The maximum height of a mountain on earth is limited by the rock flowing under the enormous weight above it. Studies show that maximum height depends on young’s modulus (Y) of the rod, acceleration due to gravity (g) and the density of the rock (d). (a) Write an equation showing the dependence of maximum height (h) of mountain on Y, g and d. It is given that unit of Y is N m − 2 � � - 2 . (b) Take d = 3 × 10 3 k g m − 3 , Y = 1 × 10 10 N m − 2 and g = 10 m s − 2 � = 3 × 10 3 � � � - 3 , � = 1 × 10 10 � � - 2 and � = 10 � � - 2 and assume that maximum height of a mountain on the surface of earth is limited to 10 km [height of mount Everest is nearly 8 km]. Write the formula for h.Read more on Sarthaks.com - https://www.sarthaks.com/1576636/maximum-height-mountain-limited-flowing-enormous-weight-studies-maximum-height-depends

The engine does 1,358,400 Joules of work. The engine has a power of 340 kW. The car has 1,412,800 Joules of kinetic energy after 4 seconds.

A) The work done by the engine can be calculated using the work-energy theorem, which states that the work done on an object is equal to its change in kinetic energy. Therefore, the work done by the engine can be calculated as follows:

\(Work = (1/2) \times m \times v^2 - (1/2) \times m \times u^2\)

where m is the mass of the car, v is the final velocity, and u is the initial velocity. Substituting the given values, we get:

\(Work = (1/2) \times 450 \times (88)^2 - (1/2) \times 450 \times (0)^2 = 1,358,400 J\)

Therefore, the engine does 1,358,400 Joules of work.

B) The power of the engine is the rate at which it can do work. It can be calculated using the formula:

Power = Work / time

Substituting the values, we get:

Power = 1,358,400 J / 4 s = 339,600 watts or 340 kW (rounded to two significant figures)

Therefore, the engine has a power of 340 kW.

C) The kinetic energy of the car after 4 seconds can be calculated using the formula:

Kinetic energy = \((1/2) \times m \times v^2\)

Substituting the given values, we get:

Kinetic energy =\((1/2) \times 450 \times (88)^2\) \((1/2) \times 450 \times (88)^2\)  = 1,412,800 J

Therefore, the car has 1,412,800 Joules of kinetic energy after 4 seconds.

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It doesn't rise and set. But it appears to rise and set because of the Earth's rotation on its axis. As the Earth rotates toward the east, it looks like the sun is moving west. As the Earth rotates, different locations on Earth pass through the sun's light.

It doesn't rise and set. But it appears to rise and set because of the Earth's rotation on its axis. ... As the Earth rotates toward the east, it looks like the sun is moving west. As the Earth rotates, different locations on Earth pass through the sun's light

Answer:

you hit a golf ball to the moon

Explanation:

Answer:

You hit the ball and it flies

Explanation:

You hit the ball and it flies

Answer:

In coastal areas, strong winds and powerful waves break off soft or grainy rocks from hardier rocks. Too much weathering occurs, it might break off parts of the cliff and be dangerous to humans, or animals.

Rain has acid in it which could eat up the cliff.

Explanation:

Answer:Elas são ondas tridimensionais e transversais que viajam na velocidade da luz, transportando exclusivamente energia. Ademais, apresentam-se na forma de ondas de rádio, micro-ondas, infravermelho, luz visível, ultravioleta, raios x e raios gama, em ordem crescente de frequência e energia.

Explanation:

Answer:

Fun fact

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Explanation: yes

1. The three types of crystal structures are cubic, hexagonal, and tetragonal, 2.  A needle may float on clean water due to surface tension, and 3. Two applications of surface tension are Insect locomotion and capillary action.

1. Three types of crystal structures with two examples each are:

Cubic: NaCl (rock salt), diamond

Hexagonal: graphite, quartz

Tetragonal: zircon, tin dioxide

2. A needle may float on clean water due to surface tension. However, when detergent is added to the water, the surface tension is reduced, and the needle sinks due to the increased weight of the needle.

3. Two applications of surface tension are:

Insect locomotion: Insects such as water striders are able to walk on water due to the high surface tension of water. The insects use their weight and hydrophobic legs to create small depressions in the water surface, which increases the surface tension and allows them to stay afloat.

Capillary action: Capillary action is the ability of a liquid to flow in narrow spaces against the force of gravity. This phenomenon is due to the surface tension of the liquid, which causes it to rise in narrow tubes or porous materials. Capillary action is used in many applications, such as in wicking materials for candles, in paper chromatography for separating mixtures, and in plants for transporting water and nutrients from the roots to the leaves.

