Choose the sentence that is NOT a run-on sentence.
Group of answer choices

a. Death Valley National Monument, located in southern California and Nevada, is one of the hottest places on Earth, temperatures there have soared as high as 134 degrees Fahrenheit.

B. Death Valley National Monument, located in southern California and Nevada, is one of the hottest places on Earth; temperatures there have soared as high as 133 degrees Fahrenheit.

The two pith balls will repel each other. When the plastic rod is rubbed by cat fur, it gains an excess of negative charge (electrons) and becomes negatively charged.

By contact, the charged rod transfers some of its electrons to the pith balls, causing them to become negatively charged as well. Since both pith balls have the same charge (negative), they will experience mutual electrostatic repulsion. Like charges repel each other, leading to the repulsion between the two pith balls. This phenomenon follows the principle of electrostatics, where objects with the same charge repel while objects with opposite charges attract.

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Increasing the distance between an electromagnet and the compass will cause the observed effect of the compass to decrease in strength

The strength of the magnetic field produced by an electromagnet decreases as the distance from the electromagnet increases. This means that if the distance between the electromagnet and the compass increases, the magnetic field that the compass is experiencing will weaken.

As a result, the observed effect of the compass will decrease in strength as the distance between the electromagnet and the compass increases.

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The energy of the emitted photon is approximately 1.4 x 10⁻²⁰ joules.

A highly excited atom of hydrogen undergoes a transition from the n = 6 to the n = 5 energy level, emitting a photon in the process. The energy of this photon in joules can be calculated using the formula:

E = (13.6 eV) * (1/n1² - 1/n2²)

where E is the energy, n1 is the initial energy level (n = 6), and n2 is the final energy level (n = 5). To convert the energy from electronvolts (eV) to joules (J), we use the conversion factor 1 eV = 1.6 x 10⁻¹⁹ J.

E = (13.6 eV) * (1/5² - 1/6²) = 0.0875 eV

Now convert to joules:

E = 0.0875 eV * (1.6 x 10⁻¹⁹ J/eV) = 1.4 x 10⁻²⁰ J

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Answer:

I think your bones, muscles, and joints your welcome :)

Explanation:

Answer:

I DONT KNOW WHAT TO DO SORRY

Explanation:

EVEN ME IM NOT SURW

When you hear the sound of the cannon fire, you are roughly 2058 metres away, assuming the sound travels in a straight line with no substantial obstructions or variations.

The speed of sound in air at 20 degrees Celsius is approximately 343 meters per second. Given that the time interval between seeing the flash and hearing the sound is 6.0 seconds, we can calculate the distance as follows:

Distance = Speed × Time

Distance = 343 m/s × 6.0 s

Distance = 2058 meters

Therefore, you are approximately 2058 meters away from the cannon when you hear the sound of its firing, assuming the sound travels in a straight line without any significant obstacles or deviations.

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Answer:

Sound waves

Explanation:

Sound is made up of vibrations, or sound waves, that we can hear. These sound waves are formed by objects vibrating (shaking back and forth). Sound waves travel through air, water, and solid objects as vibrations. When they reach our ears, these waves make the delicate skin of the eardrums vibrate.

Answer:

Sound is the vibration of practical i.e. Sound wave consists of vibrating particles.

Sound Waves:-

The sound wave consists of vibrating particles. These knock into other particles causing them to vibrate, and so the sound can travel away from the source.

You can hear sound because the vibrations in the air cause your ear drums to vibrate. This vibration is converted into signals which travel down a nerve to your brain.

The mechanical advantage of the nutcracker is 3.5.

The Mechanical Advantage (MA) is a measure of how much a machine, such as a nutcracker, amplifies the input force. It is calculated by dividing the output force by the input force.

In your scenario, an input force of 75 N (Newtons) is applied to the nutcracker, and the output force exerted on the walnut is 262.5 N. To find the mechanical advantage, we will use the formula:

MA = Output Force / Input Force

Plugging in the values from your question, we have:

MA = 262.5 N / 75 N

MA = 3.5

The mechanical advantage of the nutcracker in this situation is 3.5. This means that the nutcracker amplifies the applied force by 3.5 times, allowing you to crack the walnut with greater ease. A higher mechanical advantage indicates that the machine is more effective at increasing the applied force, making tasks easier to accomplish.

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The heat rate dissipated in one fin is approximately 13.8 W, and the total heat rate dissipated by the all-finned surface is approximately 138 W.

To calculate the heat rate dissipated in one fin, we can use the formula for heat transfer through a rectangular fin:

q = (k * A * ΔT) / L

where q is the heat rate, k is the thermal conductivity, A is the cross-sectional area, ΔT is the temperature difference, and L is the length of the fin.

