Cliff height you are climbing in the high sierra where you suddenly find yourself at the edge of afog shrouded cliff to find the height of this cliff you drop a rock from the top and 10.0s later hear the sound of it hitting the ground at the foot of the cliff

Answer:

normal force = mg

= 159× 9.8=1470N

Answer:drfdcfrfvgtgy6hbhhbhyg vcfrfr5tgvcfrtg vcdftghegthetrgbdgtthethe3thet

Explanation:

Sdwerftyrujtnyhbvcrdefgswthyujdehrtgfyhrjfuygtdhjueyrtgehwu3y4tgrehjwheyrgdhbnsjhfgvbdnhgfdhjsdehbrvbdensdvfgreyhsdgrftyhedggrfdhsgfv

When steam at 100°C is added to ice at 0°C, the steam condenses into water and transfers its latent heat of vaporization to the ice, causing it to melt. The final equilibrium temperature will be 0°C.

In the given scenario, if the mass of steam is 1.00g and the mass of ice is 50.0g, the amount of heat transferred can be calculated using the principle of conservation of energy. The heat gained by the ice is equal to the heat lost by the steam.

To find the heat gained by the ice, we can use the equation:

Q = m × Lf

where Q is the heat gained, m is the mass of the ice, and Lf is the latent heat of fusion for ice. The latent heat of fusion for ice is the amount of heat required to convert 1 gram of ice at 0°C to water at 0°C, which is approximately 334 J/g.

Substituting the values into the equation, we have:

Q = 50.0g × 334 J/g = 16700 J

So, 16700 J of heat is gained by the ice. Since the steam is condensing and transferring its latent heat, the heat lost by the steam is also 16700 J.

To learn more about steam, Click Here: brainly.com/question/15447025

#SPJ11

Answer:

Velocity includes direction.

Explanation:

Velocity is a vector, so it has direction and magnitude.

The force experienced will be 8E-15 N.

A thin circular sheet of glass with a diameter of 7 meters has been rubbed with a cloth on one of its surfaces, resulting in a uniform charge.

A chloride ion, consisting of a chlorine atom which has gained an extra electron, passes near the glass sheet. When the chloride ion is 0.8 mm away from the center of the sheet, it experiences an electric force of 8E-15 N, directed towards the glass sheet. Using the value 8.85e-12 C2/(N·m2), this force can be calculated as follows:

F = 8.85e-12 x (Q1 x Q2) / d2

Where Q1 and Q2 are the charge of the chloride ion and the glass sheet, respectively, and d is the distance between them (0.8 mm).

Therefore, the force experienced by the chloride ion is 8E-15 N, as expected.

To learn more about force, click here:

https://brainly.com/question/12785175

#SPJ4

The magnitude of the force exerted by a 250 n/C electric field that points due east is 250 N. The direction of the force is due east.

Calculation:

Force = Electric Field Strength x Charge

F = E x q

F = (250 n/C) x (1 C)

F = 250 N

What is electric field?

Electric field is a physical force field that is created by an electric charge, such as an electron, and exerts a force on other electrically charged objects in its vicinity. Electric fields are the fundamental forces that underlie electricity and magnetism and are responsible for the attraction and repulsion of electrically charged particles.

Therefore, The magnitude of the force exerted by a 250 n/C electric field that points due east is 250 N. The direction of the force is due east.

To learn more about electric field

Here: https://brainly.com/question/14372859

#SPJ4

So, after 280 years, 0.625 kg of Po-210 will remain from an initial mass of 5 kg.

define initial mass ?

Initial mass refers to the starting amount or quantity of a substance, often used as a reference point for measuring change over time. In physics and chemistry, initial mass is commonly used in situations where a substance is undergoing a process, such as chemical reactions, radioactive decay, or physical changes, and the goal is to determine the amount remaining after a certain amount of time has passed. The initial mass serves as the baseline for these calculations and provides a way to quantify the amount of change that has occurred.

The half-life of a radioactive substance is the time it takes for half of the initial amount to decay. After one half-life, the remaining mass is half of the initial mass, after two half-lives it is a quarter, and so on.