Therefore, NaCl, diamond, graphite, quartz, zircon, and tin dioxide are a few examples of the three main types of crystal structures: cubic, hexagonal, and tetragonal. Applications where liquids must flow in constrained places against the pull of gravity, such insect locomotion and capillary action, depend on surface tension. Surface tension allows a needle to float on water, but when detergent is added, it lowers surface tension and makes the needle heavier, which makes it sink.

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Answer:

B.because gravitational potential energy can convert to kinetic energy

Explanation:

You can calculate the speed as it hits the ground because gravitational potential energy can convert to kinetic energy.

In this way, total energy can be conserved.

Answer: B

Explanation:

Answer of the all following horizontal force question as follows.

Horizontal force is a type of force that acts parallel to the ground, or in a horizontal direction. It is also known as a lateral force. This type of force is often encountered in everyday life and in physics.

a) The height of Aaron's kick can be calculated using the equation: h = (v^2sin2θ)/2g, where v is the initial velocity, θ is the angle of projection and g is the acceleration due to gravity. Plugging in the given values, we get h = (67^2sin(43))/ (2*9.8) = 36.3 m.

b) The time of travel can be found using the equation: t = (2v sinθ)/g. Plugging in the given values, we get t = (2*67sin(43))/9.8 = 7.72 s.

c) The distance of the kick can be found using the equation: d = (v^2sin2θ)/g. Plugging in the given values, we get d = (67^2sin(2*43))/9.8 = 130.3 m.

18-

a. Hailey kicked the ball to a height of 21.5 m.

b. The time of travel in the air was 2.5 s.

c. The ball hit the ground 91 m away from the goal. Since she was standing 100 m away, she will not score a goal.

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Therefore, the heat required to decrease the temperature of a 40 kg object by 30 K is 1,140,000 J.

The energy absorbed or released as a substance changes phases is known as latent heat. The amount of heat needed to raise a substance's temperature by one degree Celsius (or one Kelvin) in one gramme while maintaining a constant pressure is known as its specific heat.

The heat required to decrease the temperature of an object can be calculated using the formula:

Q = m * c * ΔT

where Q is the heat required, m is the mass of the object, c is the specific heat of the object, and ΔT is the change in temperature.

Given that the object has a mass of 40 kg and a specific heat of 950 J/kg*K, and the temperature needs to be decreased by 30 K, we can substitute these values in the formula to find the heat required:

Q = 40 kg * 950 J/kg*K * 30 K

Q = 1,140,000 J

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Answer:

the answer is 187

Explanation:

The electric force between the two charged objects, if they were 0.6 times more charged, would be 30.6 N.

According to Coulomb's Law, the electric force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. The equation for Coulomb's Law is: F = kQ₁Q₂/r² where:

In this case, if each object had 0.6 times as much charge, the electric force between them would be:

F' = k(0.6Q₁)(0.6Q₂)/r² =

F' = (0.6)(0.6)kQ₁Q₂/r²

F' = 0.36kQ₁Q₂/r² ´

F' = 0.36F

Therefore, the electric force between the two charged objects would be 0.36 times the original force, or 0.36(85 N) = 30.6 N. So, the electric force between the two charged objects would be 30.6 N.

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The electric force between them would be 30.6 N.

The electric force between two charged objects can be calculated using Coulomb's Law:
F = kq1q2 / r^2

Where F is the electric force, k is Coulomb's constant (8.99 x 10^9 Nm^2/C^2), q1 and q2 are the charges on the objects, and r is the distance between them.

If each object had 0.6 times as much charge, then the new charges would be:
q1' = 0.6q1
q2' = 0.6q2

Substituting these values into Coulomb's Law gives us:
F' = k(0.6q1)(0.6q2) / r^2
F' = (0.6)^2 * kq1q2 / r^2
F' = 0.36 * F

So the new electric force would be 0.36 times the original electric force:
F' = 0.36 * 85 N
F' = 30.6 N

Therefore, if each object had 0.6 times as much charge, the electric force between them would be 30.6 N.

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The maximum current passing through the pump is approximately 11 amperes.

To find the maximum instantaneous power dissipated by a 2.5-hp pump connected to a 240-Vrms AC power source, follow these steps:

1. Convert the horsepower (hp) to watts (W): 1 hp is equal to 746 watts, so 2.5 hp × 746 W/hp = 1865 W.

2. Determine the maximum power: For an AC power source, the maximum power is √2 times the RMS power. So, the maximum power = 1865 W × √2 ≈ 2637.4 W.

The maximum instantaneous power dissipated by the pump is approximately 2637.4 watts.

