a speeding bullet the fastest commercially available rifle bullet claims a muzzle velocity of 4225 ft/s .

Answer:

1. 7.105 kg    2. 69.629 N    3. 7.105 kg    4. 11.368 N

Explanation:

Firstly the main point is that " mass " is independentnof the the place wheather it is no earth or moon or some else place.

So mass is

   W = mg

    27 = m 3.8

     m =7.105 kg

1. Mass on Earth :

     m = 7.105 kg

2. Weight on Earth:

    W=mg

    W=7.105 × 9.8

   W = 69.629 N

3.Mass on Moon:

   m = 7.105 kg

4. Weight on Moon:

    W =mg

    W =7.015 ×1.6

    W= 11.368 N

Answer:

Explanation:

People should care about sexual harassment for many reasons. such as, sexual harassment is a very serious and touchy topic. Sexual harassment should not be tolerated and can ruin many peoples mental health.

Answer:

True

Explanation:

Answer:

the helis speed increased its speed by 35 m/s. Unless you are asking me what was the speed per second. if you were asking me for the speed per second then that would be a different answer

Explanation:

Answer:

7 m/s ^2

Explanation:

a=  60 m/s - 25 m/s over 5 s

a= 35 m/s over  5 s

a= 7 m/s^2

The average speed of the entire walk from the initial point in the north and the final point in the south is 3.6 km/hr or 1 m/s.

Average speed is defined as the product of the total distance traveled by the object and the total taken by the object. It is a scalar quantity and the SI unit of speed is m/s.

From the given,

Total distance traveled = 8 + 3 = 11 km

Total time taken = 2 + 1  = 3 hour

Average speed = Total distance / Total time taken

                          = 11 / 3

                          = 3.6 km/hr

                          = 3.6 × 5 /18 m/s

                         = 1 m/s

Thus, the average speed of the entire walk is 3.6 km/hr or 1 m/s.

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The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.

Velocity is the rate of change of displacement over time.

As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.

So option A is correct.

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When a pulsed wave encounters an obstruction, the wavelength and frequency remain constant.

Representation in mathematics. Traveling sinusoidal waves are frequently mathematically characterized as having a velocity (in the x direction), frequency (f), and wavelength (A) as follows: where y seems to be the value of the wave at any place (x, t), and A is the wave's amplitude.

The space between two successive crests and troughs of light wave is referred to as the wavelength of light. The Greek letter omega (), which stands for it. Consequently, the wavelength is the separation between one wave's crest or trough and the following wave.

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Answer:

D.Elastic energy| Magentic energy

Generational wealth is a kind of asset that passes from one generation to another. It gives freedom to think and live.

The History of Jews in the United States is one of the racial changes that provides insight into the race in America. American Jews of different eras have ethnoracial identities.

Generational wealth is a kind of asset that is passed down from one generation to the other. The first generation enjoys the property of the family and then it passes to their children.

From generational wealth, a person can gain financial freedom to live. By investing in real estate and the stock market, and by creating various income of sources, we can create generational wealth.

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Answer:

white

Explanation:

This experiment causes lines of different colors because the constructive interference depends on the wavelength, so for different wavelength, the position of the maximum will be different.

Now, in diffraction fo a single slit we always have a central maximum (for all the colors)

This means that after the diffraction, we will have that all the colors have a maximum in the center, which will produce white light again, then the color of the central image is white

To find the gauge pressure when taking the inflated tire up the mountain, we need to consider the difference between the atmospheric pressure at the mountain and the initial gauge pressure. Therefore, the gauge pressure read at the mountain will be approximately 23.1 psi.

To determine the gauge pressure of the tire at the higher altitude, we need to consider the difference between the atmospheric pressure and the gauge pressure.

Given:

Gauge pressure at sea level (initial) = 34.5 psi

Atmospheric pressure at higher altitude = 11.4 psi

To calculate the gauge pressure at the higher altitude, we need to find the difference between the atmospheric pressure and the initial gauge pressure:

Gauge pressure at higher altitude = Atmospheric pressure - Initial gauge pressure

Gauge pressure at higher altitude = 11.4 psi - 34.5 psi

Gauge pressure at higher altitude = -23.1 psi

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The horizontal distance travelled by the football is 3.1 m.