If the initial mass of Po-210 is 5 kg, after 140 years (one half-life) the remaining mass will be:

5 kg * (1/2) = 2.5 kg

After another 140 years (two half-lives), the remaining mass will be:

2.5 kg * (1/2) = 1.25 kg

And after 280 years (four half-lives), the remaining mass will be:

1.25 kg * (1/2) = 0.625 kg.

So, after 280 years, 0.625 kg of Po-210 will remain from an initial mass of 5 kg.

To learn more about initial mass follow the given link: https://brainly.com/question/28573986

#SPJ1

The minimum mass of hydrogen gas required is  641.64 grams.

Hydrogenation is a chemical reaction between molecular hydrogen and another compound or element, usually in the presence of a catalyst such as nickel, palladium, or platinum. This process is commonly used to reduce or saturate organic compounds.

2-butene = C4H8

maximum hydrogenation = C4H10

then we require 2 H, that is 1 mol ofH2

2-butene +H2 --> butane

MW of butene = 56.106

mol of butene = mass/MW = 18000/56.106 = 320.8213mol

then we require 1:1 ratio

320.8213 mol of H2

mass = mol*MW = 320.8213*2 = 641.64 g of H2

Learn more about Hydrogenation here:

https://brainly.com/question/12833896

#SPJ4

Answer:

less

Explanation:

according to ohm's law (V=IR) the equation for current is I = V / R. the voltage is constant because the same battery is used. the resistance of a wire increases with length as well as with a smaller diameter, therefore this longer, thinner wire will have a much higher resistance. according to the equation, as resistance goes up, current goes down.

The extent of the greenhouse effect for Venus is 597.98 Kelvin if the observed surface temperature of Venus is 700 K.

The solar constant, or the amount of energy that the sun emits per unit area per unit time, can be calculated using the Stefan-Boltzmann law:

E = σT^4

where σ is the Stefan-Boltzmann constant (5.67 x 10⁻⁸ W/m² K⁴) and T is the temperature of the sun in kelvins.

The radiant energy received by Venus from the sun can be calculated as follows:

E = (σT⁴) × (πR²) / (4πd²)

where R is the radius of the sun and d is the average distance of Venus from the sun.

E = (5.67 x 10⁻⁸) × (5770)⁴ × (π × (6.955 x 10⁸)²) / (4π × (1.08 x 10¹¹)²)

E = 651.59 Joules

Next, we can calculate the temperature of Venus if it were not for the greenhouse effect, it radiates as a blackbody with an emissivity of 0.75. This temperature can be calculated using the following equation:

E = σT₁⁴

Where T₁ is the surface temperature of Venus.

T₁ = (E / σ)⁽°²⁵⁾ = (651.59 / (5.67 x 10^-8))^(1/4)

T₁ = 102.82 K

The greenhouse effect can be calculated as the difference between the observed surface temperature of Venus (700 K) and the temperature of Venus without the greenhouse effect:

Greenhouse effect = 700 K - T₁

= 700 - 102.82 = 597.18

To know more about greenhouse effect, here

https://brainly.com/question/13706708

#SPJ4

Answer:

D

Explanation:

LA FUERZA NETA ES LA FUERZA TOTAL DE EMPUJE MENOS EL PESO DEL

COHETE.

\(F_{y}\) = 700000 N(sen 90° - 20°) - 560000 N = 97785 N

The approximate vertical component of the net force that is propelling the rocket away from Earth is 112,000 N. Option B is correct.

The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. The thrust force is pointing upwards at an angle of 20 degrees, and the weight of the rocket is pointing downwards. The thrust force is the force that is generated by the rocket engine. It is the force that propels the rocket upwards.

The weight of the rocket is the force of gravity acting on the rocket. It is the force that pulls the rocket downwards. The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. If the net force is positive, the rocket will accelerate upwards. If the net force is negative, the rocket will accelerate downwards. If the net force is zero, the rocket will remain at rest.

net force = thrust force + weight

vertical component of net force = thrust force * cos(angle)

vertical component of net force = 700,000 N * cos(20 degrees) = 112,000 N. Option B is correct.

