Hulks body expands 0.54 J energy to digest 1g of a Takis with 2.7 J energy. How efficient is his body at converting food into usable energy?

The change in gravitational potential energy is the same for both balls, leading to the conclusion that the change in kinetic energy must also be the same.

a) The ball will have maximum kinetic energy.

When all the initial energy of the ball is converted into kinetic energy, the ball will have the maximum possible kinetic energy. This occurs when the ball is released from a height and falls to the ground without any loss of energy due to friction or air resistance.

The ball will be moving at its maximum speed when all its initial energy is converted into kinetic energy.

b.The ball will experience a greater change in kinetic energy.

The amount of kinetic energy of a moving object is proportional to its velocity squared. Therefore, if the ball is in the air longer, it will have more time to accelerate due to the force of gravity and gain more velocity, resulting in a greater change in kinetic energy.

A longer duration in the air will result in a greater change in kinetic energy for the ball.

c. The change in kinetic energy must be the same for both balls.

The change in gravitational potential energy of a ball that is dropped from a certain height is determined by the height of the drop and the gravitational field strength. Since the height and gravitational field strength are the same for both balls, the change in gravitational potential energy will be the same.

According to the law of conservation of energy, the change in gravitational potential energy must be equal to the change in kinetic energy. Therefore, the change in kinetic energy must be the same for both balls.

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The total force from both the crate and the person be 500 N.

According to question, the system is in rest.

The force from crate is 250 N and from a person is also 250 N. So, the total force is 500 N.

Total force = 250 + 250

Total force = 500 N

Force is push or pull of an object. force is the product of mass and acceleration and its S.I. unit is newton represented by N.

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The volume that flows through the pipe in 6 seconds is 30 cubic meters, and the mass of the water is 30000 kg.

If 5 cubic meters of water pass through the pipe in 1 second, then in 6 seconds, the volume that flows through the pipe would be:

5 m^3/s * 6 s = 30 m^3

To find the mass of the water that flows through the pipe, we can use the density of water:

                              mass = density * volume

                              mass = 1000 kg/m^3 * 30 m^3 = 30000 kg

So, the volume that flows through the pipe in 6 seconds is 30 cubic meters, and the mass of the water is 30000 kg.

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The resultant force acting on the door at an altitude of 10 km is 115.2 kilonewtons (kN).

The pressure inside an aircraft is kept at 80 kilopascals (kPa) and the doors have an area of 2 square meters (m²).

The atmospheric pressure at an altitude of 10 kilometers (km) is much lower. To calculate the difference in pressure, we need to know the atmospheric pressure at that altitude.

At an altitude of 10 km, the atmospheric pressure is around 22.4 kPa, which is much lower than the pressure inside the aircraft.

The difference in pressure can be calculated as 80 kPa - 22.4 kPa = 57.6 kPa.

The force acting on the door can be calculated using the equation:

Force = Pressure x Area

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Answer:

Sunlight is a mixture of colors. When it passes through a glass prism, some of the light is bent, or refracted, more than other portions. And just as sunlight passing through a prism is bent, so is sunlight passing through drops of water. This produces an atmospheric solar spectrum in the sky for all to see: a rainbow.

Explanation:

Answer:

It would take the cyclist 2 hours to cycle to school.

Explanation:

5km/hr for 2 hours would be 10km.

The x-component of the net force on q2 is -1.439 × 10^-10 N.

The given charges are Q1 = -4.60 * 10^-6 C, q2 = +3.75 * 10^-5 C, and q3 = -5.30 * 10^-6 C. We need to find the x-component of the net force on q2.

The formula for force is F = K(q1 * q2) / r^2, where K is Coulomb's constant = 8.99 × 10^9 Nm^2/C^2, q1 and q2 are the charges in Coulombs, and r is the separation distance in meters.

The force between q2 and Q1 on the x-axis can be calculated as:

F1 = K(Q1 * q2) / r^2 ... (i)

Here, K = 8.99 × 10^9 Nm^2/C^2, Q1 = -4.60 × 10^-6 C, q2 = 3.75 × 10^-5 C, and r = 0.05 m.

Calculating F1:

F1 = (8.99 × 10^9) * (-4.60 × 10^-6) * (3.75 × 10^-5) / (0.05)^2

F1 = -1.242 × 10^-10 N

Similarly, the force between q2 and q3 on the x-axis can be calculated as:

F2 = K(q2 * q3) / r^2 ... (ii)

Here, K = 8.99 × 10^9 Nm^2/C^2, q2 = 3.75 × 10^-5 C, q3 = -5.30 × 10^-6 C, and r = 0.06 m.

