6. A Cadillac Escalade has a mass of 2 569.6 kg, if it accelerates at 4.65m/S
force on the car?

Answer: 1 dioptre of power of a lens is defined as the unit of measuring the power of optical lens Or curved mirror which is equal to the reciprocal of the focal length. The focal length is measured in the meter. 1 dioptre is equal to 1/m where m is the focal length. Basically dioptre is the SI unit of optical power of the lens.

Answer:

Production of plaster of Paris for construction

Used for soil conditioning

Ornamental purposes

Explanation:

Gypsum is a calcium sulfate mineral with some alluring and aesthetic value.

The mineral occurs as a chemical sedimentary rock which forms as an evaporite in basins of deposition.

  Here some of the uses;

Answer:

Always store brake fluid in its original container and make sure the cap is very tight. ...

Never reuse brake fluid that has been drained from the brake system or even fresh fluid that has been allowed to sit in an open container, because brake fluid is quickly contaminated by dust, air, and moisture. Eyes: Eye contact will cause irritation. ...

Skin: Wash well with soap and water. ...

Ingestion: If a substantial quantity is ingested, obtain medical attention immediately.

Aspiration: Obtain medical attention immediately.

Inhalation: In the unlikely event of inhalation, remove from exposure and obtain medical attention.

Explanation:

When handling brake fluid, it is important to wear protective clothing and equipment, avoid inhalation and ingestion, avoid skin contact, and store and dispose of it properly.

When handling brake fluid, there are several precautions that should be followed to ensure safety:

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Answer:

Explanation:

As with all atoms known, electrons moves in discrete energy levels round a well defined orbit.

Protons are restricted to the nucleus of an atom. They occupy this small and massive position along with the neutrons.

Metals, have a large dense cloud of electrons.

Therefore, it is safe to conclude that in metal conductors, electrons move but protons do not just like in every other atom.

Protons do not move in a metal conductor because they are stable in the nucleus.

A conductor is a type of material that allows the flow of charge (electric current) in one or more directions.

In metallic conductors, the movable charged particles are electrons, though in other cases they can be ions.

Every atom of a conductor consists of three particles protons, neutrons and electrons.

Protons are attracted to both other protons as well as neutrons. So inside a nucleus, there exists a battle between electrical repulsion and nuclear attraction. The proton by itself is stable but the strong force is not quite strong enough to bind two protons.

Hence we can conclude that in a metal conductor, electron moves but protons do not move.

To know more about the conductors, follow the link given below.

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The power of Joshua williams is 44.1HP

Explanation:

Given,

Mass of Joshua, m1 = 50kg

Mass of the suitcase, m2 = 10kg

Total mass, m = m1 + m2

m = 50 + 10kg

m = 60kg

Time, t = 40s

Height, h = 3m

Power, P = ?

We know,

Acceleration due to gravity, g = 9.8m/s²

Work, W = m X g X h

W = 60 X 9.8 X 3

W = 1764J

[tex]Power = \frac{Work}{Time} \\[/tex]

[tex]P = \frac{1764}{40} \\\\P = 44.1HP[/tex]

Therefore, power of Joshua williams is 44.1HP

Celsius . . . negative 273.15 degrees

Kelvin . . . . zero of them

Final answer:

The lowest temperature on the Celsius scale is -273.15 °C and on the Kelvin scale is 0 K, both representing absolute zero. The kelvin is an absolute temperature unit used in science, with the freezing and boiling points of water at 273.15 K and 373.15 K respectively.

Explanation:

The lowest possible temperature on the Celsius scale is -273.15 °C, which is known as absolute zero. On the Kelvin scale, the lowest possible temperature is 0 K, also representing absolute zero. Absolute zero is the temperature at which all molecular motion ceases, making it the point where no thermal energy is produced by molecular motion. As the Kelvin scale is an absolute temperature scale used extensively in scientific work, it defines 0 K as the point of absolute zero. Unlike other temperature scales, it has no negative values, and the official temperature unit of this scale is the kelvin, simply abbreviated as K without a degree sign.

The Kelvin scale's importance stems from many physical quantities, such as the volume of an ideal gas, being directly related to absolute temperature. The Celsius and Kelvin scales are aligned such that the freezing and boiling points of water are 273.15 K and 373.15 K, respectively, meaning that the magnitude of temperature differences is the same in units of kelvins and degrees Celsius.

