Two skaters stand facing each other. One skater’s mass is 60 kg, and the other’s mass is 72 kg. If the skaters push away from each other, the 60 kg skater travels at a lower momentum. their momentum is equal but opposite. their momentum doubles. their total momentum decreases

When a slow increase of force is applied to the lower string, the tension in the top string gradually increases due to the weight of the object it is supporting. As the tension in the top string increases, it eventually reaches a point where it can no longer handle the strain and breaks.

However, when a fast increase of force is applied, the tension in the lower string increases sharply and quickly. This sudden increase in tension is too much for the lower string to handle, causing it to snap before the top string can reach its breaking point. The top string is not subjected to the same rapid increase in tension, so it does not experience the same sudden force and is therefore able to withstand the strain for a longer period of time.

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Answer:

Explanation:

Newtons per metre per ampere or Tesla

The evidence for the statement that white light is a composite of all the colors of the spectrum is that white light can be separated into all colors of the spectrum using a prism, and then these colors can be recombined to make white light. Option a is correct answer.

This observation provides clear evidence that white light is made up of different colors because it can be separated into its individual colors. Furthermore, when these colors are combined, they form white light again. This process is known as recombination.

Option B is incorrect because mixing all the colors of the spectrum using pastel or watercolor does not create white light, but instead creates a brownish-grey color. Option C is also incorrect because there is clear evidence to support the statement. Option D is incorrect because squinting at white light does not reveal the separate colors of the spectrum, but can cause eye strain and damage. Therefore, the correct answer is A.

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According to the kinetic molecular theory, the temperature of a material is proportional to the total kinetic energy of its particles. The average kinetic energy for 1.00 mol he atoms at 300 K is 3741.3 J mol⁻¹.

The average energy possessed by the gas particles which are in motion is defined as the average kinetic energy. The average kinetic energy of the gas molecules is proportional to the absolute temperature of the gas.

The equation of average kinetic energy for one mole of any gas is:

Average kinetic energy = 3/2 nRT

3/2 × 1 × 8.314 × 300

= 3741.3 J mol⁻¹

Thus the average kinetic energy for 1.00 mol He atoms is 3741.3 J mol⁻¹.

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Our friend's approximate volume is approximately 0.110 m^3.

Buoyant force = density of water x volume of displaced water x gravity

Using these values, we can rearrange the equation to solve for the volume of displaced water:

Volume of displaced water = Buoyant force / (density of water x gravity)

Volume of displaced water = 1079.1 N / (1000 kg/m^3 x 9.81 m/s^2) ≈ 0.110 m^3

Therefore, our friend's approximate volume is approximately 0.110 m^3.

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In the International System of Units (SI), pressure or stress is measured in pascals (Pa). It bears Blaise Pascal's name, a mathematician and physicist. Applied force of one newton per square meter (N/m²) is equal to one pascal (P).

The force spread across an area is known as pressure. It is expressed in pascals in the system of meters, kilograms, and seconds. A pascal specifically measures the pressure that 1 N of force exerts on a 1 m² area at a straight angle. The following is how pressure can be described mathematically: pressure = force /area. A pascal is defined as follows if F is measured in newtons and A in square metres: 1 Pa = 1 N/m², also known as 1 N x m-² or 1 N per m². When measuring pressure changes in ultralow gas pressure applications like ventilation systems, a pascal comes in handy. The component is used by geophysicists to investigate tectonic forces on the plates of the Earth.

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Answer:

Momentum A measure of how hard it is to stop a moving object. Related to both mass and velocity.

An expression for the magnetic flux through the hemispherical surface of the bowl is [tex]\phi = 2 \pi B0R^2[/tex].

The magnetic flux through the hemispherical surface of the bowl can be calculated using the formula:

Φ = ∫B · dA

here Φ is magnetic flux,

B is magnetic field, and

dA is an element of the surface area.

For a hemispherical surface of radius R, we can express the surface area element in terms of polar coordinates as:

[tex]dA = R^2 sin\theta d\theta d\phi[/tex]

here,

[tex]\theta[/tex] ranges from 0 to [tex]\pi/2[/tex] and φ ranges from 0 to [tex]2\pi[/tex].

Since the magnetic field is uniform and in the positive z direction, we can express it as:

B = B0k

here k is the unit vector in the z direction.

these expressions into the formula for magnetic flux, we get:

Φ = ∫B · dA

= [tex]B0k · \int\R^2 sin\theta d\theta d\theta[/tex]

= [tex]B0k * (2\pi) * \int\0\pi/2 R^2 sin\theta d\thetaθ[/tex]

Solving the integral, we get:

[tex]Φ = B0k * (2\pi) * (-R^2 cos\theta ) ∣0\pi/2[/tex]

= [tex]B0k * (2/\pi) * R^2[/tex]

Therefore, the magnetic flux through the hemispherical surface of the bowl is given by [tex]\phi = 2\pi B0R^2[/tex], where B0 is the magnitude of the magnetic field and R is the radius of the bowl.

