you are using a wrench to rotate a bolt around its center. consider all the forces in (figure 1), indicated by the arrows, to have the same magnitude. rank the scenarios in terms of the magnitude of torque applied, from smallest to largest torque.

Answer:

direction should be the answer

The average velocity in km/hr is 132.99km/hr

The first step is to convert 14.1 secs to hours

14.1/3600

= 0.00391 secs

Convert 520 m to km

520/1000

= 0.52 km

Velocity= displacement/time

0.52/0.00391

= 132.99km/hr

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The solutions are: The movement is 5 mm per year. The plate is 5,000 meters to the east. The Amur and Eurasian plates would collide, creating an ocean floor.

The rate of motion is in mm per year so you need to convert the distance it has moved to millimeters.

1 meter = 1,000 meters

125,000 will therefore be:

= 125,000 * 1,000

= 125,000,000 millimetersRate of motion = 125,000,000 / 25,000,000 years

= 5 mm/year

The plate is moving east and in 1 million years it would be:

= 1,000,000 * 5 mm/year

= 5,000,000 mm

n meters this is:

= 5,000,000 / 1,000

5,000 meters east

ecause the Amur and the Eurasian plates are moving apart, the ocean would have to fill up the space left which would lead to the development of a new oceanfloor.

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Answer: 5 mm/year, 5000 meters east, new ocean floor

Explanation:

Answer:

6.25 m/s

Explanation:

100÷16=6.25

The coefficient of friction between the ice and the puck is μ = 0.031 (option B).

1. To find the coefficient of friction (μ), we first need to find the acceleration (a) of the hockey puck.
2. Using the final velocity (vf), initial velocity (vi), and distance (d) given, we can find the acceleration using the following formula: vf^2 = vi^2 + 2ad
3. Rearrange the formula to solve for a: a = (vf^2 - vi^2) / (2d)
4. Plug in the given values: a = ((0)^2 - (7.00 m/s)^2) / (2 × 80.0 m) = -24.5 m/s^2 / 160 m = -0.153 m/s^2
5. Now we can find the coefficient of friction (μ) using the formula: μ = -a / g, where g is the acceleration due to gravity (9.81 m/s^2).
6. Calculate μ: μ = -(-0.153 m/s^2) / 9.81 m/s^2 = 0.0156 / 0.5 = 0.031

Hence, By calculating the acceleration and using it to find the coefficient of friction, we determined that the correct answer is μ = 0.031 (option B).

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Using Rayleigh's method, a set of dimensionless ratios that can be used to correlate our data is the ratio of initial velocity to the square root of the product of acceleration due to gravity and height.

In order to find a set of dimensionless ratios to correlate the data in the given experiment, we can use Rayleigh's method. Rayleigh's method involves selecting a set of relevant physical quantities and combining them in such a way that the resulting ratios are dimensionless.

In this case, the relevant physical quantities are:

To create dimensionless ratios, we can choose combinations of these quantities that eliminate the units. One possible set of dimensionless ratios can be:

Ratio of initial velocity to the square root of the product of acceleration due to gravity and height:

v / √(gH)

Ratio of radius to height:

r / H

These dimensionless ratios can be used to correlate the data obtained from the experiment. By plotting these ratios against each other or against other relevant parameters, it may be possible to identify relationships or trends in the data that can be described using these dimensionless ratios.

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Answer:

Transverse waves are always characterized by particle motion being perpendicular to wave motion. A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves.

Explanation:

The movement of the medium is different. In the longitudinal wave, the medium moves left to right, while in thee transverse wave, the medium moves vertically up and down. Longitudinal waves have a compression and rarefaction, while the transverse wave has a crest and a trough. Longitudinal waves have a pressure variation, transverse waves don't have pressure variation. Longitudinal waves can be propagated in solids, liquids and gases, transverse waves can only be propagated in solids and on the surfaces of liquids. Longitudinal waves have a change in density throughout the medium, transverse waves don't.

The  answer is that the statement is true only if the two forces are acting in the same direction. If the two forces are acting in opposite directions, then they cannot be combined into a single resultant force.

When two forces act on a body in the same direction, they can be combined into a single resultant force by simply adding their magnitudes. This is because the direction of the resultant force will be the same as the direction of the two forces.

However, when two forces act on a body in opposite directions, they cannot be simply added together. Instead, they will cancel each other out and create a net force of zero. In this case, the two forces cannot be combined into a single resultant force.

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Answer:

These two skaters have just pushed off against one another .One skater has twice the mass as the other. Which one willexperience the greater momentum?

Explanation:

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a) Gravitational potential energy possessed by the apple is E = 1.47 J.

b) Kinetic energy at the moment of collision of the apple is E = 1.47 J.

   The initial speed of the apple is 3.92 m/s.

c) The speed with which the apple hits the ground is 5.42 m/s.

a) Gravitational potential energy possessed by the apple:

Given that the apple weighs 100 g, located at a height of 1.5 m, the gravitational potential energy can be calculated as follows:

E = mgh = 0.1 kg × 9.8 m/s² × 1.5 m = 1.47 J

b) Kinetic energy at the moment of collision of the apple:

Kinetic energy can be calculated using the formula:

K.E. = 1/2 mv² where m is the mass of the apple and v is the velocity of the apple.

