A driver starts his parked car and within 5 hr reaches a speed of 60 km/h, as he travels east. what is his acceleration?

Answer:

Explanation:

While pure science deals with knowledge discovery Applied science deals with knowledge use

The major method scientists use to share their research findings with other scientists is (b) peer-reviewed journals.

The primary means through which scientists disseminate the results of their study to other scientists is through peer-reviewed publications. Research articles are submitted by scientists in this method to respectable scientific publications.

The papers are next subjected to a thorough examination by a group of subject-matter specialists known as peers or referees. Prior to being approved for publication, these experts evaluate the research's quality, validity, and importance.

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Answer:

biology. hope this helps

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The object travels a distance of =54m If starts with initial velocity of 12m/s.

Velocity is the high indicator of the position in addition to the rapidity of the object. it is able to be defined as the distance blanketed by means of an object in unit time. velocity can be described because the displacement of the item in unit time. Pace is the time price at which an object is transferring along a path, whilst speed is the rate and direction of an object's motion.

Velocity is a vector expression of the displacement that an object or particle undergoes with appreciate to time. velocity is defined as a vector size of the price and route of motion. put really, velocity is the velocity at which some thing moves in one path. the speed of a car traveling north on a primary parkway and the velocity a rocket launching into space can both be measured the usage of velocity.

Given,

   Acceleration =  4 m/s^2

 Time = 3 second

S = u t +1/2at²

s=12*3+0.5*4*3*3

=36+18

=54m                          answer

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Answer:

125.44 N

Explanation:

From the question given above, the following data were obtained:

Weight on earth = 784 N

Acceleration due to gravity of the moon (gₘ) = 1.6 m/s²

Weight on moon =?

Next, we shall determine the mass of the person. This can be obtained as follow:

Weight on earth (Wₑ) = 784 N

Acceleration due to gravity of earth (gₑ) = 10 m/s²

Mass (m) =?

Wₑ = m × gₑ

784 = mass × 10

Divide both side by 10

Mass = 784 / 10

Mass = 78.4 Kg

Finally, we shall determine the weight of the person on moon. This can be obtained as follow:

Mass (m) = constant = 78.4 Kg

Acceleration due to gravity of the moon (gₘ) = 1.6 m/s²

Weight on moon (Wₘ) =?

Wₘ = m × gₘ

Wₘ = 78.4 × 1.6

Wₘ = 125.44 N

Therefore, the weight of the person on moon is 125.44 N.

Answer:

the volume of the cone is \(4778.36 cm^3\)

Explanation:

The computation of the volume of the cone is shown below:

As we know that

The Volume of the cone is

r denotes the radius

And, h denotes the height

So,

\(= \frac{1}{3} \pi r^2 h \\\\= \frac{1}{3} \times 3.14 \times 13^2 \times 27\\\\= 4778.36 cm^3\)

Hence, the volume of the cone is \(4778.36 cm^3\)

Answer:

natural is the answer

Friction is a natural force which exist

The force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

The spring constant is the force needed to stretch or compress a spring, divided by the compressive or expansive distance. It's used to determine stability or instability in the spring, and therefore the system it's intended for. we know,

F = kx

Therefore,

k = F/x

We also know that the force being exerted on the spring is equal to the mass of the object. Hence, F = mg = 5.13 * 9.8 N = 50.174 N and we know compression due to the mass is 0.25m. Therefore,

K = 50.174/0.25 N/m

K = 200.696 N/m

Therefore, The Spring Constant is 200.696 N/m

On release, the spring potential energy gets converted to kinetic energy. Hence, on release, the height attained by the object is given by:

h = \(1/2 kx^{2}\)

We know that k=200.696 N/m and x=0.25 m. Therefore the height is:

h = \(1/2 (200.696 N/m)(0.25 m)^{2}\)

h = 2.5087 m

Therefore, the force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

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Given that the progressive wave equation is represented by y=Asin2π(0.15t-0.1x). Let's find the period, amplitude, frequency, wavelength, and velocity.

The wave equation is represented by y=Asin2π(0.15t-0.1x). The standard wave equation can be written asy = Asin(kx-ωt + Φ)Where,k = wave numberω = angular frequencyΦ = phase angle for the given equation, k = 0.1 and ω = 0.15.Amplitude:

Amplitude = A = maximum displacement from the mean position.A = 1Frequency: Frequency is the number of complete oscillations made by a point on the wave in one second. It is denoted by f.f = ω/2πFrequency, f = 0.15/2π = 0.0238 HzPeriod: Period is the time taken by one complete oscillation.

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The correct answer is(b). There is a physical change from the solid state to a gas state where energy between the molecules increases.

During sublimation, carbon dioxide transitions directly from the solid state (dry ice) to the gas state without passing through the liquid phase. In this process, individual molecules of carbon dioxide gain energy from the surroundings, leading to an increase in their kinetic energy and molecular movement.

As a result, the carbon dioxide molecules separate from each other and form a gas. This phase change is considered a physical change rather than a chemical change since the chemical composition of carbon dioxide remains the same throughout the process.

