a slide-loving pig slides down a certain 353 slide in twice the time it would take to slide down a frictionless 353 slide.what is the coefficient of kinetic friction between the pig and the slide?

When you attract every object in the universe with a force that is proportional to the mass of the objects and to the distance between them, we are obeying Newton's law of universal gravitation.

Newton's law of universal gravitation states that the force of attraction between two masses in the universe is directly proportional to the product of the masses and inversely proportional to the the square of the distance between them.

The mathematical interpretation of the above law is

Removing the proportionality sign,

Where:

From the above, When you attract every object in the universe with a force that is proportional to the mass of the objects and to the distance between them, we are obeying Newton's law of universal gravitation.

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A straightforward pendulum with a period of one second will be 0.25 meters, or 25 cm, long.

Please feel free to explore how the pendulum would function on different planets, but we'll use the Earthly value of 9.80665 m/s2 for our calculations. Use the formula above to get the oscillation period: T = 2π√(L/g) = 2π * √(2/9.80665) = 2.837 s . As the period's reciprocal, determine the frequency: f = 1/T = 0.352 Hz .

The length of the string and gravitational acceleration are two elements that can alter a pendulum's period.

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Answer:

Approximately \(2.69\; {\rm A}\).

Explanation:

Ensure that all values are measured in standard units. Charge should be measured in coulombs, while time should be measured in seconds:

\(\begin{aligned}t &= 3.0\; {\rm hr} \times \frac{3600\; {\rm s}}{1\; {\rm hr}} = 10800\; {\rm s}\end{aligned}\).

Electric current \(I\) is the rate of flow of electric charge.

In order to find the electric current, divide electric charge \(q\) by the time \(t\) required to transfer these charge. If charge \(q\!\) is measured in coulombs and time \(t\!\) is measured in seconds, the unit of current \(I\)would be amperes:

\(\begin{aligned}I & = \frac{q}{t} \\ &= \frac{29000\; {\rm C}}{10800\; {\rm s}} \approx 2.69\; {\rm A}\end{aligned}\).

The Pythagorean theorem is a mathematical formula that describes the relationship between the sides of a right triangle. It is used to find the length of a missing side or to check if a triangle is a right triangle.

The theorem states that the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In trigonometry, special right triangles are those that have angles that are multiples of 30°, 45°, and 60°. These triangles have ratios of their sides that are always the same, regardless of their size. The three special right triangles are the \(30-60-90\) triangle, the \(45-45-90\) triangle, and the \(3-4-5\) triangle. The trigonometric functions are sine, cosine, and tangent. They are used to find the ratio of the sides of a right triangle.

Sine is the ratio of the opposite side to the hypotenuse, cosine is the ratio of the adjacent side to the hypotenuse, and tangent is the ratio of the opposite side to the adjacent side.

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Answer:

Explanation:

The picture is cut off so the wrecking ball and its path are not shown. It would be better if the whole picture is available.

Based on the written info, at the bottom of the path, the wrecking ball is moving at 10m/s.

The centripetal acceleration = velocity^2 / radius

= 10^2 / 25

= 100 / 25

= 4m/s^2

The centripetal force = mass * centripetal acceleration

= 600*4

= 2400N

As the ball is moving horizontally at the bottom, net vertical force is zero.

So Tension force in cable = Wrecking ball weight + Centripetal force

= 600*g + 2400

= 6000 + 2400; assuming g is 10m/s^2

= 8400N

 Here  the answer = 0.0080 .

Based on stokes law,

 v = g * D^2 *(d p - d m) / (18 V)

v = terminal velocity

D =  diameter of particle

V  =  Viscosity

dp =  density of particle

dm =  density of medium.