The case considered is of a kerosene lamp. Kerosene acts as a fuel to generate light. It undergoes combustion where it reacts with oxygen in the air to release light. The wick draws the kerosene and burns it. To increase the amount of time the lantern provides, we can decrease the length of the wick to avoid more consumption of the kerosene. Before lighting the wick, we first need to check the quantity of the kerosene present and also ensure to change the wick at least once a year.

Final answer:

To increase the burn-time of a lantern, one could use a larger kerosene supply, a more efficient wick, higher-grade kerosene, and ensure adequate oxygen supply. Similar to how argon extends the life of incandescent bulbs, optimizing lantern conditions prolongs its light duration.

Explanation:

When the wick of a lantern is lit, the kerosene undergoes a chemical reaction with oxygen, producing light through the release of energy. To increase the amount of time the lantern provides light, one can replace the consumed kerosene with a larger supply or use a wick that delivers the kerosene more slowly to the flame. Another method involves using a higher-grade kerosene that burns more efficiently, thus slowing down the rate at which it is used up.

Additionally, ensuring that the lantern is kept in an environment with adequate oxygen supply will prevent the flame from going out prematurely. Reflecting on the provided information, we can also look at how inert gases in light bulbs function to increase efficiency and longevity; similarly, optimizing the conditions for the lantern's operation can extend its burn time.

Just as argon helps to extend the life of incandescent lamp bulbs, taking measures to prevent rapid consumption of kerosene will extend the burn-time of a lantern. In light bulbs, argon prevents tungsten atoms from blackening the bulb and concentrates them back onto the filament; a parallel in lanterns would be maintaining the purity and functionality of the kerosene and wick.

Complete Question:

A sailboat is moving at a constant velocity of 8 km/h eastward as shown in the picture below. Describe three forces acting on the boat. Explain how two of those forces affects the boat.

Answer:

The three forces acting on the sail boat is the forward force or the force with which the boat is moving, the frictional force or the resisting force by the water waves and the buoyant force acting on the body of the ship.

Explanation:

As the sailboat is moving with a velocity of 8 km/h towards east, then the pushing force is acting due to wind on the boat. So the wind is pushing the boat toward the east direction. But at the same time, the flow of water tides will provide a frictional or resisting force to the movement of ship.

So this resisting force by the tides on the sailboat is less compared to the force of the wind. So the boat is moving instead of collapsing. Similarly, another force acting on the boat will be the buoyant force.

This force will keep the boat on the surface of the water as a floating surface because of lesser density of boat compared to water. So the pushing force and the buoyant force helps in keeping the boat to be in motion and on surface of water.

Answer:

1. Equilibrium

2. Amplitude

3. Wavelength

4. Trough

5. Crest

6. Wavelength

7. Trough

8. Crest

Explanation:

Waves are the periodic disturbances in any medium. The common examples of waves are sound waves and water waves. In this figure, the several parts of waves have been described. Here, I will explain them one by one.

1. Consider a normal line, which we will take as a reference. We call it Equilibrium.

2. The vertical distance from Equilibrium to the highest or lowest point (also called peak points) of wave is called Amplitude.

3. The distance between two corresponding peak points is called Wavelength.

4. The lower part of the wave, which is below the equilibrium is called Trough.

5. The upper part of wave, which is above the equilibrium is called Crest.

6. Wavelength: As Explained in point 3

7. Trough: As Explained in point 4.

8. Crest: As Explained in point 5.

Answer:

An electrical cell is a device used to generate electricity, or to make chemical reactions by applying electricity.

Answer:

[tex]7.2\times 10^{-18}C[/tex]

Explanation:

-Let x be the charge of 45 electrons

-An electron has a relatively law mas.

-Using the law of proportions, the charge value of 45 electrons is calculated as:

[tex]1e=1.6 \times 10^{-19} coulomb\\45e=x\\\\x=\frac{45\times1.6 \times 10^{-19} coulomb}{1e}\\\\x=7.2\times 10^{-18}C[/tex]

Hence, the electron charge of 45 electrons is [tex]7.2\times 10^{-18}C[/tex]

Answer:

2100 J

Explanation:

The heat required to increase the temperature of a substance is given by

[tex]Q=mC\Delta T[/tex]

where

m is the mass of the substance

C is its specific heat capacity

[tex]\Delta T[/tex] is its change in temperature

For the water in this problem, we have:

m = 100 g is its mass

C = 4.2 J/g • °C is the specific heat capacity

[tex]\Delta T=5^{\circ}C[/tex] is the increase in temperature

So, the amount of heat needed is:

[tex]Q=(100)(4.2)(5)=2100 J[/tex]

Answer:

Correct option is (A).

