How big is depth of the Grand Canyon?

Answer:

3683.67 m

Explanation:

Formula for maximum height of projectile is given by the equation;

h = u²/2g

Where u is initial velocity and g is acceleration due to gravity

We are given u = 190 m/s

Thus;

h = 190²/9.8

h = 36100/9.8

h = 3683.67 m

True, nuclear power plants can provide carbon-free energy production.

Nuclear power plants produce electricity by harnessing the energy released from nuclear reactions. Unlike fossil fuel power plants, which emit carbon dioxide and contribute to greenhouse gas emissions, nuclear power plants do not produce carbon dioxide during operation. Therefore, they can be considered a source of carbon-free energy production.

However, it is important to note that although nuclear power plants do not directly produce carbon emissions during their operation, the entire life cycle of nuclear power involves some carbon emissions. These emissions primarily come from activities such as uranium mining, fuel processing, plant construction, and waste management. Additionally, the potential risks associated with nuclear power, such as accidents or the proper disposal of nuclear waste, need to be carefully considered.

While nuclear power can contribute to a low-carbon energy mix, it is essential to weigh the benefits against the potential risks and carefully manage all aspects of nuclear energy production to ensure its safety and environmental impact.

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(a) The wavelength of the resonance created is 0.8 m.

(b) The speed of the sound in the fundamental mode is 400 m/s.

(c) The low value of speed of speed of sound in water calculated may be as a result of low temperature of the water poured into the cooking pot.

The wavelength of the resonance created is determined by assuming the cooking pot to be a closed pipe.

Wavelength of fundamental mode of a closed pile = 4L

where;

λ = 4 x 0.2 = 0.8 m

The speed of the sound in the fundamental mode is calculated as follows;

v = fλ

v = 500 x 0.8

v = 400 m/s

Sound wave is directly proportional to temperture, as the temperature of the water increases, the speed of sound increases as well.

The low value of speed of speed of sound in water calculated may be as a result of low temperature of the water poured into the cooking pot.

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The two hockey players move off together at a common velocity of 7 m/s after the collision.

What is principle of conservation of momentum?

We can apply the momentum conservation concept to resolve this issue. This rule states that a closed system's total momentum is conserved both before and after a collision.

The product of an object's mass and velocity determines its momentum. As a result, we can determine each hockey player's momentum prior to the contact using the formulas below:

The total momentum of the system before the collision is the sum of these individual momenta:

           p_total = p1 + p2 = 420 kg m/s + 560 kg m/s = 980 kg m/s

The two hockey players fall off together after the collision. After the collision, their velocities are unknown to us, but we do know that their total momentum is still preserved. Hence, we can write:

                     p_total = (m1 + m2) * v_total

where v_total is the common velocity of the two hockey players after the collision. We can rearrange this equation to solve for v_total:

v_total = p_total / (m1 + m2)

= 980 kg m/s / (70 kg + 70 kg)

= 7 m/s

Therefore, the two hockey players move off together at a common velocity of 7 m/s after the collision.

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The electric flux through a square having sides of length a that is located 1/3 of the distance between the left and right surfaces can be calculated as follows Now, consider the following two statements:

In a static equilibrium situation, there can be no electric field inside the conductor. Let us consider the segment AB of the surface1 such that point A is at the edge of the square and point B is in the middle of the segment joining the two surfaces. Since the surface is at the same potential, the potential difference between A and B is zero. Let C be the point where the perpendicular bisector of AB meets the surface2. .

By statement 2, there is no electric field inside the conductor and hence there is no potential difference inside the conductor. Therefore, the potential difference between A and C is equal to the potential difference between B and C which is of the potential difference between the surfaces. Let the potential difference between the surfaces be V.

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The answers are:

A:  The impulse applied to the ball is -6.75 kg m/s.

B:  The force applied to the ball is -15.0 kg m/s^2, or 15.0 N.

a) Impulse is defined as the change in momentum of an object and can be calculated as the product of force and time. Momentum is given by the equation:

p = m * v

where m is the mass of the object and v is its velocity. The impulse applied to the ball is equal to the change in its momentum:

Δp = m * (vf - vi)

where vi is the initial velocity of the ball (38 m/s) and vf is its final velocity (27 m/s).

Substituting the values, we get:

Δp = 1.5 kg * (27 m/s - 38 m/s)

Δp = -6.75 kg m/s

So, the impulse applied to the ball is -6.75 kg m/s.

b) Force is defined as the impulse per unit time and can be calculated as:

F = Δp / Δt

where Δt is the time for which the force was applied (0.45 sec).

Substituting the values, we get:

F = (-6.75 kg m/s) / (0.45 s)

F = -15.0 kg m/s^2

So, the force applied to the ball is -15.0 kg m/s^2, or 15.0 N.