In summary, the expression for the magnetic flux through the hemispherical surface of the bowl is [tex]\phi = 2\pi B0R^2[/tex], where B0 is the magnitude of the magnetic field and R is the radius of the bowl.

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The force required to keep a 2 kg object moving to the right with a constant speed of 6.0 m/s is calculated to be 0 N.

It is given that the mass of the object m is 2 kg.

As the body is said to be moving with constant speed, its acceleration would be rate of change of velocity, which would be zero.

Acceleration a = 0

Now, let us calculate the force required to move the 2 kg object. From Newton's second law, we know the expression, F = m a.

where,

m is mass

a is acceleration

F = m a = 2 × 0 = 0 N

Thus, the required force to move the object in right direction is calculated to be 0 N.

The given options have inappropriate units. They should be in Newtons.

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Answer:

Explanation:

Electron

Mount Nevado,  Huascarán in Peru has the lowest gravitational acceleration, at 9.7639 m/s2.

What is gravitational acceleration ?

An object in free fall in a vacuum experiences gravitational acceleration. This is the gradual increase in speed brought on solely by the gravitational pull. No matter their masses or compositions, all bodies accelerate at the same rate in a vacuum; the measurement and analysis of these rates is known as gravimetry.

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Wringing of the hands is a physical gesture where you rub or squeeze your hands together in a state of distress, anxiety, or uncertainty.

Wringing of the hands is a physical manifestation of one's inner emotional state, and it can be a powerful indicator of a person's mental and emotional well-being.

It is a common nonverbal communication that often conveys nervousness, worry, or even guilt. This gesture is usually accompanied by other body language cues such as fidgeting, pacing, or avoiding eye contact.

Wringing of the hands can be a sign of emotional turmoil or intense stress, and it may be an attempt to release tension or to calm oneself down. It is often seen in situations of uncertainty or anxiety, such as before an important presentation or during a high-pressure meeting. It can also be a sign of remorse or guilt, especially when someone is trying to apologize or confess to wrongdoing.

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For a pair of objects, the center of mass is located at a point between the two objects where the total mass of the system is concentrated.

The center of mass is the average position of all the particles in the system, weighted by their respective masses.

The location of the center of mass depends on the relative masses and positions of the objects in the system. For example, if two objects have equal masses and are located at the same distance from each other, the center of mass will be located at the midpoint between them. However, if the objects have different masses or are located at different distances from each other, the center of mass will be located closer to the more massive or more distant object.

The concept of center of mass is important in many areas of physics, including mechanics, astronomy, and fluid dynamics. It is used to describe the motion of systems of particles, such as planets orbiting around a star or a projectile moving through the air.

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To convert pounds (lbs) to tons, you can use the conversion factor:1 ton = 2000 lbs, This means that one ton is equivalent to 2000 pounds of weight.

The pound (lb) is a unit of weight commonly used in the United States and other countries that still use the imperial system of units. In this system, the pound is defined as a unit of force or weight, and is equivalent to 16 ounces (oz).

However, it's worth noting that the pound is not a unit of mass, which is a measure of the amount of matter in an object, but rather a unit of weight, which is the force exerted on an object due to gravity. In other words, the weight of an object can vary depending on the strength of gravity in a particular location.

To convert from pounds to tons, divide the value in pounds by the conversion factor of 2000. For example, to convert 5000 pounds to tons:

5000 lbs = 5000/2000 tons

5000 lbs = 2.5 tons

Therefore, 5000 pounds is equivalent to 2.5 tons of weight.

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When discussing a magnetic world, the author apparently wants readers to imagine that they are D. Magnets.

The author in his book is trying to make the readers understand more about the magnet. This is how the author makes a correlative/causal relationships within the passage.

The author wants his readers to imagine if they are magnets, this is how they will be able to understand about the nature of the magnetic when the magnets are above the critical temperature. So, the option D is the correct answer to our question.

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To convert rpm to radians/sec, we should multiply the value in rpm with 0.104720 to get the value in rad/s.

Revolutions per minute rpm is a unit of frequency which is generally used to measure the number of turns in one minute.

1 rpm is said to be equal to 0.104720 rad/s.

