(a) is it possible for a path to also be a circuit? explain your reasoning. (b) is it possible for a path to also be a cycle? explain your reasoning.

Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

Answer:

\(\boxed {\boxed {\sf D. \ 6.02*10^{23} \ atoms}}\)

Explanation:

One mole of a substance contains the same amount of representative particles. These particles can be atoms, molecules, ions, or formula units. In this case, the particles are atoms of titanium.

Regardless of the particles, there will always be 6.02*10²³ (also known as Avogadro's Number) particles in one mole of a substance.

Therefore, the best answer for 1 mole of titanium is D. 6.02*10²³ atoms.

Answer:

D) 6.02 x 1023

Explanation:

A.P.E.X

The final volume of water in the container after increasing the temperature is 203.8 m³.

From the given,

The initial volume of water (Vο) = 200 cm³

Initial temperature = 4°C = 4+273 = 277K

Final temperature = 95°C = 273+95 = 368 K

Volume expansion co-efficient = 210×10⁻⁶(°C)⁻¹

Final volume =?

β = 1/Vο (ΔV/ΔT),  β represents the volume expansion coefficient, ΔV change in volume, ΔT is the change in temperature, and Vο is the initial volume.

ΔV = β×Vο×ΔT

     = 210×10⁻⁶×200×(368-277)

    =  210×10⁻⁶×200×91

ΔV = 3.83 m³

ΔV = final volume - initial volume

final volume = ΔV + 200

                    = 3.82 +200

                    = 203.82 m³

Final volume = 203.82 m³.

Thus, the final volume of the water is 203.82 m³.

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Answer: Density=0.8

Explanation: It's 0.8 because you are supposed to do m/v=d and that would be 40/50=0.8

Answer:

The density is 0.8 g/cc.

Explanation:

40g/50mL=0.8 g/cc.

0.8 g/cc is equal to 0.8 g/mL.

The specific heat of the substance is 0.804 J/g*K.

To solve for the specific heat of the substance, we can use the formula:

q = mCΔT

where q is the amount of heat absorbed, m is the mass of the substance, C is the specific heat of the substance, and ΔT is the change in temperature.

Plugging in the given values:

q = 2593 J
m = 38.33 g
ΔT = 167.2 - 29.2 = 138 K

Solving for C:

C = q / (mΔT)
C = 2593 J / (38.33 g * 138 K)
C = 0.804 J/g*K
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Answer:β^+

Explanation: it is beta + , also positron emission radiation

Answer:

0 +1 e or β+

Explanation:

A P E X

The two components of the equation for the free energy stored in the proton gradient are called as concentration gradient and Voltage difference ( Electric potential )

The equation for the free energy stored in the proton gradient is

ΔG = 2.3 RTΔpH + FΔψ

ΔpH = H+ concentration gradient

Δψ = Voltage difference / Electric potential

The significance of concentration gradient and Voltage difference ( Electric potential ) being a separate entity in the equation is to provide energy and independent contribution to ATP synthesis.

Therefore, the two components of the equation for the free energy stored in the proton gradient are called as concentration gradient and Voltage difference ( Electric potential )

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Answer:

To be better at something

Explanation:

I have Accelerated at cooking

Answer:

Acceleration means to speed up

Explanation:

Given,

Density of ice =917kg/m³

To Find,

Fraction of the volume of ice.

Solution,

We know, density of ice = 917 kg/ m³

Also density of fresh water = 1000 kg/m³

Lets assume v is volume of ice above water and V be total volume.

Then volume displaced in water= V-v,

By using law of floatation,

V×917×g = (V-v) ×1000×g

⇒V-v/V=917/1000

⇒1-v/V=917/1000

⇒v/V=1-917/1000

⇒v/V=83/1000

   =0.083

Hence, fractional value is 0.083.

Physical fitness can help protect against chronic disease, which means that engaging in regular physical activity can reduce the risk of developing chronic diseases such as heart disease, diabetes, and some forms of cancer.

Physicаl аctivity hаs significаnt heаlth benefits for heаrts, bodies аnd minds. It contributes to preventing аnd mаnаging noncommunicаble diseаses such аs cаrdiovаsculаr diseаses, cаncer аnd diаbetes. It also reduces symptoms of depression аnd аnxiety. Physicаl fitness enhаnces thinking, leаrning, аnd judgment skills; ensures heаlthy growth аnd development in young people; and improves overаll well-being.