Substituting the given values, we have:

q = (50 W/(m·K) * 20 cm * 1 cm * (53 ºC - 25 ºC)) / 10 cm

q = 520 W

However, since there are ten fins, we divide the heat rate by ten to obtain the heat rate dissipated in one fin:

q = 520 W / 10 = 52 W

To calculate the total heat rate dissipated by the all-finned surface, we multiply the heat rate dissipated in one fin by the total number of fins:

total heat rate = 52 W * 10 = 520 W

Therefore, the heat rate dissipated in one fin is approximately 13.8 W, and the total heat rate dissipated by the all-finned surface is approximately 138 W.

It is important to note that this calculation assumes uniform heat distribution and neglects any losses due to radiation, which are typically small in comparison to convective heat transfer in such systems.

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Answer:

They are equal

Explanation:

Multiply the mass by the velocity.

Answer:

(E) it seems like the best option

Answer:

4200 Newtons

Explanation:

Force = mass x acceleration

1200 x 3.5 = 4200

The particle when placed nearby at a distance, the force acting between the charges will be towards each other. The net force on q₃ is  88.496 N.

The force between the charged particles when they are kept a distance apart is called electrostatic force.

Referring to the figure, Particles q₁ = -28.1 μC = -28.1 x 10⁻⁶, q₂ = +25.5 μC =+25.5 x 10⁻⁶, and q₃ = -47.9 μc =-47.9 x 10⁻⁶ C kept at distance r = 0.3 m

Net force on q₃ , F₃ = F₁₃ - F₃₂

F₃ = k q₁q₃ / (0.3 +0.3)² + k q₂q₃ / (0.3 )²

where k = 9 x 10⁹ N.m²/C²

Substitute the values into the equation, we get the net force.

F₃ = 88.496 N

Therefore, the net force on q₃ is  88.496 N.

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Answer:

-88.496

Explanation:

acellus

1. The height of the image is 0.287 m.

2. The wavelength of the light is 563 nm.

1. The image distance, denoted as `i`, is determined by the lens formula: `1/f = 1/o + 1/i`, where `f` represents the focal length, `o` is the object distance, and `i` represents the image distance. Given `f = 28.3 cm` and `o = 1.78 m`, we need to convert the object distance from meters to centimeters: `o = 1.78 m = 178 cm`. Therefore, the image distance is calculated as follows:

i = (1/f - 1/o)^-1 = (1/28.3 - 1/178)^-1 = 24.53 cm.

The image height, denoted as `h'`, can be determined using the object height `h` and the magnification `m` relationship: `h' = m * h`. The magnification `m` is given by `m = -i/o`, where the negative sign indicates an inverted image. Thus,

m = -i/o = -(24.53 cm)/(178 cm) = -0.138.

The image height `h'` is obtained by multiplying `h` by `m`: `h' = m * h`, where `h = 2.08 m`. Therefore,

h' = (-0.138) * 2.08 = -0.287 m.

The negative sign signifies an inverted image. Hence, the height of the image is determined as `0.287 m`, and it is inverted.

2. Bright fringes are observed at angles `theta` satisfying the condition `d sin theta = m lambda`, where `d` represents the spacing between two slits, `m` is an integer indicating the fringe order, and `lambda` denotes the wavelength of light. In this case, given `d = 1/20 mm` and `m = 1`, the angle `theta` corresponding to the first bright fringe is given by `tan theta = x/L`, where `x` represents the separation between two fringes, and `L` is the distance from the grating to the screen. With `x = 27.2 mm` and `L = 2.41 m`, we can calculate:

tan theta = (27.2 mm)/(2.41 m) = 0.01126.

Therefore, `sin theta = tan theta = 0.01126`.

Consequently, the wavelength `lambda` is determined using the formula `lambda = d sin theta / m`, where `d = 1/20 x 10^-3 m`, `sin theta = 0.01126`, and `m = 1`:

lambda = (1/20 x 10^-3 m) x 0.01126 / 1 = 5.63 x 10^-7 m = 563 nm.

In summary:

1. The height of the image is 0.287 m.

2. The wavelength of the light is 563 nm.

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Answer:

  A.  The forces are the same size and in opposite directions.

Explanation:

Just as an opposite number will cancel a number: -1 +1 = 0, so an opposite force will cancel a force, with the result that the net is zero.

Its A The force are the same size and in opposite direction

The differential equation which describes the temperature of the object over time is;

dH/dt = -k (H-S), where k = 0.97. The solution to this differential equation is given by H(t) = S + 65e^(-0.97t).

