a ball is thrown across the street. During its flight, the ball's speed is lowest at?
A. The beginning of its flight.
B. The end of its flight.
C. The highest point of its flight.
D. The speed is constant throughout the flight.

The correct answer is c) 1.The new internal energy is 1.5 times the old energy measured relative to the internal energy at 0 K, when both the pressure and volume of an ideal gas of diatomic molecules are doubled. Therefore, the correct answer is c) 1.

For an ideal gas of diatomic molecules, each molecule has five degrees of freedom. The internal energy of such a gas is given by: U = Nf/2 kTwhere N is the number of molecules, f is the number of degrees of freedom of each molecule (5 for a diatomic molecule), k is the Boltzmann constant, and T is the temperature in kelvins.

The internal energy is proportional to temperature for a given number of particles and the volume. If the pressure and volume are both doubled, the number of particles remains the same, and the temperature will also double. As a result, the new internal energy will be 2 times the old internal energy, measured relative to the internal energy at 0 K.Therefore, U' = 2U = Nf kT' = Nf k(2T) = 2Nf/2 kT (the new internal energy)At absolute zero temperature (0 K), the internal energy of an ideal gas is U = 0. At this point, the new internal energy is equal to 1.5 times the old internal energy measured relative to the internal energy at 0 K. Thus, the ratio of the new internal energy to the old internal energy is 1.5/1 = 1.5. Hence, the correct answer is c) 1.

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When three different resistors are connected in series to a battery, the current through all resistors is the same.

In a series circuit, there is only one path for current to flow through. Current is the same through each component.

In a series circuit, the total voltage is divided across each component, and the voltage drop across each component is proportional to its resistance.

The equivalent resistance of the circuit is the sum of all resistors. It is not an algebraic sum, rather it is the arithmetic sum of the resistors. Hence, option A is incorrect.

The other two statements are also incorrect as the voltage on each resistor is not the same, it is divided across each resistor in proportion to its resistance. Therefore, the correct statement about the given circuit is: Currents through all resistors are the same.

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The time when the object is not moving on the velocity time graph is  at the point in which the line crosses the x - axis.

The velocity time graph can be used to observe the movement of a particle. The graph consist of three main parts;

We can say that the time when the object is not moving on the velocity time graph is  at the point in which the line crosses the x - axis.

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Primordial heat and radiogenic heat are the two main sources of the Earth's interior heat. The disintegration of radioactive materials deep below the Earth's interior produces radiogenic heat.

The Earth's mantle and core contain these elements, including uranium, thorium, and potassium. These elements produce heat when they decompose, which is energy. The heat produced by the Earth since its origin 4.5 billion years ago is known as primordial heat. The energy generated during the Earth's birth as a result of the condensation of gas and dust from the solar nebula is what causes this heat. The heat generated by this process is still present in the Earth's interior and is what causes the Earth's surface to move.

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Answer:

No force is more familiar than gravity — it's what keeps our feet on the ground, after all. And Einstein's theory of general relativity gives a mathematical formulation for gravity, describing it as a “warping” of space.

When the earth passes through orbit that has the trail of dust and gas after the comet passes through the orbit, the are chnaces of meteor shower.

Here, in the given image, the comet path is intersecting the earth's orbit.

Thus, the chances of meteor shower are very large if there is the comet whose trail of dust or gas has just passes through the nearby the earth orbit.

Answer:

The speed of sound is greater in hot air than it is in cold air. This is because the molecules of air are moving faster and the vibrations of the sound wave can therefore be transmitted faster. This means that when sound travels from hot air to cold air or from cold air to hot air it will refract.

Explanation:

Hope this will be help!

The temperature of the box and floor eventually rise as a result of the thermal energy flowing as heat inside these two things.

This is further explained below.

Generally, The energy present in a system that determines its temperature is referred to as thermal energy.

Thermal energy flows as heat. Thermodynamics is a whole field of physics that studies how heat is transmitted across various systems and how work is performed in the process (see the first law of thermodynamics).

In conclusion, This thermal energy is transferred in the form of heat throughout the box as well as the floor, which eventually results in an increase in temperature for both of these locations.

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Answer:

Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).

Explanation:

I hope this helps.

Answer: gravity is one major force that creates tides

Explanation:

in 1687, sir Isaac newton explained that ocean tides result from the gravitational attraction of the sun and the moon on the oceans of the earth

Answer:

The pressure difference required between the two ends of the 1.6 km pipe section, with a diameter of 29 cm, to transport the oil at a rate of 650 cm^3/s, is approximately 0.398 Pa.

Explanation:

To calculate the pressure difference between the two ends of a pipe, we can use the Poiseuille's Law equation, which relates flow rate, viscosity, pipe length, diameter, and pressure difference.

