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What is the acceleration of the 5 kg box that has a 25 N force and 50 N force applied both right?



What is the acceleration of the 5 kg box that has a 25 N force and 50 N force applied both right?



15 m/s to the right



500 m/s to the right



75 m/s to the right



100 m/s to the right

Answer:

temperature inside the balloon so it is warmer than the surrounding air

Explanation:

For the balloon to get an uplift , it should be lighter than air . That means the density of the gas inside should be less than the density of air outside . only then ,  weight of the balloon plus the weight of the air inside balloon  will become less than the weight of displaced air outside . This can be achieved by warming up the air inside. Its temperature must exceed that of outside air.

The option that best explain how the pilot can make the balloon rise is option D. The pilot can increase the temperature inside the balloon so it is warmer than the surrounding air

An object will float in air when the density of the object is lower than the density of the air.

Increase in temperature of a gas decreases the density of the gas.

For the pilot to make the balloon rise, he must find a way to make the balloon more lighter than air. To do this, he has to increase the temperature of the balloon.

In this question, the pilot can increase the temperature inside the balloon so it is warmer than the surrounding air in order for the balloon to quickly rise several feet higher above some trees in distance.

Therefore, option D best explain how the pilot can make the balloon rise.

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The relationship between the plasma frequency wp and the refractive index

nwp² = n² + k²

The plasma frequency wp for a material is defined as the frequency at which its refractive index becomes equal to 1. Hence, for silver, at w = wp: 0.006 = sqrt(1 - k²) and 3.524 = kwp = wp*sqrt(1 - 0.006²)wp = 1.39 * 10^16 rad/sNow, let's calculate the reflectance. We know that the reflectance R of a thin film of thickness t on a substrate with refractive index n is given by

R = ((n² + k²) - 1)/(n² + k² + 1)

In the case of silver, we can assume that the film is so thin that the reflectance will be equal to that of the bulk material, which we can find from the refractive index. Hence,R = ((0.006² + 3.524²) - 1)/(0.006² + 3.524² + 1) = 0.995So the reflectance is approximately 0.995.e) The diffraction pattern produced by a remote aperture can be described using the Fourier transform of the aperture function.

If we know the intensity distribution of the diffraction pattern, we can use the inverse Fourier transform to obtain the aperture function. However, this process is not always straightforward, especially if the diffraction pattern has noise or the aperture is not a simple shape.To reconstruct the aperture from the diffraction pattern, we can use techniques such as phase retrieval or iterative algorithms. These methods involve making assumptions about the aperture and iteratively refining the aperture function until it matches the observed diffraction pattern. The specific algorithm used will depend on the details of the experiment and the aperture function being reconstructed.

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The velocity of the stuntman once he has left the cannon is approximately 8.95 m/s.

To find the approximate velocity of the stuntman once he has left the cannon, we can use the principle of conservation of mechanical energy.

The potential energy stored in the compressed spring is converted into kinetic energy of the stuntman as he is launched out of the cannon. Neglecting friction and air resistance, we can equate the potential energy of the compressed spring to the kinetic energy of the stuntman:

1/2 * k * x^2 = 1/2 * m * v^2

Where:

k is the spring constant (278 N/m)

x is the compression of the spring (4 m)

m is the mass of the stuntman (55 kg)

v is the velocity of the stuntman

Substituting the values into the equation:

1/2 * 278 N/m * (4 m)^2 = 1/2 * 55 kg * v^2

Simplifying the expression:

278 N/m * 16 m^2 = 55 kg * v^2

Solving for v^2:

v^2 = (278 N/m * 16 m^2) / 55 kg

v^2 = 80.1454 m^2/s^2

Taking the square root of both sides to find v:

v ≈ 8.95 m/s

Therefore, the approximate velocity of the stuntman once he has left the cannon is approximately 8.95 m/s.

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Properties seen in network covalent compound are : high melting and boiling points, hardness, insolubility in polar solvents, electrical insulators.

A network covalent compound is a type of covalent compound where the atoms are bonded together by a continuous network of covalent bonds, forming a giant molecule or a macromolecule.

Some of the properties you would expect to observe with a network covalent compound are:

High melting and boiling points: Network covalent compounds have strong covalent bonds throughout the structure, so a large amount of energy is required to break these bonds, resulting in high melting and boiling points.

Hardness: The strong covalent bonds between atoms in network covalent compounds make them rigid and hard, which is why many of these compounds, such as diamond and silicon carbide, are used as abrasives.

Insolubility in polar solvents: Network covalent compounds are typically insoluble in polar solvents like water because the polar molecules cannot break the strong covalent bonds between the atoms in the network.

Electrical insulators: Most network covalent compounds are electrical insulators because they have no free electrons or ions to carry an electric current.

Brittle: Due to the strong covalent bonds, network covalent compounds are typically brittle, meaning that they fracture easily when subjected to stress.

