According to the law of multiple proportions, if 12 g of carbon combine with 16 g of oxygen to form co, the number of grams of carbon that combine with 16 g of oxygen in the formation of co2 is ________.

Answer:

0.119 s is the correct answer to this question.

Explanation:

As mentioned in the question

U=3.89\ m/s

a=-1.44\ m/s^2

S=4.8\ m

Consider the final speed of the softball covering the distance of 4.8m is v

Now using the equation

\(v^2=U^2+2aS\)

Putting the value of U, A, S in the previous equation we get

\(V^2=3.89^2-2\times 1.44\times 4.8\\V=3.7\ m/s\\\)

Now again using the equation

v=U+at

where U=intial velocity, t= time

Substituting the value of v, U, a

\(3.7=3.89-1.44\times t\\t=0.119\ s\\\)

Hence the slide time is 0.119 s

If Jupiter was about the size of a basketball, Venus would be about the size of a baseball.

If Jupiter was about the size of a basketball (approximately 9.4 inches or 24 centimeters in diameter), then a planet about the size of a baseball (approximately 2.9 inches or 7.4 centimeters in diameter) would be roughly 1/3 the diameter of Jupiter.

There are four planets in our solar system that are smaller than Jupiter and roughly 1/3 its diameter: Saturn, Uranus, Neptune, and Venus. Of these, Venus is the closest in size to a baseball, with a diameter of approximately 7,520 miles (12,104 kilometers), making it slightly larger than a baseball but still in the same size range.

So, if Jupiter was the size of a basketball, Venus would be the planet in our solar system that is closest in size to a baseball. Saturn, Uranus, and Neptune would be slightly larger, but still much smaller than Jupiter.

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As the diameter of the wire approaches to zero, the resisitance approaches  infinity.

Electrical resistance is the physical capacity of any body to oppose the flow of electric current even when there is an applied potential difference, capacity calculated by Ohm's First Law, and, according to the International System of Units (IS), is measured in ohms.

With that being said, and knonwing that:

R = Resistance; p = Resistivity; L = Length; d = Diameter

It is possible to calculate the resistance of the wire by:

\(R = p\frac{L}{A}\)

Where A is calculated by:

\(A = \frac{\pi d^{2} }{4}\)

Changing in the first formula:

\(R = p\frac{L}{\pi d^{2} } \\\\R = p\frac{4L}{\pi d^{2} }\)

Knowing that when the diameter tends to zero resistance tends to infinity, it is possible to say that resistance of the wire will tend to infinity when the diameter approaches zero.

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Answer:

The resistance approaches infinity.

Explanation:

100% Correct

Answer:

4.2 into the atmosphere

Explanation:

Carbon movement into atmosphere :

Carbon movement in the sinks :

Net Carbon Movement :

The electric field strength is 62.5 N/C.

Electric field strength (E) is a physical quantity that describes the intensity of the electric field at a particular point in space.

The electric field strength (E) can be calculated using the formula:

E = F/q

Where

Substituting the given values, we get:

E = 5.0 N/0.08 C

E = 62.5 N/C

Therefore, the electric field strength is 62.5 N/C.

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Answer:

A

Explanation:

moving a magnet into a coil of wire in a closed circuit

Craig, move a magnet into a coil of wire in a closed circuit for the discovery of electromagnetism. Option A is correct.

The physical interplay of electric charges, magnetic moments, and the electromagnetic field is known as electromagnetism.

The electromagnetic field can be static, moving slowly, or forming waves.

Craig, move a magnet into a coil of wire in a closed circuit for the discovery of electromagnetism.

Hence, option A is correct.

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Answer:

imma try nd help cuz i havent seen anybody answer so

1.sara

2.same for both

3.tom

Explanation:

(a) The ship's kinetic energy is calculated using the formula KE = (1/2)mv². The kinetic energy of the ship at that instant is approximately 5.53 × 10⁹ J.

(b) To determine the work required to stop the ship, we need to consider the change in kinetic energy. The work required to stop the ship is approximately -5.53 × 10⁹ J.

(c) Dividing the work required by the displacement, we can find the magnitude of the force required to stop the ship. The magnitude of the constant force required to stop the ship over a displacement of 3.30 km is approximately 1.68 × 10⁵ N.

(a) The kinetic energy (KE) of the cruise ship is given by the equation:

KE = (1/2)mv²

Plugging in the given values, we have:

KE = (1/2)(6.70 × 10⁷ kg)(13.0 m/s)²

Calculating the kinetic energy, we find:

KE ≈ 5.53 × 10⁹ J

Therefore, the ship's kinetic energy at that instant is approximately 5.53 × 10⁹ J.

(b) To determine the work required to stop the ship, we consider the change in kinetic energy. Since the ship needs to be brought to rest, the work done on the ship is equal to the negative of its initial kinetic energy. Thus, the work required to stop the ship is given by:

Work = -KE

Substituting the previously calculated value, we have:

Work = -(5.53 × 10⁹ J)

Therefore, the work required to stop the ship is approximately -5.53 × 10⁹ J. The negative sign indicates that work is being done on the ship to oppose its motion.