The angle of projection of the football is calculated as follows;

tan ( θ ) = Vy / Vx

where;

tan ( θ ) = 5 / 3

tan ( θ ) = 1.667

θ = arc tan (1.667)

θ = 59⁰

The resultant velocity of the ball is calculated as follows;

v = √ (Vx² + Vy²)

v = √ (3² + 5²)

v = 5.83 m/s

The horizontal distance travelled by the football is calculated as follows;

x = v² sin(2θ) /g

where;

x = [ (5.83)² sin(2 x 59) /9.8 ]

x = 3.1 m

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Answer: A.

Explanation: Because it is like when you rub your knees on a rug it is tensional so that would make it a not active force.

The tornado has the angular velocity of 0.568 revolutions per second. It is obtained by using the formula for angular velocity.

The formula for the angular velocity of the tornado can be found by:

ω = v/r

Where

We have a tornado with a diameter of 49.0 m and the linear velocity of wind of 315 km/h. Find the angular velocity in revolutions per second!

Let's find its radius and convert the unit of linear velocity.

The radius of the tornado can be found by dividing its diameter by 2:

r = d/2 = 49.0/2 = 24.5 m

The linear velocity in m/s is

315 km/h = 315 × 1,000 × 1/3,600 m/s

315 km/h = 87.5 m/s

We can rearrange the formula above to solve for angular velocity:

ω = v/r
ω = 87.5 m/s / 24.5 m
ω ≈ 3.57 rad per second

Remember that 1 revolution = 2π radians. So, we get angular velocity in rev per second:
ω = 3.57 rad/s

ω = 3.57/2π

ω ≈ 0.568 rev/s

Hence, the angular velocity of the tornado at its peak is approximately 0.568 revolutions per second.

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Answer:

The lowest electrical voltage would be 100 volts.

Answer:

15 volts would be fatal

Answer:

sunspots

Sunspots are areas in the sun that has a magnetic field is about 2 thousand times stronger than Earth's. Also is much higher than anywhere else on the Sun.

Answer:

Well this would be science... not physics...

Explanation:

1) both are a product of cooling lava/magma

2) Both stones can be caused during volcanic eruptions or clastic flow

3) Both are igneous in family (duh)

4) Intrusive rocks are formed underground from seeping into crevasses and are slow cooling and extrusive rocks are fast or instant cooling and cool above the surface (if differences are needed)

Answer:

1m every 0.28 seconds

Explanation:

she travelled 5 m in 1.4 s, so divide it by itself, 1.4s divided by 5 m gets you 0.28s for 1m

To answer this question, you need to understand the law of conservation of energy. Essentially, the law states that energy cannot be created or destroyed; it is always conserved.

Knowing this law, how can we answer this question? Well, let's look at what the question tells us. We know that Blackie was initially at the top of a refrigerator before rolling over and falling to the ground. At ground level, he only has Kinetic energy when he lands. Since we know that he started at the top of the fridge, we know that Blackie started off with potential gravitational energy.

That would make sense, right? Written out as an equation, it'd be:

\(U_{g}\) = \(K_{E}\)

This follows the law of conservation of energy, as all the potential gravitational energy is converted into Kinetic energy.

Now, we know what energies are converted. What can we do with it? Recall the equation of potential gravitational energy:

\(U_{g}\) = \(F_{g}\)∆H

\(U_{g}\) = mg∆H

Do you see it now? ∆H is the distance that Blackie falls, and since Blackie jumps from the fridge to the ground, ∆H must be the height of the fridge!