Explanation:

Given data:

Volume, [tex]V = 3 \ cm^{3}[/tex]

Mass, [tex]m = 8.1 \ g[/tex]

The density of the aluminium can be given as,

[tex]d = \frac{m}{V}[/tex]

[tex]d = \frac{8.1 \ g}{3.0 \ cm^{3}}[/tex]

[tex]d = 2.7 \ g/cm^{3}.[/tex]

Answer: Point A

Explanation: Gravitational potential energy is the energy that an object has because of its height and is equal to the object’s mass multiplied by it’s height multiplied by the gravitational constant (PE = mgh). Gravitational potential energy is greatest at the highest point of a roller coaster and least at the lowest point.

Answer:

Point A

Explanation:

R = (ρ x l)/A [Resistance = resisitivity times length divided by area of cross-section]

0.5R = (ρ x 2.5l)/A'

0.5R/2.5 = (ρ x l)/A'

R/5 = (ρ x l)/A'

R = 5(ρ x l)/A'

(ρ x l)/A = 5(ρ x l)/A'

A' = 1/5 A

A' = 0.2 A

Answer: A₂ = 5A

Explanation:

L1 = L

A1 = A

R1 = R

R2 = 0.5R

L₂ = 2.5L

A2 =?

from resistance formula,

R = ρL / A

but since they are of the same material,

ρ₁ = ρ₂ = ρ

R₁ = ρL₁ / A₂ .....equation i

R₂ = ρL₂ / A₂......equation ii

dividing equation ii by i,

R₂ / R₁ = (L₂ / A₂) / (L₁ / A₁)....... [ρ cancles out]

R₂ / R₁ = (L₂ * A₁) / (A₂ * L₁)

0.5R / R = (2.5L * A) / (A₂*L)

0.5 = 2.5A / A₂

A₂ = 2.5A / 0.5

A₂ = 5A

sticky tape, increase, sticky thing cause some other things to stop

oil, decreas, oil is one of the slipprey things there is, so it would not help increase fricktion

water, again it will decrease

sand, it would decrease ,, making things difucoult to slide

wax, it would increase

work gloves would increase

hope this helps!

~ angilina

Final answer:

Common items like sticky tape, oil, water, sand, wax, work gloves, and grease can be used to either increase or decrease friction depending on the situation.

Explanation:

The common items can be used to either increase or decrease friction depending on the situation. Sticky tape can be used to increase friction when applied to surfaces to make them stick together. Oil, grease, and wax are commonly used as lubricants to decrease friction between surfaces, making them smoother and reducing resistance. Water and sand can be used to increase friction in certain situations, such as applying water to a surface to make it less slippery or using sandpaper to roughen a surface.

To find out how far the man drives, multiply his speed (45.8 m/s) by the time (362 s) to get a distance of 16,579.6 meters, or 16.5796 kilometers to the south.

To calculate how far the man gets when driving south at 45.8 m/s for 362 seconds, you use the formula for distance:

Distance = Speed × Time

In this case, the speed is 45.8 meters per second (m/s), and the time is 362 seconds. Thus, the distance traveled is:

Distance = 45.8 m/s × 362 s

After calculating this, you'll find that the man covers a distance of:

16,579.6 meters, which can be converted to kilometers (km) by dividing by 1000:

16.5796 kilometers (km)

This is the total distance traveled by the man to the south.

Final answer:

To determine how far the man drives, multiply his speed by the time traveled. Driving at 45.8 m/s for 362 seconds, he would travel 16565.6 meters, which is 16.566 kilometers south.

Explanation:

The question requires the calculation of distance traveled based on the given speed and time duration. To find the distance, one must use the formula for constant velocity, which is distance = speed × time. Since the man drives south for 362 seconds at 45.8 m/s, the calculation will be as follows:

Distance = Speed × Time

Distance = 45.8 m/s × 362 s

Distance = 16565.6 m

To convert meters to kilometers, divide by 1000:

Distance = 16565.6 m / 1000

Distance = 16.566 km

Therefore, the man gets 16.566 kilometers south.