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In the given question, a car coasts into a hill at 16.0 m/s and it slows down with a uniform acceleration of -1.0 m/S/S.

to find,

the displacement after 5.0s,    s=60m

the displacement after 10.0s,   s=80m

according to the equation of motion,

s=ut+1/2at^2

a) t=5second, u=16m/s

s=ut+1/2at^2

s= 16*5 + 1/2 (-1.6) 5^2

s=80-20

s=60m

b)t= 10second , u=16m/s

s=ut+1/2at^2

displacement s=16*10 + 1/2 (-1.6)*10^2

displacement s=80m

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You will need Latitude and Longitude to calculate the distance between two points using the formula: =acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos(lon2-lon1)) *6371 (6371 is Earth radius in kilometers) (6371 is Earth radius in km.)

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When the car is stopped by the bumpers, the maximum deflection in each spring can be determined by analyzing the forces acting on the car. Since the car is freely coasting, its kinetic energy is converted into potential energy stored in the springs.

First, we calculate the initial kinetic energy of the car:

Kinetic Energy = (1/2) * mass * velocity^2

= 112,500 lb-ft

Potential Energy = (1/2) * kA * deflectionA^2 + (1/2) * kB * deflectionB^2

To determine the maximum deflection in each spring, we need to find the point where the potential energy is maximized while satisfying the condition that the car is completely stopped. By taking the derivative of the potential energy equation with respect to each deflection and setting them equal to zero, we can solve for the maximum deflections. However, since the equations involve second-order terms, a detailed calculation is required to find the precise values.

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The basic formula is °C + 273.15 = K. The basic formula for converting Fahrenheit into Celsius is (°F − 32) × 5/9 = °C. To convert Fahrenheit degrees into Kelvins, (°F − 32) × 5/9 + 273.15 = K.

The gravitational field strength at the location where the experiment was conducted is nearly 1.56 m/s².

In the given experiment, the length of the pendulum is 0.5m, and it took 81 seconds for the pendulum bob to oscillate 10 times.

Use of the relationship between the length of the pendulum and its period of oscillation.

The period of a simple pendulum is given by the formula:

T = 2π\(\sqrt{(L/g)}\)

Where:

T = period of the pendulum

L = length of the pendulum

g = gravitational field strength

g = (4π²L) / T²

Substituting the given values:

g = (4π² × 0.5) / (81/10)²

= 1.56 m/s²

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Answer:

Mass is the amount of matter an object has, and volume is the amount of space the matter takes up. Solids are easy to recognize. They have definite shape, mass, and volume. Trees are solids.

Explanation:

The amount of space occupied by a gas is called volume of the gas. The volume of a gas depends on the temperature and pressure.

Volume is a physical parameter describing the space occupied  by a substance. Volume is an extensive property. Therefore, volume is dependent upon amount of the substance.

The total amount of a substance is called its mass. Density describes how closely its particles are packed in a given volume. Hence, volume is the ratio of mass to the density.

Volume of a gas changes with its temperature and pressure. As the pressure increases, volume increases whereas, as the temperature increase, volume increases.

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Answer:

Held

~Hope it Helps!~

Answer:

Red is your warm front.
Blue is your Cold front
Red and blue is your stationary front

Explanation:

Explanation:

Cultural Ecosystem Services (CES) are the non-material benefits people obtain from nature. They include recreation, aesthetic enjoyment, physical and mental health benefits and spiritual experiences. They contribute to a sense of place, foster social cohesion and are essential for human health and well-being.

The constant force acting on a volleyball to accelerate it to a speed of 60 m/s for 5 seconds is 75 N. The acceleration of an object is given by the following formula: a = F/m Where, a is acceleration, F is force, and m is mass.

The force required to accelerate an object is given by: F = ma

We can use the above two formulas to find the constant force acting on a volleyball with a mass of 0.25 kg, which is accelerated to a speed of 60 m/s for 5 seconds.

F = maF

= (0.25 kg) x (60 m/s ÷ 5 s)F

= (0.25 kg) x (12 m/s²)F

= 3 N x 25F

= 75 N

Therefore, the constant force acting on the volleyball is 75 N.

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The direction of the apple is 78.5 degrees.

We know that force is that which brings about motion. Force acts on an object when it is stationary and makes it to move or makes a moving object to change direction.

The magnitude and the direction of the vector is regarded as very important when we are trying to solve for a particular vector.

Now  we can see that the force of gravity acts vertically while the force that is exerted by the wind acts horizontally. This implies that we now have  right angled triangle and the direction of the force could be obtained geometrically as;

tan^-1(9.16 N/ 1.87 N)

= 78.5 degrees

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Answer: 5 = straight, constant

Answer: 6 = unbalanced, velocity

Answer: An object is dropped from a height of 75.0 m above ground level.

Explanation: I hoped that helped !