Let's start solving for ∆H:

\(U_{g}\) = \(K_{E}\)

Substitute potential gravitational energy with our equation:

mg∆H = \(K_{E}\)

We were given the value of Kinetic Energy:

mg∆H = 90

Isolate ∆H by dividing both sides by mg:

∆H = \(\frac{90}{mg}\)

Input values for 'm' and 'g' (m is the mass of Blackie and g is Earth's acceleration)

∆H = \(\frac{90}{6*9.80}\)

∆H = \(\frac{90}{58.8}\)

∆H = 1.53

The refrigerator is 1.53 meters tall.

And that's it! Let me know if you need me to explain anything I did here.

- breezyツ

The small electric devices that, like vacuum tubes, could receive and amplify radio signals were known as transistors.

Transistors revolutionized the field of electronics by replacing vacuum tubes, which were bulky, fragile, and consumed a lot of power. The invention of transistors, which was made by John Bardeen, Walter Brattain, and William Shockley at Bell Labs in 1947, paved the way for the development of smaller, more efficient electronic devices, such as radios, televisions, and computers.

Transistors are made of semiconductor materials, such as silicon or germanium, and they work by controlling the flow of electrons through a material. They have three main components: the emitter, the base, and the collector. When a small current is applied to the base of a transistor, it controls the flow of a larger current between the emitter and the collector, allowing the transistor to amplify signals.

Transistors are now found in nearly every electronic device, from smartphones and laptops to cars and medical equipment. They have enabled the development of smaller, more efficient, and more powerful devices that have transformed our daily lives.

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The following which is true, according to newton’s laws of motion with friction being ignored is that none of the above is true, according to the third law and is therefore denoted as option E.

This law was coined by Isaac Newton and it states that for every action (force) in nature there is an equal and opposite reaction.

A semitrailer truck crashing all the way through a wall and since the wall collapses, the wall sustains a greater force than the truck does which doesn't depict the third law of motion as the force are meant to be equal.

They pushing off against each other and fly apart and Sam flying off with the greater acceleration also disobeys the third law due to the action and reaction not being equal.

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The options are:

A. A sports utility vehicle (SUV) hits a stationary motorcycle. Since it is stationary, the motorcycle sustains a greater force than the SUV does.

B. A semitrailer truck crashes all the way through a wall. Since the wall collapses, the wall sustains a greater force than the truck does.

C. Sam (18 years old) and his sister (9 years old) go ice skating. They push off against each other and fly apart. Sam flies off with the greater acceleration.

D. Two astronauts on a space walk are throwing a ball back and forth between each other. In this game of catch the distance between them remains constant.

E. None of the above is true, according to the third law.

Answer:

According to the only context given, the correct answer is induction.

Answer:

Current, I = 20 Amperes.

Explanation:

Given the following data;

Voltage = 40 V

Resistance = 2 Ohms

To find current flowing through the resistor;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

\( V = IR\)

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Making current (I) the subject of formula, we have;

\( I = \frac {V}{R} \)

Substituting into the formula, we have;

\( I = \frac {40}{2} \)

Current, I = 20 Amperes.

Answer:

hope this help pls give me brainless

The speed of the volleyball with a mass of 0.28 kg and height of 12 m will be 15.336 m/s.

Speed is the rate of change of distance of an object with respect to time. Speed is a scalar quantity as it has only magnitude and no direction. The SI unit of speed is meter per second (m/s).

PE = KE

Potential Energy = Kinetic energy

mgh = 1/2 mv²

where, m is the mass of object,

g is the acceleration due to gravity,

h is the height of the object,

v is the speed of the object

gh = 1/2v²

2gh = v²

v = \(\sqrt{2gh}\)

v = \(\sqrt{2(9.8)(12)}\)

v = \(\sqrt{235.2}\)

v = 15.336 m/s

Therefore, the speed of the volleyball will be 15.336 m/s.

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Answer:

8.37757

Explanation:

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The acceleration due to gravity of an object dropped on planet X is 8 m/s²

From the question given above, the following data were obtained:

Height (H) = 64 m

Time (t) = 4 s

Acceleration due to gravity (g) on planet X =.?