The members of these groups make up the majority of voters in many districts thus this  be considered a problem.

Option: D

Explanation:

Interest groups play a key role in US politics. Such organizations are made up of wealthy and powerful members who often seek to impose some form of leverage in politicians to promote their goals and agendas. Across the years via many campaigns, they have understood how to speak and manipulate elected leaders and apply leverage to get the kind of legislation that is in their favor. Here the majority of voters in several districts are standing due to group members, as we recognize the interest group belongs to a body in which it uses different methods of lobbying to influence others.

Answer:

Hello, the tripping of a 230-kilovolt transmission line.

Explanation:

the tripping of a 230-kilovolt transmission line near Ontario, Canada, at 5:16 p.m., which caused several other heavily loaded lines also to fail. Hopefully this helps you find what your looking for!.

Answer:ITS Y

Explanation:

Answer:

The answer would be B

Explanation:

The atmosphere of Venus traps in lots of what from the Sun, it is the hottest planet in our solar system because of this. CO2 is a greenhouse gas and traps in heat. So B would be your answer.

Final answer:

The correct answers are 'carbon dioxide (CO₂)' and 'runaway'. The heating of Venus increased the amount of CO₂, leading to a runaway greenhouse effect where surface temperatures rose uncontrollably as water vapor and CO₂ continued to amplify the warming.

Explanation:

The heating of Venus led to a further release of carbon dioxide (CO₂) from its surface. With nowhere for the greenhouse gas to go, Venus ended up with a runaway greenhouse effect. This process implies a significant increase in atmospheric CO₂ and water vapor (H₂O), which amplify the greenhouse effect. As the surface temperatures increased, more CO₂ and H₂O were released. This continuous cycle led to such high temperatures that Venus' oceans evaporated, and without water to dissolve the excess CO₂, the planet was left with mostly CO₂ in its atmosphere. The loss of water is irreversible, and Venus reached a new, much hotter equilibrium near its surface, which is a clear characteristic of a runaway greenhouse effect.

Answer:

See the explanation below

Explanation:

In the attached image we can see the free body diagram and forces acting on the book.

Force F, which acts to the right, the friction force which acts in the opposite direction to the movement, i.e. to the left.

The force exerted by the weight of the book that is equal to the product of the mass of the book by the gravity of the book. The normal force that is equal in magnitude to the weight of the book but in the opposite direction.

The forces acting on the book on the horizontal are the moving force (force that causes pull or push on the body)

The frictional force Ff is also acting on the body. This is the force acting opposite the moving force "F"

Along the vertical component, the forces acting along with the component are the weight of the object and the reaction force acting opposite the weight.

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Answer:

A

Explanation:

kepler's research was based on the data and observations of tycho brahe.

Hay

Explanation:

Harvesting and storing forage at the proper moisture concentration is important for producing a high-quality product. Ideally, hay forage ought to have a moisture concentration between 15% to 18% during baling. Hay baled at higher moisture levels is liable to heat damage, dry-matter loss, mold spoilage, and hay fires. Protein and total digestible nutrient losses are increased for hay baled at lower moisture levels. Baling at the proper moisture level is critical to making quality hay, especially for larger bales (round and square) since moisture and heat dissipate gradually in contrast to smaller bales.

Hay is the type of forage that is cut and dried to contain low moisture, which is produced to store and preserve the feed for animals.

The type of forage that is cut and dried until it contains low moisture is known as hay. Haymaking is the process that transforms fresh, green forage into hay, which involves cutting, drying and then storing the plants. The purpose of creating hay is to preserve and store the forage at a nutritional state that is suitable for feeding animals, especially during times when fresh forage is not available, such as winter. The drying process is crucial as it prevents the growth of mold and spoilage organisms, ensuring the hay remains safe and suitable to feed livestock.

Explanation:

The force applied by the man is 15 N to push the wheel through 10 m

Thus the work done by him = Force x distance

= 15 x 10 = 150 J

The time taken can be found by the relation = t = [tex]\frac{Work}{Power}[/tex]

Therefore t = [tex]\frac{150}{30}[/tex] = 5 s

Answer:5 seconds

Explanation:

Power=30w

Force=15N

Distance=10m

Time=?