To find the maximum current passing through the pump:

1. Use the formula: Power (P) = Voltage (V) × Current (I).

2. Rearrange the formula to solve for current: I = P / V.

3. Calculate the maximum current: I = 2637.4 W / 240 V ≈ 11 A.

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Answer:

Work is defined as force thru a distance:   W = F * S

Power is defined as Work per unit time  P = W / t

So we an write:  P = F * S / t  = 2000 N * 50 m / 5 s = 20,000 N-m/s

Since a Joule/sec is equivalent to a Watt

The power required is 20,000 Watts or 20  Kw

Also, you can convert to Hp since 1 Hp = 746 Watts

The given statement "To effectively use Gauss's Law to find an electric field, I must choose my Gaussian surface such that E is perpendicular to dA" is  False.

According to Gauss's Law, the electric flux through a closed surface is directly proportional to the charge enclosed by that surface. The choice of Gaussian surface is not dependent on the orientation of the electric field with respect to the area element (dA).

Gauss's Law states that the electric flux (∮ E · dA) through a closed surface is given by :- ∮ E · dA = (1/ε₀) ∫ ρ dV

where ∮ E · dA is the electric flux through the closed surface, ε₀ is the electric constant (also known as the vacuum permittivity), ρ is the charge density (either volume charge density or surface charge density) of the object, and dV is a differential volume element inside the closed surface.

The orientation of the electric field (E) with respect to the area element (dA) is not a determining factor in choosing a Gaussian surface. Gauss's Law holds true regardless of the orientation of E with respect to dA.  

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Examples of store-bought inhalants include: Option D.All of the above. examples are glue, paint, gasoline.

Store-bought inhalants are any product or substance that may be inhaled to produce an intoxicating or otherwise desired effect.

They are readily available over-the-counter in a variety of common consumer products, including glue, paint, and gasoline.

Inhalants are a type of drug that can cause euphoria, hallucinations, and disorientation.

Inhaling solvents can cause intoxication, dizziness, and nausea, but it can also be fatal.

These products are dangerous and should not be inhaled.

A list of store-bought inhalants include:Model glue and plastic cementSpray paint and hairsprayGasoline and other fuel productsComputer keyboard cleaner and canned airPropane, butane, and other gas productsCleaning fluids and solventsLighter fluid and fire-starting productsWhipped cream cans and other pressurized food productsMarkers and correction fluidAir freshener and deodorizer sprayIf you suspect someone is inhaling inhalants, please get them help right away.

Therefore, Option D is correct answer.

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The depletion region width decreases by a factor of √2 when the temperature of the unbiased pn junction is reduced in half under equilibrium conditions. The correct answer is the depletion region width decreases by a factor of √2.

The depletion region width of a pn junction is influenced by the doping concentrations and temperature.

W ∝ √(1/εσ(Vbi + Vr))

where W is the depletion region width, ε is the permittivity of the semiconductor, σ is the conductivity of the semiconductor, Vbi is the built-in voltage of the pn junction, and Vr is the thermal voltage (kT/q) at a given temperature.

When Vr is halved, the expression for the depletion region width becomes:

W' ∝ √(1/εσ(Vbi + (1/2)Vr))

W' ∝ √(1/εσ(Vbi + Vr/2))

W' ∝ √(1/εσVbi)

Comparing this expression to the original expression for the depletion region width (W), we can see that W' is proportional to 1/√2 times W.

Therefore, the depletion region width decreases by a factor of √2 when the temperature of the unbiased pn junction is reduced in half under equilibrium conditions.

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31250 kg m/sec was the initial momentum of the truck.

Momentum is the amount of motion of a moving body, calculated as the product of both the object's velocity and mass.

Given that,

The mass of the truck is 1250 kg with a velocity of 25 m/sec

The mass of the car is 625 kg moving with a velocity of 30 m/sec

The initial momentum of truck is = ?

The mass of the truck = 1250 kg

The velocity of the truck = 25 m/sec

The mass of the car = 625 kg

The velocity of the car = 30 m/sec

(i) The initial momentum of the truck is:

= m₁v₁

= 1250 × 25

= 31250 kg. m/sec

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The chair will accelerate at a rate of 2.6 m/s^2 when Joe exerts an applied force of 600 N, and the coefficient of kinetic friction between the chair and the carpet is 0.50.

The applied force exerted by Joe to push the chair horizontally across the floor is 600 N. The chair has a mass of 80 kg.

To determine the acceleration of the chair, we need to calculate the net force acting on it. The net force is the difference between the applied force and the force of friction. In this case, the force of friction is the kinetic friction force.