The formula is as follows: ΔP = (8 * n * L * Q) / (π * r^4)

Where:

ΔP is the pressure difference,

n is the viscosity of the fluid,

L is the length of the pipe section,

Q is the flow rate,

and r is the radius of the pipe (half of the diameter).

Given:

L = 1.6 km = 1600 m (convert to meters)

Diameter = 29 cm

Radius (r) = 29 cm / 2 = 14.5 cm = 0.145 m (convert to meters)

Q = 650 cm^3/s = 650 * 10^-6 m^3/s (convert to cubic meters per second)

n = 0.20 Pa.s (viscosity)

p = 950 kg/m^3 (density)

ΔP = (8 * 0.20 * 1600 * 650 * 10^-6) / (π * (0.145)^4)

ΔP ≈ 0.398 Pa

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The acceleration of the wagon along the ground is 3.6 m/s².

To solve the problem above, we need to use the formula of acceleration as related to force and mass.

Acceleration: This can be defined as the rate of change of velocity.

⇒ Formula:

⇒ Where:

⇒ make a the subject of equation 1

From the question,

⇒ Given:

⇒ Substitute these values into equation 2

Hence, The acceleration of the wagon along the ground is 3.6 m/s²

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Answer: 3.60 m/s^2

Explanation:

QUESTION-

What is the acceleration along the ground of a 10 kg wagon when it is pulled with a force of 44 N at an angle of 35° above the horizontal?

ANSWER

3.60 m/s^2 = 3.6 m/s^2

Seeds of gymnosperms likely are not dispersed by animals because they are not enclosed in a fruit as occurs with angiosperm seeds.

What are gymnosperms and angiosperms?

Gymnosperms and angiosperms are different taxonomic groups of seed plants, which have certain particular features such as the presence of fruits angiosperms, it being an adaptive advantage for the dispersion of seeds through animals.

Therefore, with this data, we can see that gymnosperms and angiosperms are different groups of seed plants and angiosperms are evolutionary are more adapted to disperse their seed through animals due to the presence of fruits.

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Here, we are asked to identify steps which are common to both the process of technological design and the process of scientific investigation.

1. Researching related information

2. Determining affordability and availability.

3. Building a prototype.

4. Conducting tests or trials.

5. Analyzing results.

The list above is orderly.

The first iteration involves researching related information about the technological design or scientific investigation as the case may be. This is the first step after the idea-birth process.

The second iteration involves Determining the affordability and availability of the initiative. It is at this point that the process requires conducting a feasibility study.

Also, a prototype is needed because, a large scale effort cannot be wasted without first trying on a small scale and analyzing results obtained from the tests conducted.

Conducting tests or trials is next on the list as the prototype needs to be tested and the results analyzed accordingly.

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Answer:

Here, we are asked to identify steps which are common to both the process of technological design and the process of scientific investigation.

1. Researching related information

2. Determining affordability and availability.

3. Building a prototype.

4. Conducting tests or trials.

5. Analyzing results.

The list above is orderly.

The first iteration involves researching related information about the technological design or scientific investigation as the case may be. This is the first step after the idea-birth process.

The second iteration involves Determining the affordability and availability of the initiative. It is at this point that the process requires conducting a feasibility study.

Also, a prototype is needed because, a large scale effort cannot be wasted without first trying on a small scale and analyzing results obtained from the tests conducted.

Conducting tests or trials is next on the list as the prototype needs to be tested and the results analyzed accordingly.

Answer:

302129m

Explanation:

Using s= ut + 1/2at²

But u= 0

So

S= 1/2(3.1)(441.5)²

=302129m

Answer:

2. Ahead of the package

Explanation:

The plane is going straight without stopping while the package is going straight down.

Answer:

The Coriolus effect causes the spin in a hurricane

The center of a hurricane is called the eye

Hurricanes form over warm ocean water in the tropics

Explanation:

Answer: The Coriolus effect causes the spin in a hurricane

The center of a hurricane is called the eye

Hurricanes form over warm ocean water in the tropics

Explanation:

I got it right on edge! Plz mark brainlist love you all <3

Answer:

A is the answer .(A) is correct

The minimum stopping distance for the car traveling at a speed of 36 m/s is 117 meters.

The minimum stopping distance for a car can be calculated using the formula:

Stopping Distance = Thinking Distance + Braking Distance

The thinking distance is the distance the car travels while the driver reacts to a situation and applies the brakes. The braking distance is the distance the car travels while braking to a stop.

To calculate the thinking distance, we can use the formula: Thinking Distance = Speed x Reaction Time.

Given that the car is traveling at a speed of 36 m/s, we need to know the reaction time of the driver to calculate the thinking distance. Let's assume a typical reaction time of 1 second for this example.