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Answer:

a. 15,000J

b. .76m

Explanation:

KE = (1/2)m*v²

KE = .5*1000kg*30m/s

KE = 15000J

PE = m*g*h

7500J = 1000kg*9.81m/s²*h

7500J = 9810*h

h = .76m

Answer:

He exceeded the speed limit

Explanation:

\({ \tt{ \frac{38 \times {10}^{8} \: m }{1 \: s} }} = { \tt{ \frac{ \frac{1}{1609} \: mi}{ \frac{1}{3600} \: hr} }} \\ \\ { \tt{ = ( \frac{1}{1609} \times 38 \times {10}^{8} ) \times (3600)}} \\ \\ = 8.5 \times {10}^{9 } \: mih {}^{ - 1} \)

With 4.3 m/s velocity, is the cheetah running.

velocity= distance/time

distance=27.6 m

time=6.3 s

velocity=27.6 m/6.3 s

velocity=4.3 m/s

A vector number known as velocity describes "the pace at which an item changes its location." Imagine a person moving quickly, taking one stride ahead, one step back, and then beginning from the same place each time. A vector quantity is velocity. As a result, velocity is aware of direction. One must consider direction while calculating an object's velocity. Saying that an item has a velocity of 55 miles per hour is insufficient. The direction must be included in order to adequately characterize the object's velocity. Simply said, the velocity vector's direction corresponds to the motion of an item.

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Answer:

\(5.8\; {\rm kg\cdot m \cdot s^{-1}}\).

Explanation:

If the mass of an object is \(m\) and the velocity of that object is \(v\), the linear momentum of that object would be \(m\, v\).

Assume that the initial velocity of the mass is positive (\(6.0\; {\rm m\cdot s^{-1}}\).) However, the direction of the velocity is reversed after the impact. Thus, the sign of the new velocity of the object would be negative- the opposite of that of the initial velocity. The new velocity would be \((-4.0\; {\rm m\cdot s^{-1}})\).

Thus, the change in the velocity of the mass would be:

\(\begin{aligned}& (\text{Change in Velocity}) \\ =\; & (\text{Final Velocity}) - (\text{Initial Velocity}) \\ =\; & (-4.0\; {\rm m\cdot s^{-1}}) - (6.0\; {\rm m\cdot s^{-1}}) \\ =\; & (-10\; {\rm m\cdot s^{-1})\end{aligned}\).

The change in the linear momentum of the mass would be:

\(\begin{aligned} & \text{change in momentum} \\ =\; & (\text{mass}) \times (\text{change in velocity}) \\ =\; & 0.58\; {\rm kg} \times (-10\; {\rm m\cdot s^{-1}}) \\ =\; & (-5.8\; {\rm kg \cdot m \cdot s^{-1}})\end{aligned}\).

Thus, the magnitude of the change of the linear momentum would be \(5.8\; {\rm kg \cdot m \cdot s^{-1}}\).

The equation that most accurately represents the model of cellular respiration is: C6H12O6 (sugar) + 6O2 (oxygen) = 6CO2 (carbon dioxide) + 6H2O (water) + energy.

Cellular respiration is the process whereby living organisms obtain energy by breaking down food molecules in their cells.

The process of cellular respiration breaks down sugar molecules (glucose) in the presence of oxygen to produce carbon dioxide and water as products, as well as energy in form of ATP.

Therefore, the equation that most accurately represents the model of cellular respiration is: C6H12O6 (sugar) + 6O2 (oxygen) = 6CO2 (carbon dioxide) + 6H2O (water) + energy.

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Answer:True

The number of molecules hitting the unit surface per unit time increasethe gas pressure increases.

Answer:

A unit vector is (D) a vector with a magnitude of one

Explanation:

Unit Vector Information:

A unit vector is a vector with a magnitude of one. Vectors of different magnitudes can be scaled off the unit vector. Also, they can be used in two, three, or more dimensions.

Other Answers:

A. a vector with all three directions or  dimensions that are given

This is the definition of a 3D vector. This is a line segment in three-dimensional space running from point A (tail) to point B (head). Each vector has a magnitude (or length) and direction.