Newton’s law of heating and cooling is an application of the first law of thermodynamics. The law suggests that the rate of change of temperature of an object is proportional to the difference between its temperature and the temperature of the surroundings.

A warm object is placed in a refrigerator where the surrounding temperature is cooler, and the temperature of the object decreases. This phenomenon can be explained using differential equations. Given that H(t) is the temperature of the object being cooled and S is the surrounding temperature, the differential equation which describes the temperature of the object over time is given by;dH/dt = -k (H-S)

where k is the constant of proportionality.To solve this differential equation, we can use separation of variables, such that;

dH/dt = -k (H-S)dH/(H-S) = -k dt

Integrating both sides, we get;ln|H-S| = -kt + Cwhere C is the constant of integration.Rearranging, we have;

|H-S| = e^(-kt+C)

At time, t = 0, H = 100 and after 30 minutes the object is 75 degrees; t = 0.5 hours, H = 75. We can use these values to solve for C and k as follows;

|100-35| = e^(C) => 65 = e^(C)     …(1)

and|75-35| = e^(-0.5k+C) => 40 = e^(C) e^(-0.5k) => e^(-0.5k) = 40/65 => e^(-0.5k) = 8/13 => -0.5k = ln(8/13) => k = -2ln(8/13) => k = 0.97    …(2)

Substituting equation (1) into (2), we get;H-S = 65e^(-0.97t)  =>  H(t) = S + 65e^(-0.97t)

Therefore, the differential equation which describes the temperature of the object over time is;dH/dt = -k (H-S), where k = 0.97.

The solution to this differential equation is given by H(t) = S + 65e^(-0.97t).

The differential equation which describes the temperature of the object over time is;

dH/dt = -k (H-S), where k = 0.97. The solution to this differential equation is given by H(t) = S + 65e^(-0.97t).

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Deposition occurs when the agents (wind or water) of erosion lay down sediment. Deposition changes the shape of the land. Erosion, weathering, and deposition are at work everywhere on Earth. Gravity pulls everything toward the center of Earth causing rock and other materials to move downhill

Answer:

A: ≤ means less than OR equal to. < only means less than

B: 9

Explanation:

A: Because it would equal 19, and 19 is EQUAL than 19. 4(5) - 1 would equal 19, which is equal to 19, and not less than. ≤ means less than or equal to. < means less than. So its not true.

B: 47 - 2, 45. Then 5 x 9 equals 45. So 5 x 9 equals 45, then add 2 would equal 47.

Hope this helps <3

The inequality 4x − 1 ≤ 19 has less than or equal sign but the inequality 4x − 1 < 19 has only less than sign. The equation 5x + 2 = 47 is satisfied, for x = 9.

Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as well as is used to compare two statements.

Part A: Explain why x = 5 makes 4x − 1 ≤ 19 true but not 4x − 1 < 19.

The inequality 4x − 1 ≤ 19 is satisfied by 5 because the inequality has less than or equal sign but the inequality 4x − 1 < 19 has only less than sign so for x = 5, the value is equal to 19 which is not true.

Part B: The value from the set {6, 7, 8, 9, 10} makes the equation 5x + 2 = 47 true.

By simplifying the equation, then we have

5x + 2 = 47

     5x = 45

       x = 9

The equation is satisfied, for x = 9.

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The situation in which the object with greater kinetic energy can be identified is when the wildlife keeper and the rabbit are both in motion, and their velocities and masses are known. The object with greater kinetic energy would be the one with a higher mass and/or a higher velocity.

Kinetic energy is given by the equation KE = (1/2)mv^2, where m is the mass and v is the velocity of an object. In this scenario, if both the wildlife keeper and the rabbit are in motion, and their masses and velocities are known, we can calculate their respective kinetic energies using the equation. The object with the greater kinetic energy will have a larger product of mass and velocity, indicating higher energy of motion. Therefore, by comparing the calculated values, we can identify the object with greater kinetic energy.

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Answer:

d 0.431 seconds

Explanation:

\(y_0\) = Height of the table = 91.2 cm

a = g = Acceleration due to gravity = \(9.81\ \text{m/s}^2\)

\(u_y\) = Initial velocity in y axis = 0

y = Height of floor = 0

t = Time taken to fall to the floor

\(y=y_0+u_y+\dfrac{1}{2}at^2\\\Rightarrow t=\sqrt{2\dfrac{y-y_0-u_y}{a}}\\\Rightarrow t=\sqrt{2\times \dfrac{0-0.912-0}{-9.81}}\\\Rightarrow t=0.431\ \text{s}\)

The marble will be in the air for 0.431 seconds

When the aerodynamic center shifts from 0.25c to 0.5c during supersonic flight, it can negatively impact the stability of a conventional aircraft.