Thinking Distance = 36 m/s x 1 s = 36 m

To calculate the braking distance, we need to use the formula: Braking Distance = (Speed 2) / (2 x Deceleration)

Deceleration is the rate at which the car slows down. Let's assume a deceleration of 8 m/s^2 for this example.

Braking Distance = (36 m/s) 2 / (2 x 8 m/s 2) = 81 m

Therefore, the minimum stopping distance for the same car traveling at a speed of 36 m/s is the sum of the thinking distance and the braking distance:

Stopping Distance = 36 m + 81 m = 117 m

The minimum stopping distance for the car traveling at a speed of 36 m/s is 117 meters.

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The balanced formula is B.

Answer:

A although am not seeing the cheetah

Yes, all the jovian planets (also known as gas giants) lie beyond the asteroid belt in our solar system.

The jovian planets include Jupiter, Saturn, Uranus, and Neptune. They are characterized by their large size, primarily composed of hydrogen and helium, and lack of a solid surface.

These planets are located in the outer region of the solar system, beyond the asteroid belt, which is situated between the orbits of Mars and Jupiter.

The asteroid belt is a region of space that contains numerous small rocky bodies called asteroids. It is located primarily between the orbits of Mars and Jupiter.

The jovian planets are located farther out from the Sun and are separated from the inner rocky planets (Mercury, Venus, Earth, and Mars) by this asteroid belt.

Therefore, it is correct to state that all the jovian planets lie beyond the asteroid belt.

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Answer:

At 11 AM, the train is a constant speed of 110 km/h. when the truck is 160 ahead. When they meet, it will be 2 PM

Explanation:

At the train's first hour he moved to 110 km. The truck is at 160 km. The second hour includes train at 220 km, with truck at 240. At 2 PM, they are at the same place.

Sample A of 4.0 kg of water would experience the smallest drop in temperature since water has a higher specific heat capacity than oil and dirt.

This means that water requires much more energy to heat or cool by the same amount as oil or dirt. Therefore, when the same amount of heat is removed from each sample, the water sample experiences the smallest drop in temperature.

Sample C of 4.0 kg of dirt would experience the largest drop in temperature due to its low specific heat capacity, meaning that it takes less energy to heat or cool dirt than water or oil.

Therefore, when the same amount of heat is removed from each sample, the dirt sample would experience the largest drop in temperature.

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The steps the class should take are to formulate a hypothesis and proceed with the necessary steps in order to prove or disprove the hypothesis.

In order to draw conclusions as to the effects of gravity on objects of different masses, an experiment is in order. To properly create an experiment, we need to know what we are going to test, how to do so, and then we can compare data and draw conclusions. To do this, the steps we can take are:

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After the collision, the motorcycle's velocity is around 3.42 m/s, and the bicycle's velocity is approximately -1.42 m/s in the opposite direction.

To solve this problem, we can apply the principles of conservation of momentum and the coefficient of restitution. The conservation of momentum states that the total momentum before the collision is equal to the total momentum after the collision.

Let's denote the initial velocity of the motorcycle as v1, the initial velocity of the bicycle as v2, the final velocity of the motorcycle as v1f, and the final velocity of the bicycle as v2f.

The total momentum before the collision can be calculated as:

Initial momentum = (mass of the motorcycle * initial velocity of the motorcycle) + (mass of the bicycle * initial velocity of the bicycle)

= (75 kg * 10 m/s) + (45 kg * 8 m/s)

= 750 kg·m/s + 360 kg·m/s

= 1110 kg·m/s

According to the conservation of momentum, the total momentum after the collision is equal to the initial momentum:

Total momentum after the collision = (mass of the motorcycle * final velocity of the motorcycle) + (mass of the bicycle * final velocity of the bicycle)

= (75 kg * v1f) + (45 kg * v2f)

Now, let's consider the coefficient of restitution (e = 0.5). The equation for the coefficient of restitution is:

Coefficient of restitution (e) = (relative velocity of separation) / (relative velocity of approach)

= (v2f - v1f) / (v2 - v1)

Since it's a head-on collision, the relative velocity of approach is the sum of the velocities of the two masses before the collision:

Relative velocity of approach = v2 - v1

To find the relative velocity of separation, we can use the equation:

Relative velocity of separation = e * (relative velocity of approach)

= e * (v2 - v1)

Substituting these values into the equation for conservation of momentum, we have:

1110 kg·m/s = (75 kg * v1f) + (45 kg * v2f)

Since we have two unknowns (v1f and v2f), we need another equation to solve for them. Using the equation for the relative velocity of separation, we have:

v2f - v1f = e * (v2 - v1)

45 kg * v2f - 75 kg * v1f = 0.5 * (45 kg * 8 m/s - 75 kg * 10 m/s)

Now we have a system of two equations with two unknowns. Solving these equations simultaneously will give us the final velocities of the motorcycle (v1f) and the bicycle (v2f) after the collision.