Here density of ball = 1.42 gm/cc

By substituting,

v = 9.81 x 9.52 x 10^-3 ^2 (1420 - 1300) / 18 x 1.0

=5.92x10^-4

 v(t) =0 .99 x Vtrm

  =0 .99 x  0.0059

  = 0.00059 m/s

  v(t)/Vterm =1-e^(-t/r)

  0.99 = 1 - e ^ (-t / 9.52 x 10^-3)

  e ^ (-t / 9.52 x 10^-3) = 0.01

Taking log

 -t / 9.52 x 10^-3 = -4.6

  t = 0.0438 s

Then smaller ball

v = 9.81 x 2.38 x 10^-3 ^2 (1420 - 1300) / 18 x 1.0

= 0.000037 m/s

v(t) / Vterm = 1-e^(-t/r)

0.99 = 1 - e ^ (-t / 2.38 x 10^-3)

e ^ (-t / 2.38 x 10^-3) = 0.01

Taking log

-t / 2.38 x 10^-3 = -4.6

  t = 0.0109 s

Here Reynolds number is,

R= rho vd / mu

= 1420 x  0.00059 x 9.52 x 10^-3 x / 1.0

= 0.0080

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Ribosomes, endoplasmic reticulum, vesicles, and the Golgi apparatus are the organelles present in the eukaryotic cell. They are involved in various roles and functions involving proteins.

Ribosomes are the organelles involved in the transcription and translation process to synthesize proteins and transport them from ER to the vesicles. The endoplasmic reticulum (ER) is a membraneous structure that along with ribosomes is involved in lipid and protein synthesis.

The proteins synthesized from ER are transported to the Golgi body through the vesicles. They even eliminate the waste from the cell. The Golgi apparatus receives proteins from ER and then packs, modifies, and transports them to the target location.

Therefore, the ER, ribosomes, Golgi, and vesicles are involved in protein synthesis and transportation.

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Answer:

option A because in sport pain makes a player strongest.......

Answer: Choice C: You should understand the risks of each sport and listen to your body.

Explanation: The statement that BEST describes the process of playing sports is C. You should understand the risks of each sport and listen to your body. It’s important to be aware of the potential risks associated with each sport and to pay attention to your body’s signals to avoid injury.

True, stars of lower mass have deeper convection zones outside their cores than stars of higher mass. This is because lower-mass stars have lower temperatures and pressure in their cores, leading to a more extensive outer convection zone.

Convection is the process by which heat is transported in a fluid (or gas) by the motion of the fluid itself. In stars, convection occurs in the outer layers of the star, where the energy generated by nuclear fusion in the core is transported to the surface.

The depth of the convection zone in a star depends on the mass and temperature of the star. Stars of lower mass have lower temperatures and hence, a deeper convection zone than stars of higher mass. This is because convection is more efficient at transporting energy in cooler fluids. In addition, the structure of the convection zone can also be influenced by other factors, such as the metallicity of the star and its rotation rate.

Therefore, the statement "stars of lower mass have deeper convection zones outside their cores than stars of higher mass" is generally true, although there can be some variations depending on other factors.

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Answer in attachment

Answer:

5.2 s

Explanation:

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

Velocity = 7.5 m/s

Displacement = 39 m up

Time =?

The time taken for the cable cab to get to 39 m can be obtained as follow:

Velocity = Displacement / Time

7.5 = 39 / time

Cross multiply

7.5 × time = 39

Divide both side by 7.5

Time = 39 / 7.5

Time = 5.2 s

Thus, the time taken for the cable cab to get to 39 m up is 5.2 s

To calculate the resulting kinetic energy of an electron subjected to an electric field, we need to know the charge of the electron and assume it is accelerated through the electric field.

The charge of an electron is approximately -1.6 x 10^-19 coulombs (C). Given that the electron is at rest initially, its initial kinetic energy is zero.

The electric field is given as 12 kV/m, which can be converted to volts per meter (V/m) by multiplying by 1000. Therefore, the electric field is 12,000 V/m.

The work done on the electron by the electric field is equal to the change in its kinetic energy. The work done can be calculated using the formula:

Work = force * distance

The force experienced by the electron in an electric field is given by Coulomb's law:

Force = charge * electric field

Substituting the values:

Force = (-1.6 x 10^-19 C) * (12,000 V/m)

Now, we can calculate the work done:

Work = (-1.6 x 10^-19 C) * (12,000 V/m) * (1.5 m)

To convert the work done to kinetic energy, we use the fact that work done is equal to the change in kinetic energy:

Work = Change in kinetic energy

Therefore, the resulting kinetic energy of the electron is equal to the calculated work done.

Now, let's perform the calculations:

Work = (-1.6 x 10^-19 C) * (12,000 V/m) * (1.5 m)

= -28.8 x 10^-19 J

Note: The negative sign indicates that the work is done on the electron, which increases its kinetic energy.