Power=(force x distance)/time

30=(15 x 10)/time

time=(15 x 10)/30

time=150/30

time=5

time=5 seconds

The electrical energy supplied by the mobile phone charger when it runs steadily for ten minutes is 3000 Joules.

The electrical energy supplied by a device is given by the formula: Energy = Power x Time. In this case, the power is given as 5W, and time is 10 minutes, which needs to be converted to seconds (as the standard unit of time in physics is second) by multiplying it by 60. Therefore, the electrical energy supplied by the charger running steadily for ten minutes can be calculated using this formula as: Energy = 5W x (10 x 60s) = 3000 Joules

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Answer: 1.6m/s

Explanation:

M1 = 13500kg

U1 = 4.5m/s

M2 = 25000kg

U2 = 0m/s (since the body is at rest)

V = ? (Common velocity or velocity after impact)

M1U1 + M2U2 = (M1 + M2)V

But U2 = 0

M1U1 = (M1 + M2)V

13500 * 4.5 = (13500 + 25000)v

60750 = 38500v

V = 60750 / 38500 = 1.5779 = 1.6m/s

Final answer:

The speed of the two coupled cars after the collision is calculated using the principle of conservation of momentum, resulting in a final speed of 1.578 m/s.

Explanation:

To find the speed of the two cars after they have collided and coupled together, we can use the principle of conservation of momentum. The total momentum before the collision must be equal to the total momentum after the collision, assuming no external forces are acting on the system.

Let's denote the mass of the first car as m1 = 13,500 kg and its initial speed as v1 = 4.5 m/s. The mass of the second car is m2 = 25,000 kg, and its initial speed v2 = 0 m/s since it is initially at rest. We are looking for the final velocity of the two cars combined (v').

The formula for conservation of momentum is given by:

m1*v1 + m2*v2 = (m1 + m2)*v'

Substituting the given values:

13,500 kg * 4.5 m/s + 25,000 kg * 0 m/s = (13,500 kg + 25,000 kg) * v'

This simplifies to:

60,750 = 38,500 * v'

Therefore, v' = 60,750 / 38,500 = 1.578 m/s

The speed of the two cars after the collision and coupling together is 1.578 m/s.

Answer:

It is B

it is called a jumper cable because it jumps the power from one car to the other

The name for the thick, insulated cables used for jump starting a car is "jumper cables".

Jumper cables, which are sometimes referred to as booster cables and jump leads, are both a pair of insulated wires with just enough capacity and clamp at each end to communicate the disabled vehicle or equipment with such an auxiliary source, including another vehicle or piece of equipment with about the same system voltage or even to a different battery.

A non-conductive material that is resistive to an electric current makes up an insulated wire and cable. It encloses as well as safeguards the cable and perhaps wire inside.

The name for the thick, insulated cables used for jump starting a car is "jumper cables".

Therefore, the correct answer will be option (B).

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Answer:

ExplanProject Torque was the free North American version of Level-R. It is a multiplayer online racing game (MMORG) with partially chargeable content, or micro-transactions. It features gameplay elements such as tuning and customization. The game is titled as Level R in Europe with a slightly different game interface and menus. Europe, US, Russia, Indonesia, Thailand, China, and Japan versions, are developed by Invictus Games and are subject to Invictus copyrightation:

Final answer:

Torque is the rotational equivalent of a force and is a measure of the effectiveness of a force in changing or accelerating rotation. It can be calculated using the equation t = rF sin θ. Torque is perpendicular to the plane formed by r and F and has the same direction as the angular momentum it produces.

Explanation:

Torque is the rotational equivalent of a force. It is a measure of the effectiveness of a force in changing or accelerating a rotation. Torque can be calculated using the equation t = rF sin θ, where t is the magnitude of torque, r is the distance from the axis of rotation to the point where the force is applied, F is the magnitude of the force, and θ is the angle between the force vector and the lever arm. Torque is perpendicular to the plane formed by r and F and has the same direction as the angular momentum it produces.

Answer:

Here, 5% of energy wasted as a heat lost or work done against frictional forces.

Explanation:

No engine has yet made that can convert its all input energy into mechanical energy. Some of the input energy goes in vain in the form of heat and friction.