The kinetic friction force can be calculated using the formula:

Friction force = coefficient of kinetic friction × normal force

The normal force is the force exerted by the surface perpendicular to the object. In this case, it is equal to the weight of the chair, which can be calculated as:

Weight = mass × gravitational acceleration

Plugging in the values, we get:

Weight = 80 kg × 9.8 m/s^2 = 784 N

Next, we can calculate the kinetic friction force:

Friction force = 0.50 × 784 N = 392 N

The net force acting on the chair is the difference between the applied force and the friction force:

Net force = applied force - friction force

Net force = 600 N - 392 N = 208 N

Finally, we can use Newton's second law of motion to determine the acceleration of the chair:

Net force = mass × acceleration

Rearranging the equation to solve for acceleration, we get:

Acceleration = Net force / mass

Acceleration = 208 N / 80 kg = 2.6 m/s^2

In conclusion, the chair will accelerate at a rate of 2.6 m/s^2 when Joe exerts an applied force of 600 N, and the coefficient of kinetic friction between the chair and the carpet is 0.50.

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Extrasolar planet mass can be ten times as that of earth and it's size can be twice as that of earth.

GJ 504b is the planet having lowest mass detected around sun.

HAT-O-67b is the planet having the highest mass with diameter twice as that of Jupiter.

Results show that there are more small planets than the large ones which indicates that small planets are dominant in the galaxy.

Earth-sized planets are common in the galaxy.

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Newton's law of universal gravitation states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Newton's Law of Universal Gravitation states that every object with mass attracts every other object with mass. The force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. The key equation for Newton's Law of Universal Gravitation is:
F = G * (m1 * m2) / r2.
where F is the gravitational force, G is the gravitational constant, m1, and m2 are the masses of the objects, and r is the distance between their centers.

This is a general law of physics derived from experimental observations, which Isaac Newton called inductive reasoning. It is part of classical mechanics and was developed in Newton's book Philosophiæ Naturalis Principia Mathematica ("Principles of Mathematics"), first published on July 5, 1687. When Newton presented Volume 1, he did not report to the Royal Society in April 1686. Robert Hooke claimed that Newton took the right back from him.

In modern language, the law states that each element of the group attracts all other elements of the group with a force acting along a line where the two elements intersect. The force is proportional to the product of the two groups and inversely proportional to the square of the distance between them.

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Solar thermal energy is primarily used to heat homes and water, as well as to power homes. This type of renewable energy works by capturing the sun's rays and converting them into heat energy, which can be used for a variety of purposes.

It typically involves the use of solar panels or collectors that are installed on a roof or other area where they can receive direct sunlight. These panels contain a special fluid or gas that absorbs the sun's energy and heats up as a result. This heat energy can then be used to heat water, which can be used for domestic purposes such as bathing, washing clothes, and cooking.

In addition to heating water, solar thermal energy can also be used to heat homes and power homes. This is typically done through the use of a solar thermal system that includes a heat exchanger, which transfers the heat from the solar panels to the home's heating or cooling system. This can help to reduce energy costs and make homes more environmentally friendly.

Overall, solar thermal energy is a versatile and renewable source of energy that can be used in a variety of ways to help reduce our dependence on fossil fuels and reduce our carbon footprint.

Solar thermal energy systems collect and convert sunlight into heat, which can be used for various purposes. These systems typically use solar collectors to capture the sun's energy, and a heat transfer fluid to distribute the heat throughout a building or to heat water.

1. Solar collectors capture sunlight and convert it into heat.
2. Heat transfer fluid absorbs the heat and transports it to a heat exchanger.
3. The heat exchanger transfers the heat to water or air, which can be used for space heating, domestic hot water, or even heating a swimming pool.
4. In some cases, solar thermal energy can also be used to generate electricity by powering a turbine or an engine. This is called a solar thermal power plant.

In summary, solar thermal energy is a versatile and sustainable solution for heating homes and water, as well as generating electricity in certain situations.

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Answer:

cold

Explanation:

An object's momentum may be calculated mathematically by multiplying its mass by its velocity. Mass plus velocity equals momentum.

Mass in motion, which is related to the mass of a moving body, is the straightforward definition of momentum. By multiplying the mass with the velocity, the amount of motion is calculated. Momentum is defined as the result of multiplying mass and velocity.

According to a mathematical formula, an object's momentum is determined by multiplying its mass by its speed. Mass multiplied by velocity equals momentum. Momentum is represented by the lower case letter p in physics. As a result, p = m • v may be used to rewrite the previous equation.

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 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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Answer:

i don't really know the exact answer but i would say something like earthquakes or steam/excessive heat

Explanation:

Answer:

for a cell to produce a current the cell electrodes of the cell must have a potential difference option A is the correct answer

which class question is this

Answer:

2.00

Explanation:

Move the sinθ to the right.