Calculating F2:

F2 = (8.99 × 10^9) * (3.75 × 10^-5) * (-5.30 × 10^-6) / (0.06)^2

F2 = -1.971 × 10^-11 N

The net force can be calculated by adding F1 and F2, considering their x-components:

Fnet = F1 + F2

Fnet = (-1.242 × 10^-10) + (-1.971 × 10^-11)

Fnet = -1.439 × 10^-10 N

As both forces act in opposite directions along the x-axis, the net force is in the negative x-direction.

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All for the sattement A, B, and E is True and satement C, D, and F is False where you learned about astronomy from space.

A .The Compton, Chandra and Spitzer telescopes are all examples of space telescopes.

-This statement is True.

B. Most types of electromagnetic waves are not visible to ground-based telescopes.

-This statement is True.

C. Enough infrared energy gets to Earth's surface that infrared telescopes do not need to be put in orbit.

-This statement is False.

D. Cosmic rays are the absolute highest-energy type of electromagnetic wave.

-This statement is False.

E. The Hubble Space Telescope makes observations at all wavelengths.

-This statement is True.

F. Earth's atmosphere has no effect on visible light, so there is no need to place an optical telescope in space.

-This statement is False.

Astronomy is the scientific study of celestial objects and phenomena, including stars, planets, galaxies, and the universe as a whole. Astronomers use various tools and techniques, such as telescopes, spectroscopy, and astrophysics, to observe and understand the properties and behavior of these celestial objects.

Through the study of astronomy, scientists have discovered many fascinating things about the universe, such as the existence of black holes, the age and size of the universe, and the formation and evolution of stars and galaxies. Astronomy has also played a significant role in advancing our understanding of fundamental physics, including the laws of gravity and the behavior of matter and energy at extreme conditions.

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Answer:

I'm pretty sure the speed of light is a constant so I my hypothesis is that the light will be travelling at *c*

polyester shares many characteristics with nylon, it is more easily dissolved by weak and concentrated acids.

Manufactured fibers can degrade in direct sunlight and melt at lower temperatures than natural fibers, which is a drawback. Textiles or fabrics are made from fibers.

Any fabric or textile created using polyester yarns or fibers is referred to as polyester in general. The term is an abbreviation for a synthetic, man-made polymer that is most frequently known by the name polyethylene terephthalate (PET).

Ethylene glycol and terephthalic acid are combined to create it. All of it may sound very scientific, but polyester is essentially a type of plastic.

Therefore, polyester shares many characteristics with nylon, it is more easily dissolved by weak and concentrated acids.

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Answer:

Explanation:

A plane mirror is the kind you look into when you look into a "regular" mirror. The image you see is right-side-up. These images are virtual. Real images are always upside down and are made by mirrors that are "parabolic" in shape. Virtual images are always right-side-up.

Answer:

Efficiency = 10.2 %

Explanation:

Given the following data;

Mass = 70 kg

Height = 50 m

Velocity = 10 m/s

We know that acceleration due to gravity is equal to 9.8 m/s².

To find the efficiency of energy conversion from potential to kinetic;

First of all, we would determine the potential energy;

P.E = mgh

P.E = 70 * 9.8 * 50

P.E = 34300 J

For the kinetic energy;

K.E = ½mv²

K.E = ½ * 70 * 10²

K.E = 35 * 100

K.E = 3500

Therefore, Input energy, I = 34300 J

Output energy, O = 3500 J

Next, we find the efficiency;

Efficiency = O/I * 100

Substituting into the formula, we have;

Efficiency = 3500/34300 * 100

Efficiency = 0.1020 * 100

Efficiency = 10.2 %

The velocity vs. time graph provides information about how the velocity of an object changes over time.

The velocity vs. time graph is a graphical representation of the object's velocity at different points in time. The graph consists of two axes: the vertical axis represents velocity, and the horizontal axis represents time. By examining the graph, you can determine various characteristics of the object's motion.

For example, a positive slope on the graph indicates that the object is moving in a positive direction with increasing velocity. A negative slope indicates motion in the opposite direction or decreasing velocity.

A horizontal line represents constant velocity, as the slope is zero. The steepness of the slope indicates the rate at which the velocity is changing. A steeper slope indicates a faster change in velocity.

The velocity vs. time graph is a valuable tool in understanding the motion of objects. By analyzing the graph's shape and slope, you can determine important information such as acceleration, deceleration, constant velocity, and direction of motion.