Therefore, the sublimation of carbon dioxide results in a physical change where the molecules transition from the solid state to the gas state, gaining energy and increasing their molecular movement.

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The "price" that you have to pay for this help is by covering more distance

when using it.

Wheel and axle is a type of lever which has three properties present and

they include

It helps to reduce the force needed to do work and makes it easier thereby

saving strength and resources. Work done is the product of force and

distance traveled.

Since force is reduced in this type of lever then more distance has to be

covered for work to be done efficiently.

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Answer:

Explanation:

Because the total energy available to the ball doesn't change whatsoever during its entire trip from the window to the ground,

TE = KE + PE which says that the total energy available to a system is equal to the kinetic energy of the system plus the potential energy, and that this value will not ever change (because energy cannot be created or destroyed. Sound familiar?) If the ball is being held still before it is dropped from some height off the ground, it is here that the total energy can be determined, and that total energy at this point is all potential, since the ball is not moving while someone is holding it and getting ready to drop it. The SECOND it starts to fall, the potential energy begins to be converted to kinetic. As the potential energy is losing value, the kinetic is gaining it at the same rate (again, energy doesn't just disappear; it has to go somewhere. Here, it goes from potential to kinetic a little at a time). When the ball finally hits the ground, or an INSTANT BEFORE it hits the ground, the potential energy is 0 because the height of something on the ground has a height of 0. At this instant, right before the ball hits the ground, is where the KE is the greatest. All the energy at that point has been converted from potential to kinetic.

Long story short, choice B is the one you want.

Answer:

sulphite is what equation

Explanation:

gas

liquid

solid

aqueous

78° C is equal to 351.15 kelvin, -89.2 °Celsius is equal to -128.6° Fahrenheit, and 986 kelvin is equal to the  1315.13° Fahrenheit.

We know that 1 Celsius is equal to 274.15 Kelvin.

So if we convert the value of 78° C to kelvin, then we get the final value of kelvin with the help of using formula 78°C + 273.15 = 351.15K

We know that 1 Celsius is equal to 33.8 Fahrenheit, then with the help of the formula (-89.2°C × 9/5) + 32 = -128.6°F.

We know that 1 kelvin is equal to -457.87 Fahrenheit, then with the help of the formula, we get (986K − 273.15) × 9/5 + 32 = 1315.13°F.

So we can conclude that 78° C is equal to 351.15 kelvin, -89.2 °C is equal to -128.6° Fahrenheit, and 986 kelvin is equal to 1315.13° Fahrenheit.

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Kepler's third law states that the square of the period of a planet's orbit around the sun is proportional to the cube of its average distance from the sun.

Kepler's third law, also known as the law of harmonies, is a mathematical relationship that describes the motion of planets around the sun. It states that the ratio of the cube of a planet's average distance from the sun to the square of its orbital period is constant for all planets in the solar system.

Mathematically, this can be expressed as T^2 = k*R^3, where T is the orbital period of the planet, R is its average distance from the sun, and k is a constant of proportionality. Kepler's third law is an important tool for astronomers to study and understand the dynamics of the solar system.

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The common kinetic energy of the device is quality described through the word temperature.

Kinetic electricity is the power that an object possesses because of its mobility from one location to another. In a comparable vein, a system's temperature measures the average amount of kinetic strength in motion. As a end result, as molecules pass (circulate) greater swiftly in a device, the gadget's temperature rises because of heat being absorbed and an growth inside the average kinetic energy of the device.

clearly put, the size of temperature is how warm or bloodless some thing is basically, a thermometer is used to measure an object's temperature, and its units are;

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The mass of satellite B is equal to 2 X 10³ Kg.

Mass of satellite A = m = 1.5 X 10³ Kg

Mass of satellite B = m'

Velocity of satellite A = v = 8 X 10³ m/s

Velocity of satellite B = v' = 6 X 10³ m/s

To find mass of satellite B = m' =

Using the theorem of conservation of linear momentum we get,

= momentum of satellites initially = momentum of satellites finally

= mv + m'v' = m(0) + m'(0)

= mv + m'(-v') = 0

= mv = + (m'v')

= 1.5 X 10³ X 8 X 10³ = m' X 6 X 10³

= m' = ( 1.5 X 10³ X 8 X 10³ ) / 6 X 10³

= m' = 2000 Kg

Thus, mass of satellite B is 2 X 10³ Kg.

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Answer: Yes its tilted.

Explanation:

3 Degrees.

The scout rocket is approaching the asteroid at a speed of  0.882 times the speed of light.

The formula of velocity is as follows:

v' = (v1 + v2) / (1 + (v1 * v2) / c^2)

Where:

v' is the relative velocity of the scout rocket with respect to the asteroid

v1 is the velocity of the scout rocket relative to the spaceship (0.40c)

v2 is the velocity of the spaceship relative to the asteroid (0.60c)

c is the speed of light in a vacuum (approximately 3.00 × 10⁸8 m/s)

Substitute the values, we have:

v' = (0.40c + 0.60c) / (1 + (0.40c × 0.60c) / (3.00 × 10₈ m/s)₂)

Simplifying the equation, :

v' = (1.00c) / (1 + (0.24c²) / (9.00 × 10¹⁶ m²/s²))

v' = 0.882c

0.882 times the speed of light the scout rocket approaches the asteroid.