The acceleration due to gravity on planet X can be obtained as follow:

H = ½gt²

64 = ½ × g × 4²

64 = ½ × g × 16

64 = g × 8

Divide both side by 8

g = 64 / 8

Therefore, the acceleration due to gravity on planet X is 8 m/s²

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The power plant's production cost function includes investment, O&M costs, and fuel expenses determined by heat rate. It exhibits decreasing returns to scale. The bid price should consider the marginal cost.

a) The production cost function of the power plant is given by:

Production Cost = Annuitized Investment Cost + Fixed O&M Costs + Variable O&M Costs + Fuel Costs

The annuitized investment cost is $150/kW-yr, which represents the annualized cost of the power plant's capital investment per kilowatt of capacity. The fixed O&M costs are $22/kW-yr, which are the annual fixed operational and maintenance costs per kilowatt of capacity. The variable O&M costs are ¢2.5/kWh, representing the variable operational and maintenance costs per kilowatt-hour of electricity produced. The fuel costs are determined by the heat rate and the cost of fuel.

b) The returns to scale exhibited by this power plant's production function can be determined by analyzing the cost structure. If the total cost increases proportionally less than the increase in output, it exhibits decreasing returns to scale.

In this case, the fixed O&M costs and annuitized investment costs remain constant regardless of the scale of production, while the variable O&M costs and fuel costs increase with the amount of electricity produced. Since the fixed costs do not change, the marginal cost per unit decreases as production increases, indicating decreasing returns to scale.

c) To determine the bid price in the wholesale electricity market, the power plant should consider its marginal cost. The marginal cost is the additional cost incurred to produce one more unit of electricity.

In this case, the marginal cost is given by the sum of the variable O&M costs (¢2.5/kWh) and the fuel costs, which can be calculated using the heat rate (6,280 Btu/kWh) and the cost of fuel ($3/MMBtu). The bid should be set at or slightly above the marginal cost per kilowatt-hour or per megawatt-hour, depending on the market conventions, to ensure the power plant covers its costs and remains competitive as a price taker.

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ATP (Adenosine triphosphate)serves as an energy source for cellular processes and drives chemical reactions, metabolism regulation, active transport, and signaling. Its hydrolysis releases energy essential for muscle contraction, synthesis, and nerve impulse transmission, while ATP's phosphate group transfers activate key reactions and regulate metabolism.

Here are some key reasons why ATP is crucial for cellular functioning:

1. Energy Source: ATP provides the energy needed for various cellular processes. When ATP is hydrolyzed, meaning it loses one of its phosphate groups, it releases energy that can be used by the cell to perform work. This energy powers essential cellular activities like muscle contraction, active transport of molecules across cell membranes, synthesis of macromolecules, and nerve impulse transmission.

2. Chemical Reactions: Many biochemical reactions in cells require energy to proceed. ATP acts as an energy source by providing the necessary phosphate group that can be transferred to other molecules, activating them and allowing chemical reactions to occur. This process, called phosphorylation, drives reactions such as protein synthesis, DNA replication, and cellular respiration.

3. Metabolism Regulation: ATP plays a crucial role in regulating cellular metabolism. It acts as an allosteric regulator, meaning it can bind to certain enzymes and alter their activity. By binding to enzymes involved in metabolic pathways, ATP helps coordinate and control the flow of energy and metabolites through these pathways, ensuring efficient energy utilization and maintaining metabolic homeostasis.

4. Active Transport: ATP powers active transport mechanisms that move ions and molecules against their concentration gradients across cell membranes. These transport processes are vital for maintaining ion balance, nutrient uptake, and removal of waste products. ATP provides the necessary energy to drive protein pumps and transporters involved in active transport.

5. Signaling and Communication: ATP is involved in cell signaling and communication. It can be released extracellularly as a signaling molecule, particularly in processes like neurotransmission and cell-to-cell communication. ATP and its breakdown products serve as chemical messengers that can trigger various cellular responses, including neurotransmitter release, immune responses, and cell differentiation.

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the machine shown in the diagram is called a tramp.

the height of the tramp is 5 and the length is 12

Answer:

Incline plane

5/12 rise/run

Explanation:

Incline plane

5/12 rise/run