6. In which case do you think the overall vertical force your body felt when it hit the ground was greater—when you bent your knees or when you kept them straight? Explain.

7. A large force can make your bones break, damage the discs in your spine, or other unpleasant things. Why do you think you instinctively bend your knees when landing after jumping?​

Answer: the answer is a

Explanation: I got it correct on test

Answer:

as it is halfway through the fall and it has reached a speed of 19.8 meters per second

Explanation:

Studying energy involves determining the amount of energy an object has. This energy can be kinetic or potential, or it could be a combination of both. Consider a 2-kg bowling ball sits on top of a building that is 40 meters tall. It falls toward the ground. Think about the amounts kinetic energy the bowling ball has as it falls, select the when the ball would have the most kinetic energy from the choices given.

Answer:

They did not understand their situation in life.

Explanation:

Answer:

It's D.)They did not understand their situation in life.

Explanation:

they're young

Answer:

f=ma

f=70N

m1=50kg

m2= 60kg

a1= f/m

a1= 70/50

a1= 1.4N/kg

a2= 70/60

a2=1.17N/kg

Answer:37

Explanation:

Answer:

37

Explanation:

Fahrenheit = ( 9 divided by 5 x Celsius) + 32

= ( 9 divided by 5 x 5)

= 5 + 32

= 37 degrees Celsius

Answer:

An example of a first class lever in the human body is the head and neck during neck extension. The fulcrum (atlanto-occipital joint) is in between the load (front of the skull) and the effort (neck extensor muscles). The muscles are attached to the posterior part of the skull to allow for the greatest effort arm.

Explanation:

hope this helps. Thank you

Venus does not have a moon  in being unusual for our solar system.

Solar energy is an abundant, renewable resource of energy that is generated by the sun's radiation. It can be used to generate electricity, to heat and cool buildings, and to provide hot water. Solar energy is clean, sustainable, and cost-effective, making it an increasingly attractive option for homeowners and businesses alike. Solar energy is captured in photovoltaic (PV) cells, which convert sunlight into electricity. Solar panels can also be used to heat water in solar thermal systems. Additionally, solar energy can be used to heat and cool buildings, through a process called passive solar heating and cooling.

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Venus does not have a moon  in being unusual for our solar system.

Solar energy is an abundant, renewable resource of energy that is generated by the sun's radiation. It can be used to generate electricity, to heat and cool buildings, and to provide hot water.

Solar energy is clean, sustainable, and cost-effective, making it an increasingly attractive option for homeowners and businesses alike. Solar energy is captured in photovoltaic (PV) cells, which convert sunlight into electricity. Solar panels can also be used to heat water in solar thermal systems. Additionally, solar energy can be used to heat and cool buildings, through a process called passive solar heating and cooling.

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a. The electric potential of the proton at the position of the electron is 2.3 x \(10^4\) volts.

b. The electron's potential energy is -2.2 x \(10^{-18}\) joules.

a. The electric potential of the proton at the position of the electron can be calculated using the formula:

V = kQ/r

where V is the electric potential, k is Coulomb's constant (9.0 x \(10^9\) N × m²/C²), Q is the charge of the proton (1.6 x \(10^{-19}\) C), and r is the distance between the proton and electron (0.053 nm = 5.3 x \(10^{-11}\) m).

Plugging in the values, we get:

V = (9.0 x \(10^9\) N × m²/C²) × (1.6 x \(10^{-19}\) C) / (5.3 x \(10^{-11}\) m) = 2.3 x \(10^4\) V

Therefore, the electric potential of the proton at the position of the electron is 2.3 x \(10^4\) volts.

b. The electron's potential energy can be calculated using the formula:

U = -kQq/r

where U is the potential energy, k is Coulomb's constant, Q is the charge of the proton, q is the charge of the electron (-1.6 x \(10^{-19}\) C), and r is the distance between the proton and electron.

Plugging in the values, we get:

U = -(9.0 x \(10^9\) N×m²/C²) × (1.6 x \(10^{-19}\) C) × (-1.6 x \(10^{-19}\) C) / (5.3 x \(10^{-11}\) m) = -2.2 x \(10^{-18}\) J

Therefore, the electron's potential energy is -2.2 x \(10^{-18}\) joules. The negative sign indicates that the electron is bound to the proton and has a lower potential energy than if it were infinitely far away.

