adult cheetahs, the fastest of the great cats, have a mass of about 68 kg and have been clocked at up to 70 mph . part a how many joules of kinetic energy does such a swift cheetah have? express your answer in joules. activate to select the appropriates template from the following choices. operate up and down arrow for selection and press enter to choose the input value typeactivate to select the appropriates symbol from the following choices. operate up and down arrow for selection and press enter to choose the input value type k

The statement that is NOT an argument for Cygnus X-1's being a true black hole is d. X-rays from Cygnus X-1 vary on time scales as short as a millisecond.

What is a black hole?

A black hole is a celestial body that results from the death of a massive star. The black hole's gravitational pull is so strong that it prevents anything from escaping it, including light. As a result, black holes are invisible and can only be detected by the effects of their gravitational pull on other objects.

What is Cygnus X-1?

Cygnus X-1 is a binary star system located approximately 6,000 light-years away in the constellation Cygnus. The system contains a massive blue super giant star and a compact object that is believed to be a black hole, which orbits each other.

Cygnus X-1 was the first black hole discovered.The following are some arguments for Cygnus X-1's being a true black hole:

a. Cygnus X-1's mass is estimated to be about 10 solar masses

.b. Spectroscopic data suggests hot gas is flowing from the companion B star onto Cygnus X.1.

c. X-ray observations around the object support a temperature of several million . Among the options given in the question, d. X-rays from Cygnus X-1 vary on time scales as short as a millisecond is NOT an argument for Cygnus X-1's being a true black hole.

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The steel spoon contains molecules that are moving the fastest among the three spoons.

The spoon that feels the hottest to the touch indicates that its molecules have absorbed more heat energy from the hot water. The temperature of an object is related to the average kinetic energy of its molecules.

The kinetic energy of molecules is directly related to their speed of motion. Faster-moving molecules have higher kinetic energy compared to slower-moving molecules at the same temperature.

The steel spoon feels the hottest, suggesting that its molecules have gained the most kinetic energy from the hot water. Steel is a good conductor of heat, allowing it to absorb heat energy efficiently from the water. Its molecules gain kinetic energy, resulting in faster molecular motion.

The wooden spoon feels less hot than the steel spoon but hotter than the plastic spoon. Wood is a poorer conductor of heat compared to steel but still conducts heat better than plastic. Therefore, its molecules absorb some heat energy from the water, resulting in increased molecular motion and a hotter sensation when touched compared to the plastic spoon.

The plastic spoon feels the coolest because plastic is a relatively poor conductor of heat. Its molecules absorb less heat energy from the water, leading to slower molecular motion and a cooler sensation when touched.

In summary, the spoon that contains molecules moving the fastest is the steel spoon, as it absorbs the most heat energy from the hot water and has the highest temperature among the three spoons.

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Answer:

if I am not wrong I think it is 87.5%

Explanation:

i  hope it helped

Answer: 50°

Explanation:

Given the following :

Initial Velocity of bullet (U) = 87m/s

Time of travel (t) = 13.6s

Horizontal Distance traveled (S) = 760m

Therefore, the horizontal angle of projection of the bullet :

Using the second equation of motion:

S = ut + 0.5at^2

Where a = g = acceleration due to gravity, S = distance traveled, t= time taken and U = Initial Velocity.

The Angle of projection along the horizontal is represented as cosΘ

Acceleration due to gravity after the bullet has hit the ground = 0

Therefore, rewritten the equation :

S = ucosΘ * t + 0.5at^2

760 = 87 * Cosθ * 13.6 + 0.5(0)(13.6)^2

760 = 1183.2 * Cosθ + 0

Cosθ = 760 / 1183.2

Cosθ = 0.6423

Θ = cos^-1(0.6423)

Θ = 50.036460

Θ = 50°

Explanation:

There are several methods to identify and categorize objects in space but the 3 important are:

•Mass/Size

•Revolution

•Gravity

Example:

If you look at the planet Mars you will identify it by many methods but the basic way to indentify it is by looking at it's gravitational pull, Mass and size of the planet and the revolution of the planet around the star.

You can also identify them by looking at their elements present in it (like mars is red due to presence of high amount of iron/red soil in it), and Like Saturn is mostly identified by it's rings. It's not always about planets but it's also about the asteroids, stars, Natural satterlites of planets (like moon) and more.

