at which two positions will an observer in the state of michigan experience approximately 12 hours of daylight during one rotation of earth?

Answer:

Explanation:

Using the conservation of law of momentum which states that the sum of momentum of bodies before collision is equal to the sum of the bodies after collision.

Momentum = Mass (M) * Velocity(V)

BEFORE COLLISION

Momentum of 0.25kg body moving at 1.0m/s = 0.25*1 = 0.25kgm/s

Momentum of 0.15kg body moving at 0.0m/s(body at rest) = 0kgm/s

AFTER COLLISION

Momentum of 0.25kg body moving at x m/s = 0.25* x= 0.25x kgm/s

x is the final velocity of the 0.25kg ball

Momentum of 0.15kg body moving at 0.75m/s(body at rest) =

0.15 * 0.75kgm/s = 0.1125 kgm/s

Using the law of conservation of momentum;

0.25+0 = 0.25x + 0.1125

0.25x = 0.25-0.1125

0.25x = 0.1375

x = 0.1375/0.25

x = 0.55m/s

Since the 0.15 kg ball moves off to the right after collision, the 0.25 kg ball will move at 0.55 m/s towards the right

A ball weighing 10 kg rolls down a frictionless incline with a 50 degree angle to the horizontal. If the balls initial velocity was 0 m/s.

Hence, the correct option is D.

The mechanical energy of the system, which includes both kinetic and potential energy, is conserved in the absence of external forces like friction.

In this case, there is no friction, so the mechanical energy of the system does not change.

Hence, the correct option is D.

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The tension in the rope is 173.55 N.

Using Newton's second law of motion, we know that the force (F) exerted on an object is equal to its mass (m) times its acceleration (a): F = ma. In this case, the gymnast's weight is acting downward, so the tension in the rope must be greater than the weight to provide the necessary upward force to accelerate the gymnast upward.

Thus, we can calculate the tension in the rope as follows:

Tension - Weight = ma

T - mg = ma

where T is the tension in the rope, m is the mass of the gymnast, g is the acceleration due to gravity (9.8 m/s^2), and a is the acceleration of the gymnast upward.

T - (63 kg)(9.8 m/s^2) = (63 kg)(2.5 m/s^2)

T = (63 kg)(9.8 m/s^2 + 2.5 m/s^2) = 173.55 N

Therefore, the tension in the rope is 173.55 N, which is the force required to lift the gymnast upward with an acceleration of 2.5 m/s^2.

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Answer: That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity. Newton was the first to theorize that a projectile launched with sufficient speed would actually orbit the earth.

Explanation: Because Earth-orbiting objects follow elliptical paths around Earth and not a straight line, forces cannot, by definition, be balanced. Force is directional. It is a push or a pull in a particular direction.

Answer:

I'm pretty sure the answer is around 9.2 seconds

Explanation:

The statement about the battery which is correct is; a new substance is formed as the battery is used.

Lithium ion batteries have become part of most modern devices such as cell phone, laptop computers and other digital devices.

It shorter time of recharge and good battery life has continued to make it a top choice in the electronics industry.

The equation that describes the chemistry of lithium ion battery is;

LiC6 + CoO2  ⇄ C6 + LiCoO2

The reaction goes towards right hand side when the battery is in use and towards the left hand side when that battery is recharging.

Hence, from the equation, we can see that a new substance, LiCoO2 is formed when the battery is in use.

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Answer:

The anwser is d

Explanation

I did the test

The pH of the solution is approximately 2.919.

To determine the pH of the solution, we need to consider the dissociation of HF (hydrofluoric acid) and the equilibrium between HF and its conjugate base, F^-.

HF can dissociate according to the equation: HF ⇌ H^+ + F^-

Given that the solution is 0.25 M in HF and 0.15 M in F^-, we can assume that HF is the predominant species and the concentration of F^- is relatively low. Therefore, we can consider HF as the acid and F^- as the conjugate base.

The pKa of HF is given as 3.14. The pKa is a measure of the acid's strength, and it is related to the equilibrium constant for the dissociation reaction. In this case, pKa = -log(Ka), where Ka is the acid dissociation constant.

Using the Henderson-Hasselbalch equation, pH = pKa + log([A-]/[HA]), we can calculate the pH of the solution.

pH = 3.14 + log(0.15/0.25) ≈ 3.14 + (-0.221) ≈ 2.919

Therefore, the pH of the solution is approximately 2.919.

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Answer:

it would say ask and see the tutor

Answer:

You type out your question and it should ask you where you want to post it. You choices are tutor or community. Choose community.