To know more about the Force, here

https://brainly.com/question/31895833

#SPJ2

Answer:

answer D. all of the above

Seismic velocities are influenced by the medium's physical characteristics, including composition, mineral phase and packing structure, temperature, and pressure.

Denser materials allow seismic waves to propagate more quickly, hence depth generally increases the speed of seismic waves. Seismic waves are slowed in abnormally hot regions. A liquid conducts seismic waves more slowly than a solid does. Due to the fact that P waves and S waves cannot propagate through liquid, molten regions of the Earth slow P waves and block S waves.

There are two different types of waves produced by earthquakes: primary (P) and secondary (S). Based on when they come and how they feel on the surface, they are classified.

To know more about seismic waves, visit:

https://brainly.com/question/9645077

#SPJ4

The physical properties of the medium, such as composition, mineral phase and packing structure, temperature, and pressure, have an impact on seismic velocities.

What are seismic wave?

The speed of seismic waves is typically increased by depth because denser materials allow for faster seismic wave propagation. In areas that are abnormally hot, seismic waves slow down. Seismic waves are conducted more slowly by liquids than by solids. Molten parts of the Earth impede P waves and block S waves because P waves and S waves cannot travel through liquid.

Primary (P) and secondary (S) waves are the two main types of seismic waves that are generated. They are categorized based on when they arrive and how they feel on the surface.

To learn more about seismic waves.

brainly.com/question/9645077

#SPJ1

Answer:

B mate

Explanation:

Answer:

They have holes that are positively charged

Explanation:

There are two types of semiconductors i.e. p-type and n-type.

p-type is a type of semiconductor that is formed when a trivalent impurity is added to an intrinsic semiconductor like silicon or germanium. Boron (B), Gallium (Ga), Indium(In), Aluminium(Al) etc are trivalent impurities. Due to this combination, a large number of holes are created in it.

Hence, p-types of semiconductors have holes that are positively charged.

To find the distance traveled in 50 seconds by an object traveling at a velocity of v(t), you need to integrate the velocity function over the given time interval.

Let's assume that the velocity function is denoted by v(t) and represents the velocity of the object at any given time t.

To find the distance traveled, we need to integrate this velocity function over the interval [0, 50] seconds.

The definite integral of the velocity function v(t) with respect to time t will give us the displacement or distance traveled.

The integral of v(t) from 0 to 50 is represented as:

\int_{0}^{50} v(t) dt

To compute this integral, you will need the specific function v(t) that describes the object's velocity at any given time. After evaluating the definite integral, you will get the distance traveled by the object in the given time interval.

Note that without knowing the specific velocity function, it is not possible to provide a numerical value for the distance traveled.

In summary, to find the distance traveled in 50 seconds by an object with a velocity function v(t), you need to integrate the velocity function over the given time interval [0, 50].

Learn more about distance traveled from the given link:

https://brainly.com/question/12696792

#SPJ11

Answer:

12.6 s

Explanation:

y =  1/2 at^2

780.1 =  1/2 ( 9.81) t^2           answer can only have 3 s.d. due to the 9.81

t = 12.6 s

Answer:

2000 cm³

Explanation:

Assuming the pressure is constant:

V / T = V / T

1000 cm³ / 300 K = V / 600 K

V = 2000 cm³

If an object with a mass of 245 kg is moved 76 meters in 18 seconds, the power used to move the object is approximately 10162 watts.

The power used to move an object can be calculated using the formula:

Power = Work/Time

The work done to move an object can be calculated using the formula:

Work = Force × Distance

In this case, the force required to move the object can be calculated using Newton's second law, which states that the net force acting on an object is equal to its mass times its acceleration:

ΣF = ma

Since the object is moving in a straight line with a constant velocity, its acceleration is zero, and the net force acting on it is also zero. Therefore, the force required to move the object is equal to its weight, which can be calculated using:

Weight = mass × gravity

where gravity is the acceleration due to gravity, which is approximately9.81 m/s^2.