1 revolution = 2π radians/min = 2π/60 rad/s

The rad/s is the SI unit of angular speed which is denoted by ω. Rad/s is the change in rotational or revolution of an object per second.

1 rad/sec = 9.549297 rpm

Thus, to convert from rpm to rad/s, we must multiply the number by 0.104720.

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The main distinction between the normal structures of RNA and DNA is that the former is single-stranded, while the latter is double-stranded.

Whereas DNA (deoxyribonucleic acid) is made up of two long strands of nucleotides that are twisted into a double helix shape, RNA (ribonucleic acid) is made up of a lengthy single-stranded chain of nucleotides.

The presence of the sugar ribose in RNA as opposed to the sugar deoxyribose in DNA is another distinction between the two molecules. Moreover, DNA has the nucleotide base thymine, whereas RNA has the nucleotide base uracil (U) (T). Because of these structural variations, RNA and DNA can perform a variety of diverse tasks in the cell, with DNA storing and conveying genetic information and RNA participating in processes like protein synthesis.

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A white household incandescent lightbulb produces a continuous spectrum.

Answer:

Assuming no air resistance and a constant downward vertical acceleration of 9.81 m/s2 due to gravity, Tarzan's speed at the bottom of the swing would be:

v = √(2 * 9.81 * 28.7 m / sin(2*33.0°)) = 45.0 m/s

Answer:

The kangaroo's acceleration after 5 seconds is 2.5 m/s^2

Explanation:

We can solve this problem using the formula for acceleration:

a = (v_f - v_i) / t

where a is acceleration, v_f is final velocity, v_i is initial velocity, and t is time.

First, we need to find the initial velocity in the southward direction. We know that the kangaroo is initially moving eastward, so its initial velocity in the southward direction is zero.

Next, we need to find the final velocity in the southward direction after 5 seconds. We can use the formula for the velocity of an object undergoing constant acceleration:

v_f = v_i + a*t

where v_i is initial velocity, a is acceleration, and t is time.

The kangaroo starts with an initial southward velocity of zero, and its velocity increases by 2.5 m/s each second for 5 seconds, so its final southward velocity is:

v_f = 0 + 2.5 * 5 = 12.5 m/s

Now we can use the formula for acceleration to find the kangaroo's acceleration after 5 seconds:

a = (v_f - v_i) / t = (12.5 - 0) / 5 = 2.5 m/s^2

Therefore, the kangaroo's acceleration after 5 seconds is 2.5 m/s^2.

"An advantage of subsurface (underground) coal mining is that it employs more people than surface mining techniques and thus creates more jobs." So, the correct option is A.

Subsurface mining techniques are used when material ores are too deep to reach using surface mining techniques. Subsurface mining has the benefit of causing much less ground disturbance than surface mining. In actuality, it disturbs less ground than a tenth of what surface mining does.

When the ore body is too deep to be mined effectively by open pit, subsurface mining has advantages. The orebody's grades or quality are high enough to pay expenses. Compared to open pit mining, underground mining has a smaller environmental impact.

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325.5 million gallons of beer will be freely consumed. So, the brews for the game require the usage of 6 million,145 thousand 132.74 bushels of barley, making the farmers of this grain the true MVP.

The acronyms "bsh" or "bu" are used to refer to a bushel, an imperial and US customary volume unit that is based on an older measurement of dry capacity.

The old bushel, which is equal to 2 kennings (obsolete), 4 pecks, or 8 dry gallons, was most frequently used for agricultural products like wheat. In common usage today, the volume is nominal, with bushels denoting a mass that varies depending on the commodity.

The term "bushel" is sometimes used to translate equivalent units in various measurement systems.

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97.4°F is equivalent to 36.33°C temperature. Using formula: °C = (°F - 32) x 5/9.

A measure of something's heat or coldness is its temperature. The most often used temperature scales globally are Celsius (°C) and Fahrenheit (°F), while there are other scales as well.

To convert Fahrenheit to Celsius, you need to subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9. This formula works because the freezing point of water is 32°F and 0°C, and the boiling point of water is 212°F and 100°C. So, a change of 1 degree Fahrenheit is equivalent to a change of 5/9 degree Celsius.

To convert 97.4°F to Celsius (°C), you can use the following formula:

°C = (°F - 32) x 5/9

Substituting 97.4 for °F in the formula, we get:

°C = (97.4 - 32) x 5/9 = 36.33

Therefore, 97.4°F is equivalent to 36.33°C.

It's important to note that when converting Fahrenheit to Celsius, the resulting Celsius temperature is often more precise with decimal places. In this case, the Celsius temperature is 36.33°C, which means that the temperature is between 36°C and 37°C.