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I am a field physicist and I perform QA measurements of various types of X-ray units. Due to recent changes in legal requirements in my country, we have to provide the radiation output value for each unit tube measured in m Gy MA's at 1 meter from focal spot) at filtration of 2,5 mm Al equivalent. a. True

This unfortunately cannot be directly achieved for interventional radiology units, some CTs and occasionally other types of X-ray units. A filter of 2 mm of aluminum will absorb the soft, or less penetrating, radiation. Aluminum is often used as a filter in radiography because it effectively absorbs low-energy, soft X-rays, while allowing more penetrating, higher-energy X-rays to pass through. This helps improve image quality and reduce patient exposure to unnecessary radiation.

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Krypton was soon revealed to have formerly been a planet like Earth, only older by eons and possessing. All the advantageous advancement that entailed, starting in the Superman comic strip (though the downside was the hint that Krypton exploded due mainly to old age).

Superman's ability to defy gravity is also explained by another school of thinking, although with a slight variation. Krypton was a gigantic planet with a gravity so strong that typical humans would be crushed beneath its gravitational pull because it was about 1000 times bigger than Earth.

Therefore, Krypton, which was about 1.5 times the size of Earth and was located 50 light-years from the Sun, orbited the red star Rao.

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False

Virtual image cannot be caught on a screen

The term that best describes why the windows vibrate is "acoustic resonance". When the sound waves from the loud bass speakers hit the windows, they cause the glass to vibrate at the same frequency as the sound waves.

If the frequency of the sound waves matches the natural frequency of the glass, the glass will vibrate with greater amplitude, causing the windows to shake and produce a noticeable effect. This phenomenon is known as acoustic resonance, and it can occur with any object that has a natural frequency of vibration, including glass windows.

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Answer:

Terms in this set (7) Which element forms more compounds than all the other elements combined? Carbon.

Explanation:

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Rate of administration

The rate of administration for the IV solution is approximately 2.778 mL/min.

To calculate the rate of administration in mL/min, we need to convert the total volume of the IV solution (1,000 mL) and the time it takes to administer it (6 hours) into the same unit of time (minutes).

1 hour = 60 minutes

Total volume of IV solution = 1,000 mL

Time for administration = 6 hours = 6 hours × 60 minutes/hour = 360 minutes

Now, we can calculate the rate of administration in mL/min:

Rate = Total volume / Time for administration

Rate = 1,000 mL / 360 minutes

Rate ≈ 2.778 mL/min

Hence, The rate of administration for the IV solution is approximately 2.778 mL/min.

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Answer:

True

Explanation:

Mitosis is the process of cell division that produces two identical daughter cells. Occasionally mutations can occur during DNA replication or the other stages of mitosis. However, cells have mechanisms for DNA repair that can correct these mutations, ensuring the integrity of the genetic material.

Answer:

40sec

Explanation:

Data

Work = 440 J

Power= 11watt

time = ?

Power = work done/time

===> time = work done/power

= 440/11

= 40sec

Copernicus introduced the heliocentric model, placing the Sun at the center instead of the Earth, significantly modifying the geocentric model of the universe.

Copernicus introduced a groundbreaking idea that revolutionized the understanding of the universe: the heliocentric model. In this model, the Sun took the central position, challenging the prevailing geocentric view where Earth was believed to be the center of the universe.

By placing the Sun at the center and suggesting that Earth and other planets revolve around it, Copernicus introduced a new perspective that fundamentally altered the geocentric model.

This concept opened up new possibilities for understanding celestial movements and paved the way for subsequent advancements in astronomy and cosmology. Copernicus's heliocentric model marked a significant shift in our perception of the universe and laid the foundation for future scientific discoveries.

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The current in the loop will be 6.13 A.

The magnetic field is the area in and around a magnet that is subject to the effects of magnetism. We employ the magnetic field as a tool to describe the distribution of the magnetic force in the vicinity and inside something magnetic in nature.

According to the question,

Radius of loop,

r =5.5 cm or,

r  = 0.055 m                          

Earth's magnetic field,  = 0.7G = 0.7 × 10⁻⁴ T

Number of turns, N = 1

We know the relation,

B = µ₀ ×N×I/2r

B = \(B_{e\\}\)

then,

\(B_{e\\}\) = µ₀ ×N×I/2r

By substituting the values,

0.7 × 10⁻⁴ = 4π × 10⁻⁷×1 × I / 2× 0.055

hence,

The current will be

I = 2× 0.055 × 0.7 × 10⁻⁴/ 4π ×10⁻⁷×1

I = 6.13A

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The financial advantage of discontinuing the Beta product line would be a disadvantage of $9,840,000. The financial advantage of buying 100,000 units from the supplier instead of making them would be an advantage of $4,700,000.The financial advantage of buying 75,000 units from the supplier instead of making them would be an advantage of $3,525,000.