Hope this helps you

Have a nice day :)

The length of the shadow cast by a person who is 1.82 m tall when a ray of sunlight forms a 24° angle with the ground is approximately 4.09 meters.

To solve this problem, we'll use trigonometry with the given angle and the height of the person to find the length of the shadow. We know that the angle between the sunlight and the ground is 24°, and the person is 1.82 m tall.

We can model this situation using a right triangle, where the person's height represents the opposite side, the length of the shadow represents the adjacent side, and the angle of elevation is 24°. To find the length of the shadow, we can use the tangent function, which is defined as the ratio of the opposite side to the adjacent side in a right triangle.

So, we have:

tan(24°) = opposite side (height of the person) / adjacent side (length of the shadow)

Now, we can plug in the height of the person:

tan(24°) = 1.82 m / length of the shadow

To find the length of the shadow, we can rearrange the equation and solve for it:

Length of the shadow = 1.82 m / tan(24°)

Using a calculator, we find that:

Length of the shadow ≈ 1.82 m / 0.4452 ≈ 4.09 m

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Major League Baseball games last an average of 190.885 minutes with a standard deviation that was not specified in the question. The standard deviation is a measure of how much the data deviates from the mean or average.

It can be used to determine the spread of the data and how closely the individual values cluster around the mean. Without the standard deviation, it is difficult to make any further conclusions about the duration of MLB games.

It seems that your question is incomplete, and I cannot provide a proper answer without the necessary information.

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Answer:

i don't really know the exact answer but i would say something like earthquakes or steam/excessive heat

Explanation:

This situation happens because radius of Jupiter is 10 times greater than radius of the Earth is why  a 500 N person on Earth weighs about 1500 N on the surface of Jupiter.

This is referred to as the body's relative mass or the quantity of matter contained by it and is also known as the force acting on a body due to gravity.

According to Newton's Law of Gravitation, weight is directly proportional to the mass of the planet and inversely proportional to the square of the radius of the planet which is why the difference in weight is as a result of the radius of Jupiter is 10 times being greater than radius of the Earth.

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Answer:

6 seconds is the best answer

It will take 6 seconds to the football in the air.

Velocity is the rate that the position of an item changes relative to time. When forces are applied to an item, it accelerates. This acceleration affects the velocity.

The object's initial velocity, vi, is its speed before acceleration changes it. The new velocity, which has increased for a while, is the final velocity, or vf.

Initial Velocity, denoted as u, is the velocity at time period t = 0. It is the speed at which motion first occurs. There are four equations for starting velocity: The starting velocity is expressed as u = v - at if time, acceleration, and final velocity are given.

Therefore, It will take 6 seconds to the football in the air.

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The average distance between a planet and the sun is given by the Semimajor axis of its elliptical orbit.

All the planets present in our Solar System travel around the Sun in an elliptical orbits. Semimajor axis of its elliptical orbit is the longest semidiameter or one half of the major axis of the elliptical orbit.

The distance between the Sun and the planets can be easily calculated using the Equation of Motion. The average distance between Earth and the Sun, which is about 150 million kilometers. The average distance between a planet and the sun is given by the Semimajor axis of its elliptical orbit.

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Ohm's law has three formulas, which are V = IR, I = V/R, and R = V/I.

Ohm's law describes the relationship between voltage, current, and resistance in an electrical circuit. The first formula, V = IR, states that the voltage across a resistor is directly proportional to the current flowing through it, with the constant of proportionality being the resistance of the resistor.

The second formula, I = V/R, expresses the current flowing through a resistor in terms of the voltage across it and the resistance of the resistor. Finally, the third formula, R = V/I, gives the resistance of a resistor in terms of the voltage across it and the current flowing through it. These formulas are commonly used in analyzing and designing electrical circuits.