Initially, the apple is at rest. The potential energy of the apple transforms into kinetic energy as the apple falls.The potential energy calculated above is transformed into kinetic energy when the apple reaches the ground.

Therefore,

1.47 J = 1/2 × 0.1 kg × v²v² = 2 × 1.47 J/0.1 kgv² = 29.4v = √29.4v = 5.42 m/s

c) Speed with which the apple hits the ground:

The velocity of the apple can be calculated as follows:

v² = u² + 2gh

where u is the initial velocity of the apple and h is the height from which the apple falls.

u² = v² - 2gh = 5.42² - 2 × 9.8 × 1.5 = 15.37u = √15.37u = 3.92 m/s

Therefore, the initial speed of the apple is 3.92 m/s and the speed with which the apple hits the ground is 5.42 m/s.

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The statement is false "as the period of a wave increases the frequency increases" because the period of a wave and its frequency are inversely related.

Period and frequency are fundamental concepts in understanding waves. They describe different aspects of wave motion.

The period of a wave is defined as the time it takes for one complete cycle of the wave to pass a given point. It is measured in units of time, such as seconds.

The frequency of a wave represents the number of complete cycles of the wave that occur in one second. It is measured in units of hertz (Hz), which is equivalent to cycles per second.

The relationship between period and frequency is inverse. Mathematically, they are related by the equation:

Frequency = 1 / Period

This means that as the period increases (i.e., it takes more time for one cycle to complete), the frequency decreases because there are fewer cycles occurring in a given time interval. Conversely, if the period decreases (i.e., it takes less time for one cycle to complete), the frequency increases because more cycles occur in the same time interval.

The relationship between period and frequency holds true for all types of waves, including electromagnetic waves (such as light) and mechanical waves (such as sound or water waves).

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The reason why the planets orbit the Sun without crashing into it is because of (C) the force of gravity. Although there is no gravity in space, the Sun's gravity pulls the planets towards it. However, the planets are also moving, which causes their trajectories to bend around the Sun instead of leading directly into it. This means that they continue to move in a circular or elliptical orbit around the Sun. Therefore, option B is the correct answer. All astronomical objects do not move in circular orbits, as some may have elliptical or other types of trajectories.

This is because the planets have both gravitational attraction towards the Sun and their own velocity, which keeps them moving in their orbits. The combination of these two factors causes the planets to follow curved trajectories around the Sun, preventing them from crashing into it.

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Inducing magnetic properties on a substance means you are aligning the electrons to spin in the same direction, 2nd option.

The magnetic intensity is the magnetic field produced solely by the electric current flowing in a solenoid. The magnetic property of a material is induced by an external magnetic field. When a material is exposed to an external magnetic field, it becomes magnetized.

A strong magnetic field is produced when the majority of electrons in an atom spin in the same direction. The magnetic field's direction is determined by the direction of electron spin.

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The correct option is option A) It stays constant.The horizontal component of the velocity will remain constant with time after the projectile is fired.

Projectile motion is the movement of an object that has been thrown, launched, or shot into the air. The object is called a projectile, and its path is referred to as its trajectory. Projectile motion can be predicted and analyzed by physics, but it is not as straightforward as it may seem. The following are some of the properties of projectile motion: Acceleration due to gravity (9.8 m/s²) Act of the horizontal and vertical components of velocity (v) Path of the projectile in a parabolic shape. The horizontal component of the velocity will remain constant with time after the projectile is fired.

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Answer:

the mechanical advantage is 10

Explanation:

The computation of the mechanical advantage is as follows:

Mechanical advantage is

= Load ÷ Effort

where,

The Loan is equivalent to the weight i.e. 500 lb

And, the effort is equivalent to the force applied  i.e. 50lb

So, the mechanical advantage is

= 500 ÷ 50

= 10

Hence, the mechanical advantage is 10

Answer:

the object is changing direction

Explanation:

During straight line motion, On a velocity vs. time graph, any time the line crosses the x axis, the object is changing direction

Answer:

Astronomers led by Eduardo Bañados of the Max Planck Institute for Astronomy have discovered a gas cloud that contains information about an early phase of the galaxy and star formation, merely 850 million years after the Big Bang.

Explanation:

Answer: Gravity

Explanation: An object that moves because of the action of gravity alone is said to be free falling . If the object falls through an atmosphere, there is an additional drag force acting on the object and the physics involved with the motion of the object is more complex than in free fall.

Kepler's third law, p^2 = a^3, means that the square of the total time period of a planet's revolution the sun is directly proportional to the cube of its mean distance from the Sun.

Kepler's third law is also known as the law of periods. It states that the shorter the orbit of the planet around the sun, the shorter will be its time period. These  equation have helped to calculate the total time period of the planets of the Solar system.

Using Newton's law of gravitation, we can simplify the above equation as:

                    P^2 = 4π^2 /[G(M1+ M2)] × a^3

Here M1 and M2 are the masses of the revolving objects.

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Answer:

zero.