To calculate the financial advantage or disadvantage of discontinuing the Beta product line, we need to compare the costs and revenues associated with the current situation and the proposed scenario.

Currently, the company produces and sells 80,000 Betas and 100,000 Alphas. If the Beta product line is discontinued, the sales representatives can increase Alpha sales by 13,000 units.

In the current situation:

Revenue from Beta sales = 80,000 units × $162 = $12,960,000

Revenue from Alpha sales = 100,000 units × $240 = $24,000,000

Total revenue = $12,960,000 + $24,000,000 = $36,960,000

In the proposed scenario:

Increased Alpha sales = 113,000 units × $240 = $27,120,000

Therefore, the financial advantage or disadvantage can be calculated as:

Financial Advantage = Revenue in proposed scenario - Revenue in current situation

Financial Advantage = $27,120,000 - $36,960,000 = -$9,840,000

The financial advantage of discontinuing the Beta product line would be a disadvantage of $9,840,000.

To determine the financial advantage or disadvantage of buying 100,000 units from the supplier instead of making them, we need to compare the costs of production with the purchase cost from the supplier.

Cost of producing 100,000 Alphas:

Direct materials cost = 100,000 units × $35 = $3,500,000

Direct labor cost = 100,000 units × $48 = $4,800,000

Variable manufacturing overhead = 100,000 units × $27 = $2,700,000

Traceable fixed manufacturing overhead = 100,000 units × $35 = $3,500,000

Variable selling expenses = 100,000 units × $32 = $3,200,000

Common fixed expenses = 100,000 units × $30 = $3,000,000

Total cost of producing 100,000 units = $3,500,000 + $4,800,000 + $2,700,000 + $3,500,000 + $3,200,000 + $3,000,000 = $20,700,000

Cost of buying 100,000 units from the supplier = 100,000 units × $160 = $16,000,000

Therefore, the financial advantage or disadvantage can be calculated as:

Financial Advantage = Cost of producing - Cost of buying

Financial Advantage = $20,700,000 - $16,000,000 = $4,700,000

The financial advantage of buying 100,000 units from the supplier instead of making them would be an advantage of $4,700,000.

Similarly, to determine the financial advantage or disadvantage of buying 75,000 units from the supplier instead of making them, we follow the same calculations as in question 9, but with the quantities adjusted accordingly.

Cost of producing 75,000 Alphas:

Direct materials cost = 75,000 units × $35 = $2,625,000

Direct labor cost = 75,000 units × $48 = $3,600,000

Variable manufacturing overhead = 75,000 units × $27 = $2,025,000

Traceable fixed manufacturing overhead = 75,000 units × $35 = $2,625,000

Variable selling expenses = 75,000 units × $32 = $2,400,000

Common fixed expenses = 75,000 units × $30 = $2,250,000

Total cost of producing 75,000 units = $2,625,000 + $3,600,000 + $2,025,000 + $2,625,000 + $2,400,000 + $2,250,000 = $15,525,000

Cost of buying 75,000 units from the supplier = 75,000 units × $160 = $12,000,000

Therefore, the financial advantage or disadvantage can be calculated as:

Financial Advantage = Cost of producing - Cost of buying

Financial Advantage = $15,525,000 - $12,000,000 = $3,525,000

The financial advantage of buying 75,000 units from the supplier instead of making them would be an advantage of $3,525,000.

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In projectile motion we have the following triangle form by the initial velocity:

Assuming that the angle of the launch is "A". From the right triangle that is formed we can use the following trigonometric function:

Now we multiply both sides by "v":

Therefore, in order to determine the y-component of the velocity we need to use the function "sine".

The basic elements for every contract include

1) an offer,

2) acceptance,

3) Awareness

4) with legal capacity, for a legal purpose

A contract is an agreement between two or more parties, to perform a specific job or duty. A contract is usually temporary or of fixed duration and usually governed by a written agreement.

The basic elements every contract should contain are as follows:

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The conditions that must be satisfied for momentum to be conserved in a system are; The total external force acting on a system must be zero. In other words, the net force on the system must be zero.