To double-check your conversion, you can also use online temperature conversion tools or smartphone apps that are readily available and accurate.

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The density,  D = m/V = 45.93/0.0225 = 2041.33 g/cm3.

Density is a measure of mass per unit volume. It is defined as the mass of an object divided by its volume. Density is an important physical property of matter, as it affects the behavior of objects in different environments. Density is also a useful tool for measuring the concentration of a particular object or material. The higher the density of an object, the more mass it has for a given volume. Density is typically expressed in kilograms per cubic meter (kg/m3).

To calculate the density of the table tennis ball, we need to know the mass and volume of the ball. The mass of the table tennis ball is 2.7g, and the volume is 0.0067cm3. To calculate the density, we divide the mass by the volume, so D = m/V = 2.7/0.0067 = 402.99 g/cm3.

To calculate the density of the golf ball, we need to know the mass and volume of the ball. The mass of the golf ball is 45.93g, and the volume is 0.0225cm3. To calculate the density, we divide the mass by the volume, so D = m/V = 45.93/0.0225 = 2041.33 g/cm3.

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The current phase of the moon is a Full Moon, if two weeks have passed since the new moon.

The Moon's appearance changes as it orbits around the Earth, causing different amounts of its illuminated surface to be visible from our perspective on Earth. A Full Moon occurs when the entire face of the Moon is illuminated by the Sun, and it appears as a fully round and bright circle in the night sky.

Two weeks have passed since the new moon, which is the halfway point in the lunar cycle when the Moon is between the Earth and Sun and is not visible from Earth. Therefore, if we can see the entire face of the Moon shining, it must be a Full Moon.

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The magnitude of the normal force exerted by the bottom of the bucket on the phone is approximately 1.9404 N.

The normal force exerted by the bottom of the bucket on the phone is equal in magnitude but opposite in direction to the weight of the phone. We can find the weight of the phone using the formula:

weight = mass x gravitational acceleration

where the mass of the phone is 0.18 kg and the gravitational acceleration is approximately 9.8 m/s^2.

weight = 0.18 kg x 9.8 m/s^2

weight = 1.764 N

Since the bucket and phone are accelerating downward with an acceleration of 1.1 m/s^2, the net force acting on them must be:

net force = mass x acceleration

where the mass is the combined mass of the bucket and phone. We can calculate the net force as follows:

net force = (mass of bucket + mass of phone) x acceleration

net force = (m + 0.18 kg) x 1.1 m/s^2

We don't know the mass of the bucket, but we can assume it is much greater than the mass of the phone, so we can neglect the 0.18 kg term. Then we get:

net force ≈ m x 1.1 m/s^2

The normal force exerted by the bottom of the bucket on the phone is equal in magnitude but opposite in direction to the net force acting on the phone. Therefore, we can say:

normal force = net force = m x 1.1 m/s^2

Substituting the weight of the phone for m, we get:

normal force = 1.764 N x 1.1

normal force = 1.9404 N

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The potential energy stored in a spring (PE) is given by the equation PE = (1/2) kx², where k is the spring constant (a measure of how stiff the spring is) and x is the displacement of the spring from its equilibrium position.

This equation shows that the potential energy stored in a spring is proportional to the square of its displacement from equilibrium. As the spring is compressed or stretched, it stores potential energy that can be released when the spring is allowed to return to its equilibrium position. This equation is used in many applications, including mechanical engineering, physics, and even in the design of toys and gadgets.

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Answer:Acceleration

Explanation: The change in the speed or direction of an object is called Acceleration, Objects that are changing their speed or their direction are said to be accelerating.

Answer:

acceleration :)

Explanation:

any change

Answer:

Explanation:

The farther a celestial object (a mass in space) is from another, the less of a gravitational force that they have on each other.

The one quarter pounder quantity will be equivalent to the approximately 113.4 grams.

A pound or pound-mass is a unit of mass or weight used in the British Imperial and American customary systems of measurement. It is also a unit of measure, 1 pound = 16 ounces. So one quarter pound equals 4 ounces. A gram is a unit of mass or weight in the International System of Units. Hence, both are units of mass or weight. We have to convert quater pounder in grams. To convert from one unit to another always a constant number is used which is called conversion factor. Now, ounces to grams, we can use the conversion factor that one ounce = 28.3495 grams.

So, to calculate required grams are in a quarter pound, we can multiply 4 ounces by the conversion factor, quarter pounder = 4 ounces × 28.3495 grams/ounce = 113.398 grams. Hence, the required value is approximately 113.4 grams.

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