To express the kinetic energy in femtojoules (fJ), we need to convert from joules (J) to femtojoules (fJ):

1 J = 10^15 fJ

Therefore, the resulting kinetic energy of the electron is:

Kinetic energy = -28.8 x 10^-19 J = -28.8 x 10^-4 fJ

Please note that the resulting kinetic energy is negative, indicating that work was done on the electron to accelerate it.

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The box will be in rest due to net force applied on it is zero.

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

Given that Bert and Ernie are pushing on opposite sides of the box with force of same magnitude, let it be F.

So, net force acting om the force = F-F = 0.

As that net force acting on the box is zero, the box will be in rest.

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Answer:

A) d_o = 20.7 cm

B) h_i = 1.014 m

Explanation:

A) To solve this, we will use the lens equation formula;

1/f = 1/d_o + 1/d_i

Where;

f is focal Length = 20 cm = 0.2

d_o is object distance

d_i is image distance = 6m

1/0.2 = 1/d_o + 1/6

1/d_o = 1/0.2 - 1/6

1/d_o = 4.8333

d_o = 1/4.8333

d_o = 0.207 m

d_o = 20.7 cm

B) to solve this, we will use the magnification equation;

M = h_i/h_o = d_i/d_o

Where;

h_o = 3.5 cm = 0.035 m

d_i = 6 m

d_o = 20.7 cm = 0.207 m

Thus;

h_i = (6/0.207) × 0.035

h_i = 1.014 m

The correct terms that fills the box are;

(i) The incident ray

(ii) The normal

(iii) The reflected ray

(iv) The angle of incident

(v) The reflected angle

The terms of the ray diagram is illustrated as follows;

(i) This arrow indicates the incident ray, which is known as the incoming ray.

(ii) This arrow indicates the normal, a perpendicular line to the plane of incidence.

(iii) This arrow indicates the reflected ray; the out going arrow.

(iv) This the angle of incident or incident angle.

(v) This is the reflected angle or angle of reflection.

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Given :

A hot piece of brass (c = 380 J/kg˚C) is placed in water (c = 4180 J/kg˚C) to cool.

To Find :

The final temperature of the “mixture” will be closer to the initial temperature of which substance.

Solution :

We know, change in temperature is inversely proportional to specific heat of the material.

In the given case specific heat of water is much greater than specific heat of brass.

So, change in temperature will be much in brass as compared to water.

Therefore, final temperature of mixture will be closer to the initial temperature of water.

Hence, this is the required solution.

hydroxide ion. An acid is a chemical that, when dissolved in water, raises H+.Compared to OH-, the concentration of H+ in basic solutions is low.

A material is said to be an acid if it dissolves in water to form H+ ions, whereas a substance is said to be a base if it dissolves in water to form OH ions.

Ionic chemicals known as acids create positive hydrogen ions (H+) when they are dissolved in water.Acids have a sour flavor, conduct electricity, and combine with metals to form hydrogen gas when dissolved in water.

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Both audio and video as well as data may be communicated through wired or wireless lines. These all convey information along a transmission medium.

Information is transmitted over the air utilizing electromagnetic waves such as satellite, RF (Radio Frequency), and infrared (IR). For instance, Bluetooth, Wi-Fi, GPS, satellite television, mobile computer components, and wireless phones with 3G and 4G networks.

Information can be sent wirelessly among two or more sites without a physical link. Wireless communication benefits from the lack of a "physical infrastructure" due to this. This frequently entails shrinking time or space.

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Answer:

read section b :)

Explanation:

To measure the speed of the wave on the string, the wavelength, and frequency are required. So by calculating the wavelength, the speed can be calculated.

The distance between two adjacent crests can be used to calculate a transverse wave's wavelength. The distance between two adjacent compressions can be used to calculate the wavelength of a longitudinal wave.

The wave speed can be determined using this equation if the wavelength and frequency are known. The quantity of waves that move in a wave's frequency is measured in waves per second.

Speed = Wavelength x Frequency).

Therefore, the wavelength and frequency of the wave on the string must be determined in order to calculate its speed. Consequently, the speed can be estimated by determining the wavelength.