(c) The magnitude of the constant force required to stop the ship over a displacement can be found using the work-energy theorem, which states that the work done on an object is equal to the change in its kinetic energy.

The work done on the ship is given by:

Work = Force × Displacement

Rearranging the equation, we have:

Force = Work / Displacement

Substituting the previously calculated work and the given displacement, we get:

Force = (-5.53 × 10⁹ J) / (3.30 × 10³ m)

Calculating the magnitude of the force, we find:

Force ≈ 1.68 × 10⁵ N

Hence, the magnitude of the constant force required to stop the ship over a displacement of 3.30 km is approximately 1.68 × 10⁵ N.

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Answer:

Explanation:

In projectile,

Maximum height = \(\frac{u^{2}sin^{2} \theta }{2g}\) and range = \(\frac{u^{2}sin2\theta }{g}\)

u = velocity of the body

\(\theta\) = angle of launch

g = acceleration due to gravity

If the range equals the maximum height in an ideal projectile launch on a horizontal plane, this means;

\(\frac{u^{2}sin^{2} \theta }{2g} = \frac{u^{2}sin2\theta }{g}\)

since \(sin2\theta = 2sin\theta cos\theta\)

\(\frac{u^{2}sin^{2} \theta }{2g} = \frac{u^{2}2sin\theta cos\theta }{g}\\\frac{sin\theta}{2} =2cos\theta \\sin\theta = 4cos\theta\\\frac{sin\theta}{cos\theta} = 4\\tan\theta = 4\\\theta = tan^{-1} \\4\theta = 75.9^{0}\)

The angle at which the range equals the maximum height in an ideal projectile launch on a horizontal plane is approximately 76°

The time period between the lightning and thunder is approximately 12.84 seconds.

Speed = Distance x Time

The time period between the lightning and thunder can be calculated using the formula:

time = distance / speed

First, we need to convert the distance from kilometers to meters, as the speed of sound is given in meters per second:

distance = 3.50 km = 3,500 meters

Next, we need to adjust the speed of sound for the temperature of the air. The speed of sound in air increases with temperature, so we can use the following equation to calculate the speed of sound at 30.0 °C:

speed = 331.0 m/s * sqrt(1 + (30.0 °C / 273.15 K))

where 273.15 K is the standard temperature of 0.00 °C in Kelvin.

Plugging in the values, we get:

speed = 331.0 m/s * sqrt(1 + (30.0 °C / 273.15 K))

= 331.0 m/s * sqrt(1 + 0.109)

= 351.9 m/s (rounded to one decimal place)

Now we can calculate the time period between the lightning and thunder:

time = distance / speed

= 3,500 meters / 351.9 m/s

= 9.954 seconds (rounded to three decimal places)

However, this calculation only gives us the time it takes for the sound to travel from the lightning to our location. We also need to account for the time it took for us to hear the thunder after it was produced. The speed of sound is approximately 343 m/s at normal atmospheric pressure and temperature, so we can use this value to calculate the additional time:

time = distance / speed + time delay

= 3,500 meters / 343 m/s + 0.00 seconds

= 10.204 seconds (rounded to three decimal places)

Therefore, the time period between the lightning and thunder is approximately 10.204 seconds, or about 12.84 seconds (rounded to two decimal places) if we include the delay due to the speed of sound.

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Answer:

because plants or living things cant reflect with a red light

Explanation:

Answer:

Explanation:

Red has the longest wavelength so it has the lowest energy of any color.

A liquids resistance to flow is called Viscosity

A phase change from the liquid phase to the vapour phase is called vaporisation (or vaporisation) of an element or molecule. Both evaporation and boiling result in vaporisation. Boiling is a bulk phenomenon, whereas evaporation is a surface phenomenon.

vaporisation is the process by which a material is transformed from its liquid or solid state into its gaseous (vapour) state. Boiling is the term for the vaporisation process when circumstances permit the creation of vapour bubbles within a liquid.

Evaporation is a typical process that takes place when a liquid transforms into a gas while raising the temperature or pressure. Boiling is an unnatural process in which the liquid is continuously heated to a point where it vaporises.

The transformation of a liquid into a gas is known as vaporisation.

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Answer: 0.6

Explanation: I don't know the explanation and i don't know how to find the answer but i promise the answer is 0.6

The coefficient of kinetic friction between the object and the surface is 0.6

The formula for calculating the force of friction is expressed as:

\(F = \mu R\)

F is the frictional force

\(\mu\) is the coefficient of friction

R is the normal reaction

For the object on the surface, its weight is equal to the normal reaction and the frictional force is equal to the moving force;

W = R = 20N

F = Fm = 12N

From the equation above:

\(\mu =\frac{F}{R} \\\mu = \frac{12}{20}\\\mu = 0.6\)

Hence the coefficient of kinetic friction between the object and the surface is 0.6

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Answer:

1. True.

2. False.

3. True.

Explanation:

A. True: An object has acceleration if its velocity is changing. In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

B. False: Force is measured in joules. Force is a product of the mass of an object and its rate of acceleration. Thus, force is actually measured in Newton.