It provides a visual representation that aids in interpreting and predicting an object's motion over time.

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To remedy this issue, we create the illustrated free-body diagram, which shows all forces acting on the coin. The force along the incline balances out and acts in the opposite direction to the friction just before the coin begins to slide.

When the frictional force's maximum value, F = R = mg sin, is reached, the sliding point is reached.

One sort of frictional motion that occurs when two surfaces come into contact is sliding.

f=mgsinθ.

Friction is the normal force multiplied by the coefficient of friction: f=Nμs.

Equating these two, we have mgcosθ⋅

μs=mgsinθ

Solving for μs, we have μs=sinθcosθ,

=tanθ.

Substituting the angle of 17∘ in the equation, we have

μs=tan30∘,

=1/√3

which is the coefficient of static friction.

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Answer:

In free fall (with no external force acting on the pot), the acceleration for the pot would be -9.8m  (9.8 is the measurement used for acceleration, and its negative because its falling  down). -9.8 x 3 = 29.4m/s

Explanation:

im not sure if its correct but i think this is how you solve it

Answer:

The capacitor helps to store data even after the battery is removed

Explanation:

The cell phone is fitted with different types of capacitors, which come in all shapes and sizes. However they come, their main function is to store charges within them, and dissipate these charges when necessary.

This serves a great purpose in the printed circuit boards of phones as they provide the power needed for data to be stored even when the battery of the phone is removed.

A capacitor is a solid-state device because it has no moving part. It just stores charges within its parallel plates for the phone until the power is needed.

Answer:

The average velocity is 7.5 km/h

Explanation:

Were Gonna convert minutes to hours

12 minutes = 12/60  hours = 0.2 hours

Now we estimate the average velocity of the distance traveled over this time

1.5 / 0.2 km/h = 7.5 km/h

Answer: The fork feels colder when you touch it because Steel conducts thermal energy better than plastic. The correct statement is 1

Explanation:

The ability of a material to transfer heat energy in an environment is known as thermal conductivity. It feels cooler to touch a steel spoon than a plastic spoon found in the same temperature because steel which is a type of metal is a highly efficient thermal conductor than spoon which is a plastic.

Metals can be defined as those substances which forms positive ion in a chemical reaction by lossing it's electrons. It has the following properties:

--> it is solid at room temperature

--> it has high melting point

--> it has high boiling point and

--> it is malleable.

Metals are said to be good thermal conductor because they contain free flowing conduction electrons. Therefore, when you touch a steel spoon and plastic spoon, it feels cooler because the steel metal is able to conduct heat away from your hand faster than the plastic which is a poor conductor of heat.

Answer:

1. Steel conducts thermal energy better than plastic.

Explanation:

Both objects are at the same temperature, and when you touch them, you feel the steel to be colder.

This happens because steel is a better thermal conductor, then when you touch it, it "steals" more thermal energy from you than the plastic.

As the amount of thermal energy transmitted is greater for the steel, you will feel it to be colder.

Then the correct option is the first one, steel conducts thermal energy better than plastic.

Answer:

In terms of both price and availability, the Birkin bag is as elusive as it is exclusive. For more than two decades, the bag has been the most sought item in the handbag industry. For such a modest bag, that's a lot of staying power (in looks alone, the design itself takes some 18 hours and is done by a single craftsman).

Of course, it's likely that the bag's rarity is what keeps it at the top of every want list. It is difficult, for example, to stroll into a Hermès store and buy a bag –– even if you could afford to pay the minimum price of $10,000. No, you have to be on an elite list to receive a Birkin.

Explanation:

There are alot more things like the Birkin Bag that use the same marketing skills and it works for alot of companies.

The force produced by the train's engine will be 175000N.

Force is an external agent that has the power to alter an object's state of motion or rest. In a brief, force is a vector quantity that's also defined as a push or pull exerted on an object as a result of the object's contact with another object. The Newton (N) is the unit of force F.

F = ma

Here, F  is force, m is mass and a is acceleration of the object.

We are given here,

The force by the train weight = \(Fw\) =  150,000N

The force creates by the friction = \(F_{f}\) = 25,000N

Thus , to get the total force of the train's engine by adding force by weight and force by friction is given as,

\(F_{t} = F_{w}+ F_{f}\)

Then for getting total force of the train's engine putting above values in the expression ,

\(F_{t} = 150,000 N +25,000N\\F_{t} = 175,000N\)

Hence, the train’s engine has to produce 175000N force to become in equilibrium.