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Answer:

Capricorn what is yours

Answer:

leo

Explanation:

Answer:

Calvatia craniiformis

Explanation:

In writing scientific names, the genus nomenclature precedes the specie nomenclature and its first letter is usually written in capital. This is followed by the specie nomenclature that is denoted in small letters. Since these names are special or unique names, they are usually italicized to pinpoint that.

The scientific name Calvatia craniiformis is used for the fungus, brain puffball which is usually purple in color. It belongs to the family, Agaricaceae.

If you walk at 1 km/h down the aisle towards the front of a train that moves at 60 km/h, your speed relative to the ground would be 61 km/h.

This is because we add the velocity of the person to the velocity of the train to determine their combined velocity relative to the ground. If the person were to walk in the opposite direction of the train, their speed relative to the ground would be 59 km/h since we would subtract their velocity from that of the train. The same concept applies to any situation where two objects are moving relative to each other.

For example, let's say that two cars are driving in the same direction on a highway. Car A is driving at 70 km/h and Car B is driving at 90 km/h.

The relative velocity of Car A with respect to Car B would be 20 km/h (90 km/h - 70 km/h) while the relative velocity of Car B with respect to Car A would be -20 km/h (70 km/h - 90 km/h).

So therefore if you walk at 1 km/h down the aisle towards the front of a train that moves at 60 km/h, your speed relative to the ground would be 61 km/h.

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Answer:

12.8 metres

Explanation:

distance = speed x time

distance = 4 x 3.2

distance = 12.8

It is possible for a state to be internally democratic and have an empire at the same time, if the empire is based on a federation or confederation of democratic states that voluntarily join together for mutual benefit and protection, rather than through the use of force.

An empire is a political entity that extends its rule over other territories and peoples, often through the use of military force. Empires are typically characterized by an unequal distribution of power, with the imperial center exerting control over its subjects in the periphery. In contrast, a democratic state is one in which political power is derived from the consent of the governed and is exercised through free and fair elections, the rule of law, and the protection of individual rights and liberties.

While these two systems may seem incompatible, it is possible for a state to be both democratic internally and have an empire if certain conditions are met. If the empire is based on a federation or confederation of democratic states that voluntarily join together for mutual benefit and protection, rather than through the use of force. In this case, each member state retains its own democratic institutions and internal governance while participating in the larger imperial structure.

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The property used to describe half the distance between the crest and the trough of a wave is called the amplitude.

It represents the maximum displacement of a point on the wave from its rest position. In simpler terms, the amplitude measures the height or intensity of the wave. It determines the energy carried by the wave, with larger amplitudes indicating higher energy levels. Amplitude is typically represented by the symbol "A" and is measured in units such as meters or volts, depending on the type of wave being described. The property used to describe half the distance between the crest and the trough of a wave is called the amplitude.

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Answer:

Explanation:

According to Newton's law of universal gravitation, the correct statements are:

As we move to higher altitudes, the force of gravity on us decreases.

Explanation: The force of gravity weakens as we move farther away from the center of the Earth, such as at higher altitudes.

As we gain mass, the force of gravity on us increases.

Explanation: The force of gravity between two objects is directly proportional to their masses. Therefore, as we gain mass, the force of gravity acting on us increases.

As we move faster, the force of gravity on us increases.

Explanation: Newton's law of universal gravitation does not state that the force of gravity increases as we move faster. The force of gravity is solely determined by the masses of the objects involved, not their velocities.

So, the correct statements are:

It is difficult to push a beach ball underwater is that a force of up to 150% of its weight is required to submerge it.

The reason why it is difficult to push a beach ball underwater is that a force of up to 150% of its weight is required to submerge it. That's why a beach ball bounces back to the surface when you try to push it underwater.

What is buoyancy?

Buoyancy is the ability of an object to float in a fluid, which can be a gas or a liquid. The principle of buoyancy was discovered by Archimedes, a Greek mathematician, in the third century BC. He discovered that an object that is immersed in a fluid experiences a buoyant force that is equal to the weight of the fluid displaced by the object.

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Answer:here you goo

Explanation:

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.

Answer:

Minerals are naturally occuring solid while rocks are naturally occuring substances consist of aggregate minerals clumped together with other materials