Explanation:

I just did it and it worked. Good luck

Answer:

We can use Hooke's law, which states that the extension of a spring is proportional to the force applied to it, as long as the elastic limit is not reached. Mathematically, this can be expressed as:

F = kx

where F is the force applied to the spring, x is the extension of the spring, and k is the spring constant.

We can use the given information to find the spring constant k:

50N = k(25cm - 20cm)

50N = 5cm k

k = 10N/cm

Now we can use Hooke's law to find the extension of the spring when a force of 100N is applied:

100N = (10N/cm)x

x = 10cm

Therefore, the length of the spring when stretched by 100N is:

20cm + 10cm = 30cm

The behavior of springs is governed by Hooke's Law, which states that the force required to stretch or compress a spring by some distance is proportional to that distance. Mathematically, this is expressed as:

\($$F = kx$$\)

where:

- \(\(F\)\) is the force applied,

- \(\(k\)\) is the spring constant, and

- \(\(x\)\) is the displacement from the spring's original position.

Given that a 50N force stretches the spring from 20cm to 25cm (a 5cm or 0.05m stretch), we can first calculate the spring constant \(\(k\)\). Then, we can use this spring constant to find the displacement when a 100N force is applied.

Let's calculate the spring constant \(\(k\)\) first.

It seems there was a misunderstanding in the interpretation of the equation. The goal is to solve for \(\(k\)\), the spring constant, not \(\(N\)\), the force. Let's correct this and solve for \(\(k\)\) in the equation \(\(50N = k * 0.05m\)\).

The spring constant \(\(k\)\) is found to be \(\(1000 \, \text{N/m}\)\).

Now, let's use this spring constant to find the displacement when a 100N force is applied. We rearrange Hooke's Law to solve for \(\(x\)\):

\($$x = \frac{F}{k}$$\)

Substituting \(\(F = 100N\)\) and \(\(k = 1000N/m\)\), we can find the displacement \(\(x\)\).

The displacement \(\(x\)\) when a 100N force is applied is 0.1 meters or 10 cm.

Remember, this displacement is the amount the spring stretches from its original length due to the applied force. So, to find the total length of the spring when a 100N force is applied, we add this displacement to the original length of the spring (20 cm).

Let's calculate the total length of the spring.

The total length of the spring when a 100N force is applied will be 30 cm, assuming that the elastic limit is not reached.

Answer:

A or B(the answers)

Explanation:

they seem like the most right

Answer:

I'm pretty sure it's b

Explanation:

1 g/cm3 Is the Density of Water g cm3 .

What is volume ?

Volume is a measure of the amount of space occupied by an object or a substance. It is a scalar quantity and is expressed in units such as cubic meters, cubic centimeters, liters, or gallons. Volume is an important physical quantity that is used to describe the size of objects and the amount of a substance contained within a container.

In mathematics, volume is often used to describe the amount of space enclosed by a three-dimensional object, such as a cube, sphere, or cylinder. The formula for the volume of a three-dimensional object depends on its shape, but common formulas include the volume of a cube (V = s^3), the volume of a sphere (V = 4/3 π r^3), and the volume of a cylinder (V = π r^2 h).

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The wavelengths of solar energy that are absorbed by plants in photosynthesis are 700 nm to 400 nm.

Solar energy is the most promising, safest, cleanest, and most reliable source of energy.

It is obtained directly from the sun and is converted into thermal energy. Solar energy plays a crucial role in the photosynthesis process.

Through photosynthesis, plants transform solar energy into a form of chemical energy that can be used by all living organisms.

During photosynthesis, thermal energy is used to produce glucose and oxygen.

To sum up, visible light is a form of sunlight that is used for photosynthesis having wavelengths between 700 nm to 400 nm.

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The physical quantity that is neglected when practicing tailgating is :

Tailgating is the act of driving or following a vehicle very closely and this can be very dangerous as well, during this act the distance between the vehicles is been neglected by the driver.

Distance is the difference in position of an object with time in respect to another object. ( i.e It is a scalar quantity ).

Hence we can conclude that the physical quantity that is neglected when practicing tailgating is Distance.

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The two main reasons for the differences between Mountains and Polar regions are their location and climate.

First, mountains are typically found in a variety of locations across the world, while polar regions are only found at the North and South Poles. This means that mountains can be found in a wide range of environments and climates, while polar regions are typically only found in extremely cold and icy conditions.