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The downtown is 5 miles far away, if the car travels at 10 miles / hour for 0.5 hours.

v = d / t

v = Velocity

d = Distance

t = Time

v = 10 mi / hr

t = 0.5 hr

d = v * t

d = 10 * 0.5

d = 5 mi

Velocity of the car is the rate of change of position of the car. In simple words it can be said as velocity is used to calculate the distance covered in a given amount of time.

Therefore, the downtown is 5 miles far.

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The estimated demand for Week 4 is 36.3

MAD(Mean Absolute Deviation) is used to calculate the average difference between forecast values and actual values. It calculates the deviation by taking the absolute value of the difference between actual and forecasted demand. The formula to calculate Mean Absolute Deviation is:

MAD= Sum of| Actual demand - Forecast demand | / number of periods

In the given table, the Actual demand is shown as B and the forecast demand is shown as F.

B Actual Forecast 11 40 41 35 38 3 38 35 33 30

Calculation of MAD:

Actual (B) Forecast (F) |B-F|11 40 29.041 35 5.043 38 0.053 3 35.054 38 3.055 35 0.056 33 3.057 30 3.058 0.0 30.0Total 103.0

The number of periods is 9 as shown in the table.

MAD= 103/9MAD= 11.44

Mean Squared Error (MSE) measures the average squared difference between the actual and forecasted values. The formula for MSE is:

MSE= Sum of (Actual demand - Forecast demand)^2 / number of periods.

Calculation of MSE:

Actual (B) Forecast (F) (B-F)^2 11 40 841 35 25 625 38 0 0 3 35 484 38 0 0 35 33 4 30 0 900Total 2854

The number of periods is 9 as shown in the table.

MSE= 2854/9MSE= 317.1

Therefore, the calculated MAD is 11.44 and MSE is 317.1.

Trend Projection formula is given by:

Y = a + bx

where Y is the estimated demand for a particular period.

a is the Y-intercept

b is the slope of the regression line x is the period number

In the given table, the Week number is shown as X and the Actual demand is shown as Y.

Week number Actual Demand 11 24 22 29

Using trend projection for Week 3, we can calculate the demand as follows:

Slope (b) = (nΣ(xy) - Σx Σy) / (nΣ(x^2) - (Σx)^2) =(2*22 - 1*24)/(2*3 - 1*1) = 20/5 = 4

Intercept (a) = Σy/n - b(Σx/n) =(24+22)/2 - 4(2/2) = 23Y = a + bx = 23 + 4(3) = 35

Therefore, the estimated demand for Week 3 is 35.

Using trend projection for Week 4, we can calculate the demand as follows:

Slope (b) = (nΣ(xy) - Σx Σy) / (nΣ(x^2) - (Σx)^2) =(2*29 - 1*24)/(2*5 - 1*1) = 34/9 = 3.78

Intercept (a) = Σy/n - b(Σx/n) =(24+22+29)/3 - 3.78(2.0) = 21.5Y = a + bx = 21.5 + 3.78(4) = 36.3

Therefore, the estimated demand for Week 4 is 36.3.

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The concentration of O2 in the trout stream is approximately 7.14 mg/L.

The concentration of O2 in a stream at equilibrium with air at 0.989 atm can be determined using the Henry's law constant (KH) for O2 in water. KH is the ratio of the concentration of a gas in a liquid to its partial pressure in the air above the liquid.

By using the KH value of 1.28 x 10^-3 mol/(L x atm) and the partial pressure of O2 in air at 0.989 atm, we can calculate the concentration of O2 in the stream.

To do so, we multiply the KH value by the partial pressure of O2, which gives us the concentration of O2 in the stream in units of mol/L. This value can then be converted to units of mg/L by multiplying by the molecular weight of O2, which is approximately 32 g/mol.

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When a rock is transported from the moon to the earth, both mass and weight are changed.

Explanation:

The reason why both mass and weight are changed when a rock is transported from the moon to the earth is that the gravitational field on the surface of the earth is stronger than that on the surface of the moon.

This means that the rock's mass, which is the measure of the amount of matter that an object contains, will remain the same.

However, the rock's weight, which is the force with which an object is attracted to the earth due to gravity, will be different since the gravitational pull on the moon is much weaker than that on the earth. This implies that when the rock is transported from the moon to the earth, it will experience a higher gravitational force which will cause it to weigh more compared to when it was on the moon.

Therefore, both mass and weight will change when a rock is transported from the moon to the earth.

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Answer:

A

Explanation:

take my answer with a grain of salt tho