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Answer:

Iron, You're Welcome :)

Answer:

iron

Explanation:

Explanation:

It is given that,

The Displacement x of particle moving in one dimension under the action of constant force is related to the time by equation as:

\(x=4t^3+3t^2-5t+2\)

Where,

x is in meters and t is in sec

We know that,

Velocity,

\(v=\dfrac{dx}{dt}\\\\v=\dfrac{d(4t^3+3t^2-5t+2)}{dt}\\\\v=12t^2+6t-5\)

(a) i. t = 2 s

\(v=12(2)^2+6(2)-5=55\ m/s\)

At t = 4 s

\(v=12(4)^2+6(4)-5=211\ m/s\)

(b) Acceleration,

\(a=\dfrac{dv}{dt}\\\\a=\dfrac{d(12t^2+6t-5)}{dt}\\\\a=24t+6\)

Pu t = 3 s in the above equation

So,

\(a=24(3)+6\\\\a=78\ m/s^2\)

Hence, this is the required solution.

The coefficient of static friction between the tires and the road is  0.16.

The coefficient of static friction between the tires and the road for the car to safely navigate the curve at the posted speed is calculated as follows;

Static friction = centripetal force

μmg = mv²/r

μ = ( v² ) / ( rg)

where;

The coefficient of static friction between the tires and the road is calculated as follows;

μ = ( 12² ) / ( 95 x 9.8)

μ  = 0.16

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Answer:

D.

Explanation:

Since the object is experiencing free fall, if you ignore air resistance, the time it will take the container to fall 300m to the ground is 7.82 seconds.

Any motion of a body in which gravity is the only force acting on it is referred to as free fall.

The object dropped from the airplane is experiencing free fall.

Ignoring air resistance, the only force acting on the container is the force of gravity which accelerate the container by a constant value.

The time taken for the object to reach the ground is determined using the formula of an object  experiencing free fall as given below:

s = ut + ¹/₂gt²

where

h is the height above the ground = 300 m

u is the initial vertical velocity of the container and is equal to zero since the object starts from rest.

g is the acceleration of gravity = 9.8 m/s²

t is the time = ?

The equation above becomes;

h = ¹/₂gt² since u is zero

Solving the equation for t:

t = √2h/g

t = √2 * 300 / 9.8

t = 7.82 seconds.

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Complete question:

A 415-kg container of food and water is dropped from an airplane at an altitude of 300m. First, consider the situation ignoring air resistance. Then calculate the more realistic situation involving a drag force provided by a parachute.

1. If you ignore air resistance, how long will it take the container to fall 300m to the ground?

the force on the charge is  μ₀I[QV×r]/[4πr³].

The force on a charge of +Q at point P with velocity →V is given by:

B = μ₀I[QV×r]/[4πr³]

Where,μ₀ is the permeability of free space, μ₀ = 4π×10⁻⁷ Tm/ICurrent carried by the very long straight wire, ICharge, QVelocity vector, →VForce, B

Therefore, the force on the charge is given by:

B = μ₀I[QV×r]/[4πr³]

where r is the distance between the wire and the point P.

Hence, the answer is μ₀I[QV×r]/[4πr³].

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The soil used for making pots by potters is commonly known as "Potter's Clay" or "Potter's Soil."

Characteristics of Potter's Clay:

1. Plasticity: Potter's clay has high plasticity, which means it can be easily molded and shaped into different forms without cracking or breaking.

2. Cohesiveness: It exhibits good cohesion, allowing the clay particles to stick together when moistened, forming a workable material.

3. Fine Particle Size: Potter's clay consists of fine particles that contribute to its plasticity and workability.

4. High Water Retention: It has the ability to retain water, which helps maintain the moisture content necessary for the clay to be shaped and formed.

5. Low Shrinkage: Potter's clay exhibits low shrinkage when it dries or undergoes firing, ensuring minimal distortion or cracking during the drying and firing processes.

6. Good Bonding Properties: The clay particles have the ability to bond together, creating a strong and durable structure once fired.

7. Good Porosity: After firing, the clay retains some porosity, allowing the pot to breathe and allowing for the exchange of air and moisture.

Answer:

C. POSITIVE

(Sorry if wrong)

Answer:

C positive

Explanation:

It keeps moving in a positive way over and over

Answer:

Explanation:

Centripetal acceleration's equation is:

\(a_c=\frac{v^2}{r}\) where v is the velocity of the object (moon II) and r is the radius. We have the radius, but we don't have the velocity, and we can't solve for acceleration until we do have it. Assuming moon II is a circle, or close enough to be called a circle, it has a circumference.

C = 2πr. If we can find the circumference of the circle, we can plug in the orbital period for the time, the circumference for the distance, and solve for velocity in d = rt. So let's do that and see what happens.