By solving these equations, we find that the final velocity of the motorcycle (v1f) is approximately 3.42 m/s, and the final velocity of the bicycle (v2f) is approximately -1.42 m/s. The negative sign indicates that the bicycle is moving in the opposite direction after the collision.

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Answer:

360 degrees is one full rotation starting at zero

it take 2 s  to the flag to rotate once in a full circle  with 3 rad/s of angular velocity.

Angular velocity is "rate of change of angular displacement with respect to time". i.e. ω= dθ/dt. it is also defined as angular displacement over time. i.e. ω = angular displacement/Time.

Angular velocity shows how much angle can be covered in unit time. It's SI unit rad/s.

Angular acceleration is rate of change of Angular velocity with respect to time.

i.e. α = dω/dt if an object changes its angular velocity in short time, we can say that it has greater angular acceleration. It is expressed in rad/s².

In this problem we have to calculate time, but the angular velocity id not given.

Consider the angular velocity is 3 rad/s.

Given,

Angular displacement θ = 2π

angular velocity ω = 3 rad/s

Time t = ?

Time = θ/ω

Time = 2π/3 rad/s = 2 s

Hence the answer is 2s.

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The phenomenon being explained is the temperature on the dark side of Venus, which is unexpectedly warmer than anticipated given its slow rotation.

Scientists observed that Venus rotates very slowly, leading to the hypothesis that Venus, like Mercury, keeps one face always towards the Sun. If this were the case, the dark side of Venus would be expected to be exceedingly cold. However, measurements by Pettit and Nicholson revealed that the temperature on the dark side of Venus is not as low as expected, with a temperature of -9°F (-23°C), warmer than our stratosphere in daylight. This challenges the assumption that the dark side should be much colder.

To explain this phenomenon, various theories have been proposed. One theory suggests that atmospheric currents from the bright side of Venus might perpetually heat the dark side. However, this theory is deemed unlikely because it is difficult to imagine how the atmospheric currents alone could consistently heat the dark side without significant cooling.

Another plausible theory is that Venus rotates fairly often to prevent the dark side from cooling excessively. If Venus had a slower rotation, the dark side would have more time to lose heat and cool down significantly. The measured temperature suggests that Venus undergoes more frequent rotations, helping to maintain a relatively warmer temperature on the dark side.

Among the theories, the one proposing a frequent rotation of Venus seems the most plausible based on the observed temperature measurements. It aligns with the criterion of adequacy by providing a reasonable explanation for why the dark side is not as cold as expected. The rotation helps to distribute heat more evenly across the planet, preventing excessive cooling on the dark side.

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Answer:

B

Explanation:

Answer:

Among those two medium, light would travel faster in the one with a reflection angle of \(32^{\circ}\) (when light enters from the air.)

Explanation:

Let \(v_{1}\) denote the speed of light in the first medium. Let \(v_{\text{air}}\) denote the speed of light in the air. Assume that the light entered the boundary at an angle of \(\theta_{1}\) to the normal and exited with an angle of \(\theta_{\text{air}}\). By Snell's Law, the sine of \(\theta_{1}\!\) and \(\theta_{\text{air}}\!\) would be proportional to the speed of light in the corresponding medium. In other words:

\(\displaystyle \frac{v_{1}}{v_{\text{air}}} = \frac{\sin(\theta_{1})}{\sin(\theta_{\text{air}})}\).

When light enters a boundary at the critical angle \(\theta_{c}\), total internal reflection would happen. It would appear as if the angle of refraction is now \(90^{\circ}\). (in this case, \(\theta_{\text{air}} = 90^{\circ}\).)

Substitute this value into the Snell's Law equation:

\(\begin{aligned}\frac{v_{1}}{v_{\text{air}}} &= \frac{\sin(\theta_{1})}{\sin(\theta_{\text{air}})} \\ &= \frac{\sin(\theta_{c})}{\sin(90^{\circ})} \\ &= \sin(\theta_{c})\end{aligned}\).

Rearrange to obtain an expression for the speed of light in the first medium:

\(v_{1} = v_{\text{air}} \cdot \sin(\theta_{1})\).

The speed of light in a medium (with the speed of light slower than that in the air) would be proportional to the critical angle at the boundary between this medium and the air.

For \(0 < \theta < 90^{\circ}\), \(\sin(\theta)\) is monotonically increasing with respect to \(\theta\). In other words, for \(\!\theta\) in that range, the value of \(\sin(\theta)\!\) increases as the value of \(\theta\!\) increases.

Therefore, compared to the medium in this question with \(\theta_{c} = 27^{\circ}\), the medium with the larger critical angle \(\theta_{c} = 32^{\circ}\) would have a larger \(\sin(\theta_{c})\). such that light would travel faster in that medium.

Answer:

change in direction

Explanation:

ans maybe correct