DUE IN 3 HOURS! PLEASE HELP AND SOLVE A-E.
For a projectile with initial velocity of 51.5 m/s and angle of elevation equal to 4 degrees.
a) Compute the horizontal velocity of the projectile in m/s.
b) Compute the vertical velocity in m/s.
c) Compute the time of flight for the projectile.
d) Compute the distance downrange.
e) Compute the maximum height reached by the projectile.

Answer:

Direction and magnitude

Explanation:

When a certain gene is known to cause a disease, we refer to it as a single gene disorder or a Mendelian disorder. For example, you may have heard of cystic fibrosis, sickle cell disease, Fragile X syndrome, muscular dystrophy, or Huntington disease. These are all examples of single gene disorders.

Answer: mitochondrial inheritance patterns, autosomal inheritance patterns, mutations.

Explanation:

To find the initial speed of the cork as seen by your friend on the ground, we need to use the Pythagorean theorem to combine the horizontal and vertical components of the cork's velocity. The horizontal component is 6.40 m/s and the vertical component is 2.10 m/s (the same as the speed of the hot air balloon).

The initial speed of the cork is √(6.40² + 2.10²) = 6.72 m/s.
To find the initial direction of the cork as seen by your friend, we need to find the angle between the horizontal and the cork's velocity vector. We can use the inverse tangent function to find this angle:
tan⁻¹(2.10/6.40) = 18.4°

So the initial direction of the cork is 18.4° above the horizontal.
To find the maximum height of the cork above the ground, we need to use the equation for vertical displacement:

We know that the initial vertical position of the cork is 7.10 m, the initial vertical velocity is 2.10 m/s, and the acceleration is -9.8 m/s² (due to gravity). We want to find the time when the vertical velocity is zero, since that will be the maximum height:

So the maximum height of the cork above the ground is 7.55 m.

To find how long the cork remains in the air, we need to find the time when the vertical displacement is zero (when the cork hits the ground):

Using the quadratic formula, we find that the positive root of this equation is t = 1.02 s. So the cork remains in the air for 1.02 seconds.

The Pythagorean theorem is a fundamental theorem in mathematics that states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides (the adjacent and opposite sides).

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We can see here that the diagram that reveals the absorption of photons and production of electrons (photoelectric effect) used in solar PV systems is seen below.

A photon is a fundamental particle or quantum of light.

It is the smallest indivisible unit of electromagnetic radiation, which also includes radio waves, microwaves, X-rays, visible light, ultraviolet light, and infrared radiation. In scientific calculations, photons are represented by the symbol "c" and move at the speed of light in a vacuum while carrying energy.

Wave-particle duality is the idea that photons are both particles and have wave-like characteristics. This means that they can exhibit wave-like properties like interference and diffraction as well as discrete particle behavior, each with a distinct energy and momentum.

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Energy is that which has the ability to cause change in matter.

Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed.

So in simple definition we can say that energy is that which has the ability to cause change in matter.

Based on the given statements we can classify them as;

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Answer:

34 yards or 34 yard line

Explanation:

8 × 3 = 24

24 + 10 = 34

Which statement is accurate in light of the prior query At the base of the ramp, kinetic energy is a) The total amount of energy.

What is the kinetic energy's past?

In their modern scientific senses, the phrases "kinetic energy" and "work" have been around since the middle of the 19th century. Gaspard-Gustave Coriolis, who wrote the work Du Calcul de quand il des Machines in 1829 explaining the math of kinetic energy, is responsible for the earliest understanding of these concepts.

What is a point object's kinetic energy?

According to classical mechanics, the mass and speed of a rigid body or point object, which is so small that its mass may be assumed to exist at a single location, determines their kinetic energy. The mass times the cube of the speed multiplied by half is the kinetic energy.

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The minimum mass required to be placed on the 0.00 cm mark of the meter stick to maintain equilibrium is 0.120 kg.

To maintain equilibrium, the torques acting on the meter stick must balance each other. The torque is given by the formula:

τ = r * F * sin(θ)

where τ is the torque, r is the distance from the pivot point to the point where the force is applied, F is the force applied, and θ is the angle between the force vector and the lever arm.

In this case, the meter stick is in equilibrium when the torques on both sides of the pivot point cancel each other out. The torque due to the weight of the meter stick itself is acting at the center of mass of the meter stick, which is at the 50.0 cm mark.