Substituting the given values, we get:

Weight = 245 kg × 9.81 m/s^2 = 2404.45 N

The work done to move the object can be calculated using:

Work = Force × Distance

Substituting the given values, we get:

Work = 2404.45 N × 76 m = 182917 J

The power used to move the object can be calculated using:

Power = Work/Time

Substituting the given values, we get:

Power = 182917 J / 18 s ≈ 10162 W

Therefore, the power used to move the object is approximately 10162 watts.

To know more about power please refer: https://brainly.com/question/14450944

#SPJ4

The fraction of the volume of the board below the surface of the water is 0.35. Option A is correct.

To determine the fraction of the volume of the board below the surface of the water, we can compare the densities of the board and the water.

The board has a density of 350 kg/m³, and the water has a density of 1000 kg/m³.

When an object floats in a fluid, it displaces an amount of fluid equal to its own weight. For the board to float, the weight of the water displaced by the submerged portion of the board must be equal to the weight of the board itself.

Let's calculate the weight of the board first;

Weight of the board = Volume of the board × Density of the board

The volume of the board is calculated by multiplying its dimensions:

Volume of the board = Length × Width × Thickness

Given;

Length = 3.00 m

Width = 20.0 cm = 0.20 m

Thickness = 5.00 cm = 0.05 m

Density of the board = 350 kg/m³

Volume of the board = 3.00 m × 0.20 m × 0.05 m = 0.03 m³

Weight of the board = 0.03 m³ × 350 kg/m³ = 10.5 kg

To find the fraction of the volume below the surface of the water, we need to determine the volume of water displaced by the submerged portion of the board. This volume can be calculated using Archimedes' principle:

Volume of water displaced = Weight of the board / Density of water

Given;

Density of water = 1000 kg/m³

Volume of water displaced = 10.5 kg / 1000 kg/m³ = 0.0105 m³

Finally, the fraction of the volume of the board below the surface of the water can be calculated as;

Fraction = Volume of water displaced / Volume of the board

Fraction = 0.0105 m³ / 0.03 m³ = 0.35

Therefore, the fraction of the volume of the board below the surface of the water is 0.35.

Hence, A. is the correct option.

To know more about volume here

https://brainly.com/question/28058531

#SPJ4

The intensity of the laser beam if the radius of the beam is 1.50 × 10⁻³ m, and the power is 1.30 × 10⁻³ is 183.9 W/m².

The intensity of the laser beam can be calculated using the formula:

I = P/A

where I is the intensity, P is the power, and A is the cross-sectional area of the beam.

The cross-sectional area of the beam can be calculated using the formula for the area of a circle:

A = πr²

where r is the radius of the beam.

Substituting the given values:

r = 1.50 x 10⁻³ m

P = 1.30 x 10⁻³ W

A = π(1.50 x 10⁻³)₂

= 7.07 x 10⁻⁶ m₂

So, the intensity of the laser beam is:

I = 1.30 x 10⁻³ W / 7.07 x 10⁻⁶ m

= 183.9 W/m²

Therefore, the intensity of the laser beam is 183.9 W/m².

Learn more about intensity of the laser beam: https://brainly.com/question/30756804

#SPJ11

none of the above. According to Newton's third law of motion, for every action, there is an equal and opposite reaction.

In this case, if Joshua is attracted toward Earth by a 500 N gravitational force, then by Newton's third law, Earth is also attracted toward Joshua with an equal and opposite force of 500 N. The gravitational force between two objects is always mutual and equal in magnitude but opposite in direction.

Newton's third law of motion states that for every action, there is an equal and opposite reaction. This means that when an object exerts a force on another object, the second object exerts an equal and opposite force on the first object. The forces always occur in pairs and act on two different objects.

For example, if you push against a wall with a certain amount of force, the wall pushes back on you with an equal amount of force in the opposite direction. Another example is the propulsion of a rocket. The rocket pushes exhaust gases backward, and in response, the gases push the rocket forward with an equal force.