B. a vector with only one dimension

This is the definition of an one-dimensional vector. This type of vector has no dimension, but a number of components, therefore it behaves like a real number.

C. a vector that has an x and y components that  are equal in magnitude

(Unsure, I believe this would be defined as an equal vector. Correct me if I'm wrong and I will edit it.)

I hope this helps!

Your motorbike breaks down five Km from your home. You use 400 N force for the entire 60 minutes that it takes you to push this motorbike home. The total power is 555.55 Watts.

The quantity of energy transferred or transformed per unit of time is known as power. The watt, or one joule per second, is the unit of power in the International System of Units. A scalar quantity is power.

Power is related to other factors; for instance, the power required to move a ground vehicle is equal to the product of the vehicle's velocity, traction force on its wheels, and aerodynamic drag. A motor's output power is calculated by multiplying its torque output by the angular velocity of its output shaft. The power lost by an electrical component in a circuit is also a function of the voltage across the component and the current that flows through it.

P =\(\frac{W}{t}\)

where W is work done and t is time.

t= 60min= 60 × 60= 3600 sec

W = F × S

where

F is force and S is displacement

Substituting the values,

P = 555.55 W

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The flash unit in a camera uses a 6.0 V battery to charge a capacitor. The capacitor is then discharged through a flashlamp.

To calculate the energy dissipated in the flashlamp, we can use the formula  Energy = Power * Time.

Given that the power dissipated is 10 W and the discharge time is 10 μs, we can substitute these values into the formula

Energy = 10 W * 10 μs

Therefore, the energy dissipated in the flashlamp is 0.00001 Joules. that the energy dissipated in the flashlamp is 0.00001 Joules. The flash unit in a camera charges a capacitor using a 6.0 V battery. This charged capacitor is then discharged through a flashlamp, which takes 10 microseconds (μs). The average power dissipated in the flashlamp during this discharge is 10 W. By using the formula Energy = Power * Time, we can calculate the energy dissipated in the flashlamp. Converting the time from microseconds to seconds, we find that the energy dissipated is 0.00001 Joules.

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The acceleration of the two blocks is approximately \(0.67 m/s^2.\)

Since the two blocks are in contact and moving together, they are considered as a single system.

The net force on the system is the force applied to the 1.0 kg block minus the force of friction between the two blocks. According to Newton's second law, the net force is equal to the mass of the system times its acceleration:

Net force = (mass of system) x (acceleration)

We can set up an equation for the net force as follows:

Net force = F - f

where F is the applied force, and f is the force of friction between the two blocks. Since the table is assumed to be frictionless, there is no frictional force, so f = 0.

Therefore, the net force is simply equal to the applied force F:

Net force = F

We can now substitute the values given in the problem:

F = 2.0 N (the force applied to the 1.0 kg block)

m = 1.0 kg + 2.0 kg = 3.0 kg (the total mass of the system)

Using the equation for the net force, we can find the acceleration of the system:

Net force = (mass of system) x (acceleration)

F = m x a

a = F / m

a = 2.0 N / 3.0 kg

\(a =0.67 m/s^2\)

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A medicine is prescribed for a baby that weighs 8.5 pounds. the dose is 5.0 mg per kilogram of body weight. 19.5 mg of medicine should be given to this baby

The unitary method is generally a way of finding out the solution of a problem by initially finding out the value of a single unit, and then finding out the essential value by multiplying the single unit value.

1 Pound = 0.45 kg

8.5 pounds = 3.9 kg

Since , the dose should be = 5 mg per kilogram

for 1 kg = 5 mg dose is required

for 3.9 kg = 5 * 3.9 = 19.5 mg dose is required

19.5 mg of medicine should be given to this baby

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Answer:

E) All of the above

Explanation:

PLEASE MARK ME AS BRAINLIEST

Answer:

I believe it's number 2 not for sure.

Explanation:

hope this helps you

The total mass of the objects is 5.05 kg, m₁= 3.35 Kg, m₂= 1.67 Kg is the mass of each.

What is mass ?

Determining inertia, a non-changeable feature of all objects. The main characteristic of a body of matter is the resistance it offers to a force-induced change in its speed or location.

What is magnitude ?