Let's denote the mass to be placed on the 0.00 cm mark as M. The torque due to the weight of M can be calculated as:

τ_M = r_M * F_M * sin(θ)

where r_M is the distance from the pivot point to the 0.00 cm mark (which is 30.0 cm), F_M is the weight of M, and θ is the angle between the weight vector and the lever arm.

Since the system is in equilibrium, the torques on both sides of the pivot point must be equal:

τ_M = τ_stick

r_M * F_M * sin(θ) = r_stick * F_stick * sin(θ)

Substituting the given values:

30.0 cm * F_M = 20.0 cm * (0.0400 kg * 9.8 m/s^2)

Solving for F_M:

F_M = (20.0 cm / 30.0 cm) * (0.0400 kg * 9.8 m/s^2)

F_M = 0.0264 kg * 9.8 m/s^2

F_M = 0.25872 N

Finally, we can convert the force into mass using the formula:

F = m * g

0.25872 N = M * 9.8 m/s^2

M = 0.0264 kg

Therefore, the minimum mass required to be placed on the 0.00 cm mark of the meter stick to maintain equilibrium is 0.120 kg.

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Answer:

130.34 m/s²

Explanation:

see attachment

hope this helps!

Answer:

b.dance

Explanation:

don't know the explanation

The Big Bang theory is the most widely accepted explanation for the origins of the universe, but it does not necessarily imply that the universe emerged from nothing.

It is possible that new discoveries or insights may shed light on this fundamental question in the future. The universe may have arisen from a pre-existing state or through some other natural process that we do not yet understand.

Instead, the theory describes how the universe underwent a rapid expansion from a very dense and hot state. The conditions and laws of physics that applied during the earliest moments of the universe may not necessarily be the same as those we observe today, and there are many unknowns and uncertainties in our understanding of these early stages.

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Explanation:

Answer:

∆L=aL∆T

Explanation:

that's the answer for your Question

1 mole of nitrogen atoms moving at 35.0 m/s possesses approximately 27.8 joules of energy.

To calculate the energy possessed by 1 mole of nitrogen atoms moving at 35.0 m/s, we need to consider both the kinetic energy and the molecular mass of nitrogen.

The kinetic energy (KE) of an object is given by the equation KE = 1/2 * m * v^2, where m is the mass and v is the velocity.

The molar mass of nitrogen (N₂) is approximately 28.0134 g/mol, which can be converted to kilograms by dividing by Avogadro's number (6.022 × 10^23). This gives us a mass of approximately 4.65 × 10^(-26) kg for one nitrogen atom.

Plugging in the values, we have KE = 1/2 * (4.65 × 10^(-26) kg) * (35.0 m/s)^2.

Evaluating the equation, we find that the kinetic energy possessed by one nitrogen atom is approximately 4.62 × 10^(-23) joules.

Since we are considering 1 mole of nitrogen atoms, we need to multiply this value by Avogadro's number to get the energy possessed by 1 mole. Avogadro's number is 6.022 × 10^23, so the total energy is approximately 2.78 × 10^1 joules, or 27.8 J.

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(a.i) The magnitude of the centripetal acceleration at its edge is 28,197.04 m/s².

(a. ii) In terms of multiple of g, the centripetal acceleration is 2,874.3 g.

(b) The linear speed is determined as 48.96 m/s.

The magnitude of the centripetal acceleration of the workshop grindstone is calculated by applying the following kinematic equation.

a = v²/r = ω²r

where;

The given parameters include;

ω = 5500 rev/min

ω = 5500 rev/min   x   2π rad/rev x  1 min / 60 s

ω = 575.96 rad/s

a = (575.96²) x (0.085)

a = 28,197.04 m/s²

In terms of acceleration due to gravity (g);

a = 28,197.04 m/s² / 9.81 = 2,874.3 g

The linear speed of the grindstone is calculated as follows;

v = ωr

v = 575.96 rad/s  x  0.085 m

v = 48.96 m/s

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Yes, the average hourly earnings in the United States have increased since 1980, both nominal wages and in real terms.

What are nominal wages?

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Answer:a substance that is present at the start of a chemical reaction

Explanation:

Change of state due to cooling is due to the removal of thermal energy from a substance. A substance changes states, such as from a gas to a liquid or from a liquid to a solid, when its particles lose kinetic energy as it loses heat and moves more slowly. Eventually, the particles reorganize into a more ordered form with less energy. The term "solidification" or "freezing" refers to this process.