Second, the climate of mountains and polar regions is also very different. Mountains typically have cooler and more varied climates due to their higher altitude, while polar regions have a consistently cold and icy climate. This means that mountains can support a wider variety of plants and animals, while polar regions have a more limited ecosystem.

Overall, the main differences between mountains and polar regions are their location and climate, which greatly influence the types of plants and animals that can be found in these areas.

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Given -  v 1 =20m/s,r=25m,μ=0.75,

as the car is entering an unbanked road so total required centripetal force must be provided by frictional force only, to be in its lane,

 mv 22/r=μmg

where v 2= velocity of the car on a curve,  

 therefore v  2 =μrg or v 2 = μrg or v 2= 0.75×25×9.8 =13.6m/s

therefore change in velocity Δv=v 2−v 1 =13.6−20=−6.40m/s

The negative sign means velocity is decreasing.

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Answer:

option 3, as circuit breakers are mostly used as precautions

The magnitude of the acceleration of the body is approximately 1.802 m/s^2 when forces of magnitude 5 Newton and 4 Newton act on a body of mass 4.0 kg at a right angle to each other.

To determine the magnitude of the acceleration of a body when two forces act on it at a right angle, we can use the Pythagorean theorem and Newton's second law of motion.Newton's second law states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). In this case, the net force is the vector sum of the two forces acting on the body.Using the Pythagorean theorem, we can find the magnitude of the net force. Let's call the force with magnitude 5 Newton as F1 and the force with magnitude 4 Newton as F2. The net force (Fnet) can be calculated as the square root of the sum of the squares of the individual forces: Fnet = sqrt(F1^2 + F2^2).Now we can substitute the net force into Newton's second law to find the acceleration (a). Rearranging the formula, we have a = Fnet / m.Plugging in the values, Fnet = sqrt(5^2 + 4^2) = sqrt(25 + 16) = sqrt(41) Newtons. The mass (m) is given as 4.0 kg.

Finally, the magnitude of the acceleration of the body is calculated as a = Fnet / m = sqrt(41) / 4.0 ≈ 1.802 m/s^2.

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The true statement about mass movement is: some mass movements occur with no discernible trigger.

Mass movements can be caused by various factors, such as changes in slope, water saturation, or even sudden events like earthquakes, not all events have a discernible trigger. Some events occur due to natural processes such as erosion or weathering, while others may be influenced by human activity.

However, water does play a significant role in mass movement events, as saturation with water can increase friction among particles and trigger movement. Sometimes they can happen without a clear, identifiable cause.

Therefore some mass movements occur with no discernible trigger.

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The person's complete trip was a 6km round trip because they traveled 3km north and then 3km south, returning to their original location.

A trip is a journey or excursion to some destination, usually for a specific purpose. It can be as short as a day trip or as long as a round-the-world adventure. A trip typically involves travel by foot, car, railroad, boat, or airplane and often involves multiple destinations. It may also involve activities such as camping, hiking, sightseeing, and other leisure activities. Travelers usually plan trips in advance to ensure they have enough time to see and do the things they want to. Trips can also be spontaneous, with travelers deciding on the fly where to go and what to do.

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The mass of satellite B is equal to 2 X 10³ Kg.

Mass of satellite A = m = 1.5 X 10³ Kg

Mass of satellite B = m'

Velocity of satellite A = v = 8 X 10³ m/s

Velocity of satellite B = v' = 6 X 10³ m/s

To find mass of satellite B = m' =

Using the theorem of conservation of linear momentum we get,

= momentum of satellites initially = momentum of satellites finally

= mv + m'v' = m(0) + m'(0)

= mv + m'(-v') = 0

= mv = + (m'v')

= 1.5 X 10³ X 8 X 10³ = m' X 6 X 10³

= m' = ( 1.5 X 10³ X 8 X 10³ ) / 6 X 10³

= m' = 2000 Kg

Thus, mass of satellite B is 2 X 10³ Kg.

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Answer:

The entire rainbow of radiation observable to the human eye only makes up a tiny portion of the electromagnetic spectrum – about 0.0035 percent. This range of wavelengths is known as visible light.

Explanation:

Please Mark me brainliest

Answer:

Kinetic energy

Explanation:

Answer:

A centripetal force is any force that induces circular motion in an object. How is the centripetal force related to the radius of the circular path the mass is moving on? The force is inversely proportional to the radius of the path.

Answer:

4,050

Explanation:

I did the math.

Answer:

its 4,050

Explanation:

i just took the test 100%

Answer:

the filling stops when the pressure of the pump equals the pressure of the interior air plus the pressure of the walls.