If there is no net force on the system, the momentum of the system will remain constant with time.The mass of the system must remain constant with time. If the mass of the system is changing with time, the momentum of the system will also change with time. Therefore, it is essential to keep the mass of the system constant.

The collision must be elastic. In an elastic collision, the total kinetic energy of the system is conserved, and the momentum of the system is conserved. In other words, the system behaves as if there were no external forces acting on it. If the collision is not elastic, the total kinetic energy of the system will not be conserved. Instead, some of the kinetic energy will be converted into other forms of energy, such as thermal energy or sound energy.If the above three conditions are satisfied, the momentum of the system will be conserved.

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Answer:

La fuerza que será necesaria aplicar a un cuerpo de 20kg de masa para imprimirle una aceleración a=4m/s² es 80 N.

Explanation:

La segunda ley de Newton, llamada ley fundamental o principio fundamental de la dinámica, plantea que un cuerpo se acelera si se le aplica una fuerza.

De esta manera, esta ley establece que las aceleraciones que experimenta un cuerpo son proporcionales a las fuerzas que recibe. Dicho de otra forma, la aceleración de un cuerpo es proporcional a la fuerza neta que se le aplica. Cuanto mayor es la fuerza que se le aplica a  un objeto con una masa dada, mayor será su aceleración.

La segunda Ley de Newton se expresa matemáticamente como:

F = m*a

Donde:

En este caso:

Reemplazando:

F= 20 kg* 4 m/s²

Resolviendo:

F= 80 N

La fuerza que será necesaria aplicar a un cuerpo de 20kg de masa para imprimirle una aceleración a=4m/s² es 80 N.

Answer:

hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9

The time taken to increase the speed of the train from rest to 78.0 km/h is 6.8 mins

We'll begin by obtaining the impulse of the sytem. This is shown below:

Impulse = final momentum – Initial momentum

Impule = m(v - u)

Impulse = 1.30×10⁷ × (21.67 - 0)

Impulse = 1.30×10⁷ × 21.67

Impulse = 281710000 Ns

Finally, we shall determine the time taken. This is shown below:

Impulse = force × time

281710000 = 6.90×10⁵ × time

Divide both sides by 6.90×10⁵

Average force = 281710000 / 6.90×10⁵

Time = 408.28 s

Divide by 60 to excess in minutes

Time = 408.28 / 60

Time = 6.8 mins

Thus, we can conclude that the time taken is 6.8 mins

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Answer:

The bulb consumes electrical energy at the rate of 500 Watts

1 Watt = 1 Joule/sec  where the joule is the unit of energy

Electric energy is often expressed in kw-hrs

This means that 1 kilowatt of power is used for 1 hour

1 kw-hr = 1000 joules/sec * 3600 sec = 3.6E6 joules of energy

Answer:

the answer is c

Explanation:

The volume of a sphere with radius r is V = (4/3)πr³, and the surface area of the sphere is S = 4πr². T

Given a sphere with radius r, the  answer is: The volume of the sphere is V = (4/3)πr³.

The surface area of the sphere is S = 4πr².

The volume of a sphere is the amount of space inside a sphere. To determine the volume of a sphere, we use the formula:V = (4/3)πr³Where "r" is the radius of the sphere.

So, the volume of the sphere is V = (4/3)πr³.

The surface area of a sphere is the sum of all of its surface areas. To determine the surface area of a sphere, we use the formula:S = 4πr²Where "r" is the radius of the sphere.

So, the surface area of the sphere is S = 4πr².\

In conclusion, the volume of a sphere with radius r is V = (4/3)πr³, and the surface area of the sphere is S = 4πr². The given sphere is a 3-dimensional object that has a circular boundary. To find the volume and surface area, we have used the above formulas, which involves only the radius "r" of the sphere.

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At the mouth of a submarine canyon, you would expect to find a fan-shaped accumulation of sediment called a submarine fan. Submarine canyons are deep,

steep-sided valleys that cut into the seafloor and can extend for many kilometers. They are often formed by underwater erosion from currents, landslides, and other geological processes. At the mouth of the submarine canyon, where it opens up onto the continental shelf, sediment carried by the currents can accumulate and form a fan-shaped deposit. This sediment can come from a variety of sources, including the erosion of the canyon walls, rivers that empty into the ocean, and ocean currents that transport sediment from other areas.

Submarine fans can be quite large and can play an important role in the transport of sediment and nutrients in the deep ocean. They can also be important sites of oil and gas deposits, as well as deep-sea habitats for a variety of marine organisms.

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