C. Gravity is a force. Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.

Answer:

Velocity

Explanation:

You would be describing the velocity of the car.

Velocity in physics is defined as Vector quantity that describes the displacement of an object with respect to the time it takes to attain it. Displacement is the addition of direction to the speed of an object. The displacement is noted in the question, "traveling eastward". While it is stated that the car travels at 44.704 m/s. Ordinarily, it would have been tagged speed, if not for the direction added to it which makes it velocity.

I hope you understand.

Answer:

Replication is vital to science. It helps make science a self-correcting system. Any time a result is surprising, research­ers will try to replicate it, to see if the phenom­enon is dependable or just a fluke

Explanation:

Answer:

300 N

Explanation:

We can use the principle of Pascal's law to solve this problem. According to this law, pressure applied to a confined fluid is transmitted undiminished to every part of the fluid and to the walls of the container.

In this case, the fluid is confined in two cylinders with pistons of different sizes. The force applied on the larger piston is transmitted through the fluid and acts on the smaller piston, resulting in a larger force on the smaller piston.

We know that the force applied on the larger piston is 1500 N and the area of the larger piston is 25 m^2. Therefore, the pressure applied on the fluid is:

P = F/A = 1500 N / 25 m^2 = 60 Pa

This pressure is transmitted undiminished to every part of the fluid and acts on the smaller piston, which has an area of 5 m^2. Therefore, the force acting on the smaller piston is:

F = P × A = 60 Pa × 5 m^2 = 300 N

Therefore, a force of 300 N is needed to lift the crate.

Answer:

80 m or 81.3 m

Explanation:

Initially it had no velocity(as at rest). Let the height be h

Using conservation of energy:

Initial KE + PE = final KE + PE

(1/2) m(0)² + mgh = (1/2) m(40)² + mg(0)

mgh = (1/2) m (1600)

2gh = 16000

h = 1600/(2*10) {for g = 10}

h = 80

80 For g = 9.8, h = 81.3 m

Using Newton's eqⁿ of motion:

v² = u² + 2aS

40² = 0² + 2(g)S

1600/2g = S

For g = 10, S = 80 m

g = 9.8, S = 81.33 m

The velocity with which the electrons drift in the silver wire is approximately 1.58 x 10^-4 m/s.

To find the velocity with which electrons drift in a silver wire, we can use the formula:

I = nAvq

where:

I is the current (in amperes),

n is the number of free electrons per unit volume (in m^3),

A is the cross-sectional area of the wire (in m^2),

v is the drift velocity of electrons (in m/s), and

q is the charge of an electron (approximately 1.6 x 10^-19 C).

Given:

I = 5.0 A (current)

n = 5.8 x 10^28 m^-3 (number of free electrons per m^3)

A = πr^2 = π(0.002 m)^2 (cross-sectional area)

q = 1.6 x 10^-19 C (charge of an electron)

First, we calculate the cross-sectional area of the wire:

A = π(0.002 m)^2 = 1.2566 x 10^-5 m^2

Next, we rearrange the formula and solve for v:

v = I / (nAq)

v = 5.0 A / (5.8 x 10^28 m^-3 * 1.2566 x 10^-5 m^2 * 1.6 x 10^-19 C)

v ≈ 1.58 x 10^-4 m/s

Therefore, the velocity with which the electrons drift in the silver wire is approximately 1.58 x 10^-4 m/s.

The drift velocity represents the average velocity at which the electrons move in the wire under the influence of an electric field. It is relatively small due to frequent collisions with lattice ions and other electrons within the wire.

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Answer:

You can download^{} the answer here

bit.^{} ly/3gVQKw3

Answer:

there is no momentum

Explanation:

if an object is at rest there is no momentum to build, no speed, no acceleration it does not move unless force is acted upon it.

Answer: The area of brick in contact with the floor is 1539 \(cm^{3}\).

Explanation:

Given: Length = 19 cm

Width = 9 cm

Height = 9 cm

As the brick is rectangular in shape. Hence, its area will be calculated as follows.

\(Area = length \times width \times height\)

Substitute the values into above formula as follows.

\(Area = length \times width \times height\\= 19 cm \times 9 cm \times 9 cm\\= 1539 cm^{3}\)

Thus, we can conclude that area of brick in contact with the floor is 1539 \(cm^{3}\).

Answer:

true

Explanation:

they can cause skin damage

Answer:

Explanation:

Given:

D = 240 m

V = 1.2 m/s

___________

t - ?

t = D / V

t = 240 / 1.2 =  200 c     or  t = 200 / 60 ≈ 3,33 min

While negative point charges always move in the direction of the opposing electric field, positive point charges always move in the other direction. An electric field is a vector quantity. They cannot be added directly, but they can be vectorially inserted.

A physical field called an electric field surrounds electrically charged particles and attracts or repels all other charged particles nearby. It can also refer to the physical field surrounding a system of charged particles.

While negative point charges always move in the direction of the opposing electric field, positive point charges always move in the other direction. An electric field is a vector quantity.

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