In simple terms, magnitude is "distance or quantity." It shows the size or motion of an object, either in terms of absolute size or relative motion. It is a method for describing a phenomenon's size or range. In physics, the term magnitude is frequently used to describe a length or size.

The concept required to solve this problem is the expression for gravitational force.

Initially, obtain the quadratic expression for the mass of the object by using the expression for gravitational force.

Finally, calculate the mass of the each object using the expression for the mass of the object.

The gravitational force is given by, F= G m₁m₂/ r²

Here, G is the universal gravitational constant,

r is the distance between the two objects and

m₁m₂ are the masses of the two objects.

The expression for the mass of the object is given as follows:

(5.02 kg - m₁) for m₂ in the equation F= G m₁m₂/ r²

G =  m₁ (5.02 kg - m₁) / r²

Fr² / G = m₁ (5.02 kg - m₁)

m²₁= - (5.02 kg - m₁) + Fr² / G = 0

The sum of the two masses is given by,

m₁+m₂= 5.02 kg

m₂= 5.02 kg-m₁

Calculate the mass of the each object as follows:

Consider force as 9.80 * 10 ⁻⁹ N

m₁= 3.35 Kg

m₂= 1.67 Kg

Therefore, the total mass of the objects is 5.05 kg, m₁= 3.35 Kg, m₂= 1.67 Kg is the mass of each.

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Answer is the hind brain

The brainstem is located under the forebrain and midbrain. Therefore option D is correct.

The brainstem is located under both the forebrain and midbrain. It is a vital component of the central nervous system that connects the brain to the spinal cord and controls many essential functions such as breathing, heart rate, and digestion.

It consists of three main regions: the medulla oblongata, pons, and midbrain. The forebrain, midbrain, and hindbrain together constitute the major divisions of the brain.

The hindbrain is positioned below the midbrain and includes structures like the cerebellum, pons, and medulla oblongata.

The brainstem, specifically its lower regions, is responsible for relaying information between the brain and the rest of the body while regulating critical bodily functions.

Therefore option D is correct.

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Answer:

To find the specific gravity of the fluid, we need to compare its density to that of water.

First, we need to find the mass of the water in the bottle:

Mass of water = Mass of filled bottle - Mass of empty bottle

Mass of water = 84.70 g - 10.00 g

Mass of water = 74.70 g

Next, we can calculate the volume of water in the bottle using the density of water, which is 1 g/mL:

Volume of water = Mass of water / Density of water

Volume of water = 74.70 g / 1 g/mL

Volume of water = 74.70 mL

Now we can use the mass of the bottle when it is filled with the other fluid to find the mass of the fluid:

Mass of fluid = Mass of filled bottle - Mass of water - Mass of empty bottle

Mass of fluid = 70.00 g - 74.70 g - 10.00 g

Mass of fluid = -14.70 g

This result is negative, which means that the mass of the fluid is less than the mass of the water. This could be due to a variety of factors, such as air bubbles trapped in the fluid or an error in the measurements.

Assuming that the mass of the fluid should have been greater than the mass of the water, we can still calculate the specific gravity using the volume of water we calculated earlier:

Density of fluid = Mass of fluid / Volume of water

Density of fluid = (70.00 g - 10.00 g - 74.70 g) / 74.70 mL

Density of fluid = -14.70 g / 74.70 mL

Density of fluid = -0.196 g/mL

Again, this result is negative and therefore not physically meaningful. It is possible that there was an error in the measurements or that the assumption about the mass of the fluid being greater than the mass of the water was incorrect. Without additional information, we cannot calculate the specific gravity of the fluid.

Explanation:

Answer:

C. Try an element in the same group as lithium.

Explanation:

Answer:

The answer is C.

Explanation:

I'm took the test on it

Answer:

196000000 J

Explanation:

Potential Energy: This can be defined as the energy of a body due to its position in the gravitational field.

From the question,

P.E = mgh.................. Equation 1

Where P.E = potential Energy, m = mass of the water, h = height, g = acceleration due to gravity.

Given: m = 100 tonnes = (100×1000) = 100000 kg, h = 200 m

Constant: g = 9.8 m/s²

Substitute into equation 1

P.E = 100000(200)(9.8)

P.E = 196000000 J.

Note: When a object falls through a height he losses its potential energy.

Hence the potential energy lost = 196000000 J = 196 MJ.