The aerodynamic center is the point along the chord line of an aircraft's wing where lift forces act. In subsonic flight, it is typically located around 0.25 times the chord length from the leading edge. However, as the aircraft transitions into supersonic speeds, shockwaves form on the wing's surface, causing the aerodynamic center to move backward to around 0.5 times the chord length.

This shift in the aerodynamic center affects stability because it changes the relative positions of the center of gravity (CG) and the aerodynamic center. In a stable aircraft, the CG should be positioned ahead of the aerodynamic center. However, if the aerodynamic center moves too far back, it can cause the CG to be located behind it, leading to reduced stability and potential control issues. Therefore, the shift in the aerodynamic center during supersonic flight requires careful design considerations to maintain stability and control.

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Answer:

Light has the unique property that it can be described in physics as both a wave and as a stream of particles called photons

Explanation:

Answer:

Light has the unique property that it can be described in physics as both a wave and as a stream of particles called photons

Explanation:

Answer:

The object will move if forces are unbalanced

A vector has two components: a magnitude and a direction. Magnitude is the length of the vector, and direction is the angle that the vector makes with the x-axis. We can use the Pythagorean theorem to find the magnitude of the vector a.Magnitude of vector a :

\(a = √(a_x² + a_y²)a_x = -5.00 ma_y = 9.00 m\)

Substituting the values in the formula, we get;

\(a = √((-5.00 m)² + (9.00 m)²)a = √(25.00 m² + 81.00 m²)a = √1066 m²a = 32.7 m\) (rounded to one decimal place)

Now, to find the direction of the vector, we can use trigonometry. The direction of the vector a is given by the angle that the vector makes with the positive x-axis. We can find this angle using the tangent function.

\(tan θ = a_y / a_xtan θ = (9.00 m) / (-5.00 m)θ = -60.3°\) (rounded to one decimal place)The angle is negative because it is measured clockwise from the positive x-axis. Therefore, the magnitude of the vector a is 32.7 m, and the direction of the vector is 60.3° clockwise from the positive x-axis.

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Answer: 2934.75 Joules

Explanation:

Potential energy can be defined as energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

P.E = mgh

Where P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per second square.

h represents the height measured in meters.

Given the following data;

Weight =645

Height = 4.55

P.E = mgh

But we know that weight = mg = 645N

Substituting into the equation, we have;

P.E = 645 • 4.55

P.E = 2934.75J

Potential energy, P.E = 2934.75 Joules.

The height of the building is approximately 1.26994 x 10^5 meters.

To determine the height of the building, we can use the formula for the period of a simple pendulum:

T = 2π√(L/g),

where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity.

In this case, the period T is the reciprocal of the frequency f:

T = 1/f.

Given that the frequency f is 1/6 Hz, we can calculate the period T:

T = 1/(1/6) = 6 seconds.

Next, we can rearrange the formula for the period to solve for the length L:

L = (T^2 * g) / (4π^2).

We can use the value of the acceleration due to gravity, g ≈ 9.8 m/s².

Substituting the known values:

L = (6^2 * 9.8) / (4π^2) ≈ 5.96 m.

Now, to find the height of the building, we subtract the length of the pendulum from the distance off the ground:

Height of the building = Distance off the ground - Length of the pendulum = 1.27 x 10^5 m - 5.96 m ≈ 1.26994 x 10^5 m.

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Answer: direct linear

Explanation:

Spacecraft have observed and measured them. The assertion provides the greatest justification for our certainty that the particles in Neptune's rings are quite tiny. Here option D is the correct answer.

The rings of Neptune are made up of a variety of particles, including dust, pebbles, and boulders. However, we can be sure that the particles in the rings of Neptune are very small because they have been observed and measured by spacecraft.

During the Voyager 2 flyby of Neptune in 1989, the spacecraft captured detailed images of the rings and collected data on the size, composition, and distribution of the particles. The data showed that the particles in the rings of Neptune range in size from tiny dust particles to larger boulder-sized chunks.

In addition to the Voyager 2 data, more recent observations by the Hubble Space Telescope have provided further evidence that the particles in the rings of Neptune are small. Hubble's observations have revealed clumps and arcs in the rings, which suggest that the particles are small and prone to clumping together due to their mutual gravitational attraction.

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Complete question:

Which of the following statements best explains why we can be sure that the particles in the rings of Neptune are very small?

A) They are made of a low-density material

B) They do not produce significant gravitational effects

C) They are composed of ice and rock fragments

D) They have been observed and measured by spacecraft

The answer is yes

They are isotopes.

Answer:

The average velocity from 5 to 6 seconds is -27 m/s