Explanation:

This exercise asks to describe the inflation situation of a spherical fultball.

Initially the balloon is deflated, therefore the internal pressure is equal to the pressure of the air outside, atmospheric pressure, when it begins to inflate the balloon with a pump this creates a pressure in the inlet valve and as it is greater than the pressure inside, the air enters it, this is repeated in each filling cycle, manual pump.

When the ball is full we have two forces, the one created by the external walls and the one aired by the pressure of the pump, these forces are directed towards the inside, but the air molecules exert a pressure towards the outside, which translates into a force. When these two forces are equal, the pump is no longer able to continue introducing air into the balloon.

Consequently the filling stops when the pressure of the pump equals the pressure of the interior air plus the pressure of the walls.

Answer:  the most potential energy ==  5 kg book, 2 m from the ground= 98 Joules

Explanation:

potential energy = m g h

m = mass

g = acceleration due gravity  = 9.8 m/s²

h = distance above  ground

1.  Pe₁ = 1 kg x 2 m x g  = 2 g

2. Pe₂ = 5 kg x 2 m x g = 10 g = 10 kg m x 9,8 m/s² = 98 Joules

3. Pe₃ = 1 kg x 0,5 m x g = 0,5 g

4. Pe₄ = 5 kg x 0.5 m x g = 2,5 g  

10 > 2,5 > 2 >0,5

Answer:

B. 8 years

Explanation:

D = 1 a.u. - Distance from the Sun to the Earth in astronomical units (a.u.)

D₁ = 4 a.u - Distance from the Sun to the planet

T = 1 year - The period of the earth's revolution around the Sun

__________

T₁ - ? - The period of revolution of the planet around the Sun

Kepler's law

(T₁/T)² = (D₁/D)³

(T₁ / 1)² = (4 / 1)³

T₁² = 64

T₁ = √ 64 = 8 years

B. 8 years

The relationship between the planet's period and the Earth's period and cube root of the ratio between the planet's distance from the Sun and the Earth's distance from the Sun.

Kepler's third law is the theory applied to this puzzle.

Write the expression for the period of the planet first using Kepler's rule to take into account the period of the Earth, the distance from the Sun to the Earth, and the distance from the Sun to the planet.

To compute the period of the planet, finally, substitute the appropriate quantities. The relationship between the period and the separation between the Sun and the planet is provided by, in accordance with Kepler's third law: T² ∝ a³

T is the period in this case, and an is the separation between the planet and the Sun.

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The tension in the horizontal portion of the rope is 39.24 N.  In a system of two blocks connected by a rope passing over two frictionless pulleys, the tension in the rope is the same throughout the rope.

We can use this fact to solve for the tension in the horizontal portion of the rope.

Let T be the tension in the horizontal portion of the rope, as shown in the figure. The weight of each block is given by mg, where m is the mass of each block and g is the acceleration due to gravity. The net force acting on each block is the tension in the rope pulling it up, minus the weight pulling it down:

For the block on the left: T - mg = ma

For the block on the right: T - mg = ma

where a is the acceleration of the system.

Since the blocks are not moving, the acceleration of the system is zero, so we can solve these two equations for T:

T = mg

Substituting m = 4 kg and g = 9.81 m/s^2, we get:

T = (4 kg)(9.81 m/s^2) = 39.24 N

So the tension in the horizontal portion of the rope is 39.24 N.

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The time constant of the circuit can be determined from the formula τ = RC. The values given in the question are R = 4.00 MΩ and C = 3.00 µF. Thus, the time constant is given as:τ = RC = (4.00 × 10^6 Ω) × (3.00 × 10^-6 F) = 12 secondsb. The current in the circuit can be found by using Ohm’s law, which states that I = V/R, where V is the voltage across the circuit.

The voltage across the circuit is 12.0 V, so the current is given as:I = V/R = (12.0 V)/(4.00 MΩ) = 3.00 µAThe charge on the capacitor as a function of time can be found using the formula Q = Qmax (1 - e^(-t/τ)), where Qmax is the maximum charge that can be stored by the capacitor. The maximum charge can be found using the formula Qmax = CV, where V is the voltage across the capacitor.

The voltage across the capacitor is the same as the voltage across the circuit, which is 12.0 V. Thus, the maximum charge that can be stored by the capacitor is:Qmax = CV = (3.00 × 10^-6 F) × (12.0 V) = 36 µCThe charge on the capacitor as a function of time is given as:Q = Qmax (1 - e^(-t/τ)) = (36 µC) (1 - e^(-t/12)).

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