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Answer:

1) 916 kg/m³

2) 9.8566×10⁴ Pa

Explanation:

1) Originally, the water is at the same level on both sides.  When the oil is added, one side goes down 67.5 mm and the other side goes up 67.5 mm.  The top of the oil is 12.3 mm above the water, so the total height of the oil relative to the low end of the water is:

12.3 mm + 67.5 mm + 67.5 mm = 147.3 mm

And the height of the water relative to the low end is:

67.5 mm + 67.5 mm = 135 mm

The pressure at the bottom of the oil equals the pressure of the water at the same elevation.

P = P

ρgh = ρgh

ρh = ρh

ρ (147.3 mm) = (1000 kg/m³) (135 mm)

ρ = 916 kg/m³

2) P = ρgh

P = (1.3608×10⁴ kg/m³) (9.7835 m/s²) (0.74035 m)

P = 9.8566×10⁴ Pa

When the absorption spectrum of light from distant galaxies is measured it is found that lines in absorption spectrum are shifted towards the red end of  spectrum.

What is Absorption Spectrum ?

The Absorption Spectrum is constituted by the frequencies of light transmitted with dark bands when electrons absorb energy in ground state to reach higher energy states. Absorption Spectrum is produced when atoms absorb energy .

The Absorption Spectroscopic technique that is used for measuring the absorption of radiation as it interacts with sample.

So , we conclude that , after measurement of absorption spectrum of light it is found that the lines in absorption spectrum are shifted towards the red end of  spectrum.

Therefore , the result after measurement of absorption spectrum of light from distant galaxies is explained above .

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Answer:

Ionic Compound

Explanation:

We know that an ionic compound dissolves easily in water. Its melting point is very high, and it is a conductor.

The equation for Ionic Compound (IC) versus Electricity (EC) is

IC=1/2 divided by EC

EC is the base for the mathematics, so EC is a base warmth at 360.

360 divided by 1/2 is 180

That is the speed in which the current has.

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The frequency of the tuning fork would be in tune with the wire is 384Hz.

The rate at which current changes direction each second is known as frequency. One hertz (Hz), which is a unit of measurement used internationally, equals one cycle per second.

How frequently a periodic wave form or signal repeats itself at a specific amplitude is expressed as frequency. It can be measured in hertz, kilohertz, megahertz, etc.

Frequency of fundamental v = 1/2L \(\sqrt{T/M}\)

1st case 256 = 1/2×48 \(\sqrt{T/M}\)  (1)

2nd case v = 1/2×32 \(\sqrt{T/M}\) (2)

dividing (2) by (1) we get,

v/256 = 2×48/2×32

v/256 = 96/64

v/256 = 1.5

v = 1.5×256

v = 384Hz.

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The maximum height an object reaches after being thrown from the surface of the Earth for 6.2 s is given by the formula H = v0t - 1/2gt² .

Where H is the maximum height, v0 is the initial velocity, t is the time, and g is the acceleration due to gravity.Since the object is thrown vertically upward, its initial velocity is zero.

Thus, the formula reduces to H = -1/2gt².Substituting g = 9.8 m/s² and t = 6.2 s, we get:H = -1/2(9.8 m/s²)(6.2 s)²H = -1/2(9.8 m/s²)(38.44 s²)H = -1/2(376.312 m)H = -188.156 mTherefore, the maximum height the object reaches is 188.156 m, to two decimal places.

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To find the speed at which the bicycle is traveling, we can use the formula that relates the circumference of the wheel to the distance covered in one revolution. By multiplying the circumference by the number of revolutions per minute, we can determine the speed of the bicycle.

The circumference of a circle can be calculated using the formula C = 2πr, where r is the radius of the circle. In this case, the bicycle wheels have a diameter of 26 inches, so the radius is half of that, which is 13 inches. Converting the diameter to inches, the circumference of each wheel is 2π(13) = 26π inches.

Given that the wheels are rotating at 160 RPM, we can multiply the circumference by the number of revolutions per minute to find the distance covered in one minute. This can be converted to the speed in inches per minute.

To obtain the speed in a more common unit, we can convert inches per minute to miles per hour by using appropriate conversion factors. Finally, rounding the answer to three decimal places provides the speed at which the bicycle is traveling down the road.

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Answer:

Burrowing animals can cause weathering. By digging for food or making space to live in the animal may break apart rock. The growing roots of a tree can also break apart rock.

Answer:

Its D Kr and Xe

Explanation:

Element from the same group have simmilar properties

If you now the atomic number ،its so easy to know how much electrons they have in outermost shell.