C = 2(3.14)(9.0 × 10⁷) and

C = d = 5.7 × 10⁸. Plugging in and solving for v:

\(5.7*10^8=v(3.0*10^5)\) and

v = 1.9 × 10³. That is the velocity we can use in the centripetal acceleration equation.

\(a_c=\frac{(1.9*10^3)^2}{9.0*10^7}\) and

\(a_c=.040\frac{m}{s^2}\)

These are fun!

The resistance stage of the general adaptation syndrome is after stress shocks your body.

After the initial impact of the stress, your body will enter the resistance stage of the general adaption syndrome. This is the period in which it will attempt to restore itself. During this stage, your heart rate and blood pressure will begin to recover to their pre-stress levels if you have successfully dealt with the stressful circumstance and the unpleasant event has been eliminated from your life.

Irritability, frustration, and a lack of attention are all indicators that the individual has entered the stage of resistance.

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Answer:

united states

Explanation:

give brainiest please

When the two-vehicle collides transformation of the energy is done in terms of kinetic energy.

According to the Law of Conservation of Energy, energy can neither be created nor destroyed, but it can be transferred from one form to another.

The total energy is the sum of all the energies present in the system. The potential energy in a system is due to its position in the system.

In the above problem, the Vehicle get collides so that the kinetic energy of the vehicle is converted into the kinetic energy of another vehicle the speed of the vehicle will reduce when they collide.

Momentum also gets conserved when the two vehicles collide.

Hence, the transformation of the energy is done in terms of kinetic energy.

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The anticipated number of miles Karl drives can be determined by using the line of fit equation and plugging in the value of 50 minutes for the independent variable. The resulting value will be the predicted number of miles driven by Karl in 50 minutes.

To explain further, a line of fit is a line that represents the trend of a set of data points in a scatter plot. In this case, the line of fit equation was likely derived from a set of data points that show the relationship between the amount of time Karl drives and the corresponding distance he covers. By using this equation, we can estimate the number of miles he drives for a given amount of time.

For example, if the line of fit equation is y = 0.8x + 5, where y represents the number of miles driven and x represents the time in minutes, we can plug in x = 50 and solve for y to get:

y = 0.8(50) + 5 = 45

Therefore, the anticipated number of miles Karl drives in 50 minutes is 45.

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Steve sees two bright stars in the sky one night. A few nights later Steve sees these two stars again, but they are closer together. This could be explained by the parallax effect.

The parallax effect could explain why Steve saw the two stars again but they were closer together. The parallax effect is the apparent shift in the position of an object when viewed from different angles. As the Earth moves in its orbit around the sun, the positions of stars in the sky appear to shift slightly due to the change in viewing angle.Parallax can be used to measure the distance to nearby stars.

Astronomers observe the position of a star against the background of more distant stars at two different times, when the Earth is on opposite sides of the Sun. By measuring the angle between the star's position and the background stars at each time, the velocity to the star can be calculated.

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1) The heat would flow from the hot chocolate to the ice cream.

2) The chocolate is going to decrease in its kinetic energy.

3) The ice cream would increase in its kinetic energy

4) The temperature of the hot chocolate would decrease while the temperature of the ice cream would increase

5) The temperature of the ice cream and the hot chocolate would stop changing when thermal equilibrium is attained.

Let us take our minds back to the kinetic theory of matter. We know that according to the kinetic theory matter, matter is composed of small particles that are in constant motion. We also define the temperature of the body as a measure of the average kinetic energy of the molecules of the body.

In this case, we can see that the chocolate is at a higher temperature thus its particles have a higher kinetic energy and the kinetic energy would flow from the hot chocolate to the cold ice cream. The kinetic energy of the ice cream would increase once it comes into contact with the hot chocolate.

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Different wavelengths of light result in various color perceptions. Whereas violet is perceived by the shortest wavelengths, red is perceived by the longest ones.

Frequency and wavelength are two important characteristics of a wave cycle. A further definition of "wavelength" is the distance between any two matching positions on adjacent waves. Frequency is another word for the number of waves that pass through a specific location in a specific amount of time.

The wavelength is the space between successive crests, whereas the frequency is the quantity of crests that impact the beach per second. The only distinction is that we do so when discussing light rather than water.

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