://brainly.com/question/14921011

#SPJ11

A rogue planet or planetary mass object is a celestial body that is not gravitationally bound to any particular star and does not orbit around it.

These objects can either be ejected from their original star system or may have formed independently. Due to their lack of a central star, rogue planets can be difficult to detect and are often discovered through their gravitational effects on other nearby objects. Despite their isolated existence, these rogue planets can still have their own moons and even support life, depending on factors such as their size, composition, and distance from any potential heat source.
A rogue planet, also known as a planetary-mass object, is a celestial body that does not orbit around any particular star. These objects have masses similar to planets but are not gravitationally bound to a star, thus making them "rogue" in nature as they freely move through space.

Visit here to learn more about rogue planet:

brainly.com/question/31627386

#SPJ11