Answer:

D. Krypton and Xenon

Explanation:

laws of reflection

I = r

angle of incident = angle of reflection

35 = 35

A stone falls from rest from the top of high tower. Ignore air resistance and take g=9.8m/s squared,  s = 30.625 m

Electrical resistance, which opposes the flow of current, is resistance to electricity. In this sense, it acts as a gauge for the difficulty of current flow. Ohms are a unit of measurement for resistance.

R stands for resistance, which is measured in ohms. A resistor is indeed a machine made to create resistance. You can use resistors to divide voltage, restrict current, or produce heat. The two most common varieties of resistors are fixed and variable.

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Explanation:

PRIMERO HACES EL RECUENTO DEL TIEMPO Y LO CONVIERTES EN

SEGUNDOS Y ENTONCES

t = 227 s      \(t_{AB}\) = 227 S - 38 s = 189 s

\(t_{BC}\) = 38 s

LUEGO USANDO LA ECUACIÓN DE GALILEO GALILEI SSUPONIENDO

QUE EL MOVIL VIAJA A VELOCIDAD CONSTANTE

v = 3.50 m/189 s = 0.0185 m/s

PARA LA DISTANCIA NTRE B Y C

\(x_{BC}\) = 0.0185 m/S( 38 s) = 0.703 m

LA HORA EN QUE EL MOVIL PASA POR A ES

11:43:15 - 38 s - 189 s = 11:39:29

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

Answer:

Glass is an optically denser medium than air and water.

Explanation:

hope it helps have a nice night!

Answer:

The speed of light depends on the optical density of the medium. Therefore, light travels with different speeds in different media having different optical densities. For example, the speed of light in air is 3 × 108 m/s, whereas that in glass is 2 × 108 m/s and in water, it is 2.25 × 108 m/s

The specific heat capacity of tungsten given the data from the question is 0.17 J/gºC

Mass of tungsten (M) = 100 g

Temperature of tungsten (T) = 100 °C

Mass of water (Mᵥᵥ) = 200 g

Temperature warm water (Tᵥᵥ) = 20 °C

Specific heat capacity of the water (Cᵥᵥ) = 4.184 J/gºC

Equilibrium temperature (Tₑ) = 21.6 °C

Specific heat capacity of tungsten (C) = ?

Heat loss = Heat gain

MC(T – Tₑ) = MᵥᵥCᵥᵥ(Tₑ – Tᵥᵥ)

100 × C × (100 – 21.6) = 200 × 4.184(21.6 – 20)

100 × C × 78.4 = 1338.88

Divide both sides by 100 × 78.4

C = 1338.88 / (100 × 78.4 )

C = 0.17 J/gºC

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Answer:

Mass, velocity, and radius are all related when you calculate centripetal force. ... The equation shows that if you increase mass or speed, you'll need a larger force; if you decrease the radius, you're dividing by a smaller number, so you'll also need a larger force.

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Answer: 1. 12 MPH 2. 36m 3. 8 Hz

Explanation:

Answer:

1. 12 MPH 2. 36m 3. 8 Hz

Explanation:

For #1, I multiplied 6 by 2, For #2 I multiplied 6 by 6 and for #3 it's 8 x 2

Answer:

The distance traveled by the man during the acceleration is 1186.32 meters

Explanation:

The initial velocity of the man = 40 m/s

The added acceleration rate of the man to outrun = 2.5 m/s²

The time of acceleration = 12 seconds

The relevant kinematic equation of motion is given as follows;

s = u·t + 1/2·a·t²

Where;

u = The initial velocity of the car the man is driving = 40 m/s

t = The time of travel during acceleration of the car the man is driving = 12 seconds

a = The acceleration by the man to outrun the cops = 2.5 m/s²

s = The distance traveled by the man during the acceleration

Substituting, gives;

s = 40 × 12 + 1/2 × 9.81 × 12² =  1186.32

The distance traveled by the man during the acceleration = s = 1186.32 m.

The greatest static resistance between the upper and lower block is f1max = f 1max = s m 1g = 0.6×2×10 = 12N.

According to Newton's second law of motion, an object's net force must equal the sum of its mass and the acceleration it experiences. In the direction of the net force is where acceleration is moving.

The force of action and reaction between two bodies is equal in magnitude but opposite in direction, according to Newton's third law of motion. The highest frictional force that prevents slippage on a surface is known as the limiting friction force.

The highest static resistance between the lower block and the ground is

f2max

​ =μ s (m 1 +m 2 )g=0.6(2+2)10

=24N

Assumedly, both blocks move to the right at the same speed.

Consequently, (m 1 + m 2 )a = T- μk (m1 + m2)g

or 4a = T - 0.4(2+2)10

or a = T-16 / 4

for upper block, f1 = 2a = T - 16 / 2

For just sliding, f1 = f1max

or T - 16 / 2 = 12

or T - 16 = 24 => T = 40N

The complete question is:

You are lowering two boxes, one on top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 15.0 cm/s. The coefficient of kinetic friction between the ramp and the lower box is 0.441, and the coefficient of static friction between the two boxes is 0.834. (a) What force do you need to exert to accomplish this? (b) What are the magnitude and direction of the friction force on the upper box?