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The bunny’s displacement at t=12 s is 12 m.

The bunny’s acceleration when slowing down is -0.083 m/s².

The displacement of an object is the change in position of the object.

The displacement of the object at time, t = 12 seconds, is the change in position from time, t = 0 seconds to time, t = 12 seconds.

Δx = v(t₂ - t₁)

Δx = 1 m/s (12 s - 0 s)

Δx = 12 m

The bunny’s acceleration when slowing down is calculated as follows;

a = (v - u)/(t₂ - t₁)

a = (0 - 1 m/s) / (12 s - 0 s)

a = -0.083 m/s²

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Answer:

The bunny’s displacement at t=12 s is 12 m.

The bunny’s acceleration when slowing down is -0.083 m/s².

Answer:

it’s c

Explanation:

Answer:

The length of line is 78 cm or 0.78 m.

Explanation:

initial reading 2 mark

final reading 80 cm

The length of the line

= final reading - initial reading

= 80 - 2

= 78 cm

1 cm = 0.01  m

So, 78 cm = 0.78 m

Answer:

for resistors in series, add the resistances to get their equivalence. The answer is

80.0 Ohms

ACC provides an optimized tip clearance, thus aiding turbine engine efficiency.

The Active Clearance Control (ACC) portion of an EEC (Electronic Engine Control) system aids turbine engine efficiency by providing an optimized tip clearance.

Electronic Engine Control (EEC) is an automated engine control system that governs engine functions like fuel management, ignition, and other engine functions, replacing manual controls. This system aims to provide precise control of engine functions to ensure efficient operation and optimal performance.In modern EEC systems, a sophisticated feedback loop is used to detect engine parameters, including air temperature, pressure, fuel flow, and many others. The data received from these sensors is then transmitted to the EEC unit, which makes decisions about the engine's functioning, such as fuel injection and ignition timing. The EEC is an essential component of many modern gas turbine engines. Its accurate engine control results in improved efficiency, lower fuel consumption, and better emissions.The Active Clearance Control (ACC) portion of an EEC systemThe Active Clearance Control (ACC) portion of an EEC system is used to regulate turbine blade tip clearances during engine operation. The ACC regulates turbine blade tip clearances by adjusting the blade angle or moving shrouds to optimize the gap between the blades and the engine's housing. It does so by receiving data from sensors that monitor the engine's operating temperature and pressure. The ACC can modify the blade angle in response to changes in temperature or pressure, ensuring that the engine operates at maximum efficiency throughout its range of operations. Therefore, ACC provides an optimized tip clearance, thus aiding turbine engine efficiency.

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A CP air mass remaining stationary over central Canada would not result in the modification of the air mass.

An air mass is a large body of air with the same temperature and moisture content as the surface over which it was created. The characteristics of an air mass are determined by the properties of the area over which it was created. Air masses are designated based on their region of origin.

The air masses are modified as they move away from their source areas by passing over different regions of the earth's surface with contrasting characteristics.

When an air mass moves over an area with a different climate than the air mass's origin, the air mass is modified. The new surface over which it passes alters the air mass's temperature and moisture content. When an air mass is created over an area with contrasting climate characteristics, it is said to be unmodified.

Thus, a CP air mass remaining stationary over central Canada would not result in the modification of the air mass, and therefore it would be unmodified.

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The correct answer is Upthrust= 0.7N and Volume = 1.02 x 10⁻² g

Solid weighs.09 N in air.

Solid weighs less than liquid because of an upward force operating on it (solid weighs in liquid =.02 N).

A solid body experiences an upthrust when it is partially or entirely submerged in a fluid, such as water. In this case, the fluid's weight (water) equals the fluid's weight that the water has displaced.

upthrust is = to.09 -.02 N = 0.7N.

Upthrust = displaced liquid's weight

so that weight of liquid equal to volume of solid = 0.7 N

Volume of solid times mass of liquid = 0.07/9.8 = 0.00714 =  7.14 x 10⁻³ kg

Volume = Mass / density

Volume = 7.14 x 10⁻³ / 700

= 1.02 x 10⁻⁵ kg= 1.02 x 10⁻² g

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Answer:

0

Explanation:

No work is done by the man since we do not know the distance or displacement.

Work is only said to be done when the force applied on an object moves it through a particular distance.

 Work done  = Force x distance.

Since no distance is given in this problem, we can as well assume that the force applied is doing no work on the object.

Electric current ceases to flow when the potential difference is zero. It implies that the potential for two ends is equal. The difference in electric potential between two sites controls the passage of charges between them.

Since electrons strive to move in the opposite way of conventional current, which flows from higher potential "A" to lower potential "B," when they actually want to move in the opposite direction from negative (lower potential) to positive (higher potential).

Zero potential roughly translates to your system's charges canceling each other out. Potential is 0, for instance, at the exact halfway point (or other equivalent distance from them) between two point charges that are equally and oppositely charged.

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