Learn more about Newton's third law of motion here:

https://brainly.com/question/29768600

#SPJ11

The energy released per kilogram of fuel used is mathematically given as  

energy release per kg= 6.702*10^{-13}. This is further explained below.

Generally, is simply defined as

Energy used per person per year in US = 3-5 X 10^11

Population (No. of person)= 3.1x 10^8

Mass of feut required = 3.5x10^11 x3-1x10 8 x 10 )/6.703 X10^{13} kg

Mass of feut required = 1.62x10^{33}kg

Solution: Mev in Joule 6 = 10 1.60* I0^{-19} J

1 Mev= 1.602 X 10 T

energy release per kg= 1.602*10^{13}/2.39x10^{-3}

energy release per kg= 6.702*10^{-13}

In conclusion, Energy

energy release per kg= 6.702*10^{-13}

Read more about Energy

https://brainly.com/question/13439286

#SPJ1

Answer:

The laws of thermodynamics define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium.

The face-centered cubic (FCC) lattice has a packing density of approximately 74%.

The packing density refers to the percentage of space occupied by the atoms or spheres in a crystal lattice. In the case of the FCC lattice, each corner of the unit cell is occupied by an atom, and there are atoms at the center of each face of the cube. This arrangement allows for efficient packing, with each atom in contact with 12 neighboring atoms.

To calculate the packing density, we consider the fraction of the unit cell volume that is occupied by the atoms. In the FCC lattice, each atom contributes 1/8th of its volume to the unit cell.

The packing density is given by:

Packing Density = (Number of atoms per unit cell) * (Volume of each atom) / (Volume of the unit cell)

In the FCC lattice:

Number of atoms per unit cell = 4 (8 corners × 1/8th contribution)

Volume of each atom = (4/3) × π × r³ (assuming atoms are spherical)

Volume of the unit cell = a³ (where a is the lattice constant)

Substituting the values:

Packing Density = (4 × (4/3) × π × r³) / (a³)

The lattice constant (a) is related to the atomic radius (r) by:

a = 4 × r / sqrt(2)

Substituting this relation:

Packing Density = (4 × (4/3) × π × r³) / ((4 × r / sqrt(2))³)

= (4 × (4/3) × π × r³) / (4³ × r³/ (sqrt(2))³)

= (4 × (4/3) × π × r³) / (64 × r³ / 2^(3/2))

Simplifying further:

Packing Density = (4  (4/3) × π × r³ × 2^(3/2)) / (64 × r³)

= (4 × π × sqrt(2)) / 48

≈ 0.74048

Converting to percentage:

Packing Density (%) ≈ 74%

Therefore, the face-centered cubic (FCC) lattice has a packing density of approximately 74%.

Learn more about Crystal lattice:

brainly.com/question/13008800

#SPJ11

Answer:

Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion.

Explanation:

Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.

Hope this helps :)

The speed of the wave on a string is given by Taylor's formula:

where

F = tension force

μ = linear density = mass per unit length

But also we can say the speed of any wave is given by:

where:

λ = wave length

f = frequency

Plug the second equation in the first one. We get:

Now solve for f:

Lets say wave length is the same on the second case. Since it's the same string μ will also be the same.

See that 340 N = 2 x 170, so we can write:

Answer:

I drive my car at a speed of 30m/s is speed

I drive my car at a speed of 30m/s northward is velocity

Answer:

because of its height from the ground,the weather up is colder than the ground which makes the air turn cold

Lenz's Law, formulated by the Russian physicist Heinrich Lenz in 1834, is a fundamental principle in electromagnetism that describes the direction of an induced current in a conductor in response to a changing magnetic field.

When a loop of conducting wire with length l and width w enters a magnetic field b at velocity v, the induced current will travel in a counterclockwise direction. This is due to Lenz's Law, which states that an induced current in a circuit will always flow in a direction that opposes the change in the magnetic field that caused it. Since the loop is entering the magnetic field, the induced current will flow in such a way as to create a magnetic field that opposes the direction of the original magnetic field, which is counterclockwise.

Learn more about magnetic field here ;

https://brainly.com/question/19542022

#SPJ11