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Factors influencing incoming solar radiation include solar angle, atmospheric conditions, and surface characteristics.

Several factors influence the amount of solar radiation reaching Earth's surface. The solar angle, determined by the Earth's tilt and position in its orbit, affects the intensity of radiation. Atmospheric conditions such as cloud cover, aerosols, and pollution can scatter or absorb radiation. Surface characteristics, such as albedo (reflectivity) and vegetation, also influence the amount of incoming radiation.

The composition of incoming solar radiation consists primarily of visible light, ultraviolet (UV) radiation, and infrared (IR) radiation. Visible light is the range of wavelengths perceived by human eyes. UV radiation has shorter wavelengths and can be harmful to living organisms. IR radiation has longer wavelengths and carries heat energy.

Once solar radiation enters the atmosphere, several processes occur. Approximately 30% of incoming radiation is reflected back into space by clouds, atmospheric particles, and the Earth's surface. About 20% is absorbed by the atmosphere, including gases like ozone and water vapor. The remaining 50% reaches the Earth's surface, where it is absorbed by land, water, and vegetation, contributing to various physical and biological processes such as heating the Earth's surface, driving weather patterns, and supporting photosynthesis.

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Answer:

The act of immediately discharging electrical energy into the Earth directly with the aid of a low-resistance wire is known as earthing. Electrical earthing is accomplished by attaching the equipment's non-current-carrying component or the supply system's neutral section to the ground.

Four reasons why it's crucial to ground electrical equipment:

1. Increased longevity of appliances: Grounding electrical appliances results in less stress on the equipment and a reduction in the exposure of the appliances to hazardous currents.

2. Eradication of fire risk: If there is a problem with the insulation, there may be a spark, which could cause a fire and damage to property. The risk of fire is decreased by grounding electrical equipment by sending leakage current from insulation faults to the ground.

3. Protection from electrical surges: Electrical surges, whether brought on by lightning or for other reasons, produce dangerously high voltage. All the hazardous electricity will flow to the ground rather than causing harm to the electrical system if your appliances or electrical system as a whole is grounded.

4. Voltage Stabilization: Ideally, the ground's potential is zero. Therefore, all electrical devices use the earth as a point of reference. Calculating the required potential for each electrical appliance would be challenging without a reference point.

Electrocution is the term for when electricity enters the body. Burns, respiratory failure, neurological effects, and heart failure are all results of high-current electric shock. It might even result in death. Therefore, in the event of an insulation fault, a safe path for the current to flow must be provided via earthing.

Explanation:

The Earth serves as an efficient pathway for the flow of electrons that escape the insulation because it is a good conductor of electricity. Additionally, the Earth's enormous size creates a pathway for the safe discharge of electric charge. No current escapes from a device that is properly grounded. In the event that the device develops an internal problem, this stops people from being shocked or electrocuted. Electronic equipment is stabilized by earthing. It shields appliances from over-current or excessive voltage. Earthing is another fire safety measure. Overvoltage can cause a device to spontaneously combust due to overheating.

The electric potential energy of the proton when it is first released from rest is 4.8 × 10^-16 J.

In the given scenario, a proton is placed adjacent to plate A and is released at rest. This means that the initial velocity of the proton is zero. Initially, the proton is at a distance of 2.4 m from plate B and at a potential energy of 1500 V.

Later, the proton moves towards plate B as it experiences a force. This force is due to the electric potential difference between plate A and plate B.

Due to the electric force, the proton accelerates, and its speed increases with time.

As the proton moves towards plate B, the potential energy of the proton decreases.

This decrease in potential energy is due to the conversion of potential energy into kinetic energy. This happens because the proton gains speed as it moves towards plate B.

Hence, its potential energy decreases, and its kinetic energy increases. We can calculate the initial potential energy of the proton using the formula for electric potential energy.

The electric potential energy (U) of a charge (q) in an electric field (E) is given by

U = q × E × d,

where d is the distance between the plates.

We know that the charge of a proton is e = 1.60 × 10^-19 C.

The electric field (E) between the plates is given by E = V/d,

where V is the potential difference between the plates.

Here, V = 1500 - (-1500) = 3000 V.

The distance between the plates is d = 2.4 m.

Therefore, the electric field

E = 3000/2.4

= 1250 V/m.

Substituting the values in the formula, we get

U = 1.60 × 10^-19 × 1250 × 2.4

= 4.8 × 10^-16 J.

Hence, the initial potential energy of the proton is 4.8 × 10^-16 J.

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