We can obtain the resultant displacement by geometry as 9.4 m North East

Displacement is the distance covered in a specific direction. It is a vector quantity hence its resultant must be obtained geometrically.

Given that, we can obtain the resultant displacement by the use of the Pythagoras theorem;

R= √(5)^2 + (8)^2

R = 9.4 m North East

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Answer:

32

Explanation:

Up forces and Down forces must be equal if the object is balanced

For this question

down force is weight of the plank

up forces is 14 and 18

14+18=Weight of plank

Answer:

Green

Explanation:

Cyan, Magenta and Yellow are the subtractive primary colors. Each one absorbs one of additive primary colors : Cyan absorbs Red, Magenta absorbs Green and Yellow absorbs Blue. Adding two subtractive primary colors filters together will transmit one of the primary additive colors.

Graham's law states that the rate of diffusion or effusion of two gases is inversely proportional to the square root of their molar masses

For diffusion:-

\(\\ \sf\longmapsto \dfrac{V_x}{V_y}=\sqrt{\dfrac{m_y}{m(x}}\)

For effusion

\(\\ \sf\longmapsto \dfrac{R_x}{R_y}=\sqrt{\dfrac{m_y}{m_x}}\)

Answer:

Asch's experiment showed that about 75% of people were "yielders" who conformed and 25% were "independent" who didn't conform. Asch concludes that people ignored reality and gave an incorrect answer in order to follow the rest of the group.

Energy conservation is the principle that energy is neither created nor destroyed, but can only be converted or transferred. It involves using energy-efficient appliances and transitioning to renewable energy sources to reduce consumption and environmental impact.

Energy conservation refers to the principle that energy cannot be created or destroyed; it can only be converted from one form to another or transferred between systems. This principle is based on the law of conservation of energy, also known as the first law of thermodynamics. In other words, the total amount of energy in a closed system remains constant over time.

One example of energy conservation is the use of energy-efficient appliances in households. By using appliances that are designed to minimize energy waste, such as energy-saving light bulbs, efficient refrigerators, or insulated windows, individuals can reduce their energy consumption and lower their electricity bills. These appliances are designed to convert electrical energy into useful forms, such as light or heat, with minimal energy losses.

Additionally, energy conservation plays a crucial role in sustainable practices and environmental preservation. For instance, reducing reliance on non-renewable energy sources like fossil fuels and transitioning to renewable energy sources such as solar or wind power helps conserve natural resources and reduces greenhouse gas emissions.

In summary, energy conservation is the principle that states energy cannot be created or destroyed but can only be converted or transferred between different forms. By adopting energy-efficient practices and utilizing renewable energy sources, individuals and society can contribute to conserving energy and mitigating environmental impact.

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The question probable may be:

Explain the concept of energy conservation and provide an example of how it applies in real-life situations.

As the book fell through the air and eventually hit the ground, the energies  of the system were converted from one form to another.

Option D is correct.

Energy is described as  the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.

The forms of energy includes:

Chemical energy.

Electrical Energy.

Mechanical Energy.

Thermal energy.

Nuclear energy.

Gravitational Energy.

In conclusion, When the book fell through the air and hit the ground, the potential energy it possessed due to its position above the ground was converted into kinetic energy as it accelerated towards the ground.

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Heat transfer by radiation and convection causes the surface water of the pool to be warm which decreases with depth.

There are two heat transfer process responsible for variation in temperature of water at different depth of a pool, they include;

The surface of the water absorbs heat from the air and the sun. The heat from the sun is transferred to the pool through radiation.

The heat from the air is transferred to the pool through convection.

Thus, these two heat transfer processes  causes the surface water of the pool to be warm which decreases with depth.

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Answer: A dynamo falls under the branch of physics known as electromagnetism or electromagnetic physics. Electromagnetism is the study of the relationship between electricity and magnetism and how they interact with each other.

A dynamo is a device that converts mechanical energy into electrical energy using the principles of electromagnetism. It typically consists of a rotating coil of wire (armature) within a magnetic field. As the coil rotates, the magnetic field induces an electric current in the wire through electromagnetic induction.

The operation of a dynamo involves the application of various electromagnetic principles, such as Faraday's law of electromagnetic induction and Lenz's law. Understanding the behavior and functioning of dynamos requires knowledge of electromagnetism, including the principles of magnetic fields, electric currents, electromagnetic induction, and the relationship between electricity and magnetism.

Therefore, the study and analysis of dynamos and their operation fall within the domain of electromagnetism, a branch of physics.

Explanation:)