Explanation:

The force required to maintain an object at a constant velocity in free space is equal to zero (0).

When an object is moving at a constant velocity in free space, it means that there is no net force acting on the object. According to Newton's first law of motion (the law of inertia), an object in motion will remain in motion with a constant velocity unless acted upon by an external force.

In the absence of any external forces, such as friction or gravitational forces, there is no force required to maintain the object's motion. The object will continue moving in a straight line at a constant speed without the need for any additional force. This is because there is no opposing force to change its velocity or direction.

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ANSWER

EXPLANATION

b) We want to find the change in gravitational potential energy of the lorry.

The change in gravitational potential energy is given by:

where m = mass of the lorry

g = acceleration due to gravity

Δh = change in height

Let us make a sketch of the problem:

To find the change in height, we have to apply the trigonometric ratios:

Therefore, the change in height is:

Therefore, the change in gravitational potential energy of the lorry is:

That is the answer.

The converse of the statement "No pilots are mechanics" is No mechanics are pilots.

Hence, the correct option is A.

The converse of a statement switches the subject and the predicate and negates both. In the original statement, the subject is "pilots" and the predicate is "mechanics."

The original statement states that there is no overlap between pilots and mechanics. In the converse statement, the subject becomes "mechanics" and the predicate becomes "pilots," and it still states that there is no overlap between the two groups.

Therefore, The converse of the statement "No pilots are mechanics" is No mechanics are pilots.

Hence, the correct option is A.

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Exposure to a sound of 50,000 Hz at 180 decibels would have severe and potentially life-threatening consequences for a human being. Here's what would happen:

Hearing Damage: The human threshold for pain from sound is typically around 120-130 decibels. Exposure to a sound level of 180 decibels is significantly higher and can cause immediate and irreversible damage to the ears.

Physical Discomfort and Pain: Sound waves at such high intensity can cause intense physical discomfort, pain, and even physical harm. The high pressure variations caused by the sound can lead to damage to delicate tissues.

Tissue Damage: Extremely loud sounds can also cause damage to other parts of the body, not just the ears. The high sound pressure levels can cause physical damage to internal organs, blood vessels, and tissues.

Psychological Impact: Exposure to a sound at such a high volume can be psychologically distressing and traumatic. It can lead to a state of panic, disorientation, and extreme anxiety.

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8.96 μA is current during this inflow of charge in a meter of axon when nerve cells transmit electric signals through their long tubular axons.

Given that;

Number of Na + = 5.6×10¹¹ ions,t=10 ms=10×10⁻³ s

The Current passes through a meter of nerve axon is:

The Charge passes through the axon:

Q = NIeI

= 5.6 × 10¹¹ ×I −1.6×10⁻¹⁹ C ∣

= 8.96 x 10⁻⁸ C

Current that flows through the axon is determined by:

I = Q/t

= 8.96 x 10⁻⁸ C / 10 x 10⁻³ s

= 8.96 x 10⁻⁶ C/s

= 8.96 x 10⁻⁶ A

= 8.96 μA

Electric current is the flow of charged particles through a conductor, such as a wire, due to the application of a voltage difference between two points in the circuit. The flow of current can be influenced by factors such as the resistance of the material, the temperature, and the electric field.

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The equilibrant force is equal in magnitude and opposite in direction to the resultant force.

Since the resultant force is 10 N in the positive y axis direction (North), the equilibrant force is 10 N in the negative y axis direction (South). An equilibrant force is a force that can balance or counteract the effect of other forces acting on an object.

It has the same magnitude as the resultant force, but it acts in the opposite direction, resulting in a state of equilibrium where the net force acting on the object is zero.

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The maximum orbital angular momentum for an electron in a hydrogen atom with a principal quantum number of 26 is 25.

To calculate the magnitude of the maximum orbital angular momentum Lmax for an electron in a hydrogen atom for states with a principal quantum number of 26, we can use the formula Lmax = n - 1, where n is the principal quantum number.

Therefore, for n = 26, Lmax = 26 - 1 = 25.

This means that the maximum orbital angular momentum for an electron in a hydrogen atom with a principal quantum number of 26 is 25. This value is significant because it determines the possible energy levels of the electron in the hydrogen atom and therefore, the spectral lines emitted by the atom.

The hydrogen atom is a simple atomic system with only one electron orbiting a single proton. The magnitude of the maximum orbital angular momentum for an electron in a hydrogen atom depends on the principal quantum number, which determines the energy of the electron and the size of its orbit.

the maximum orbital angular momentum for an electron in a hydrogen atom with a principal quantum number of 26 is 25.

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Answer:

The energy that can be stored in the capacitor is 239 nJ

Explanation:

We first calculate the capacitance of each material. Let C₁ be the capacitance of pyrex glass and C₂ be the capacitance of polystyrene.

C₁ = κ₁ε₀A/d where κ₁ = dielectric constant of pyrex glass = 5, A = area of plates = L² where L = length of square plate = 7.40 cm = 7.40 × 10⁻² m and d = thickness of pyrex slab = 1.60 mm = 1.60 × 10⁻³ m and ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m

C₁ = κ₁ε₀A/d = κ₁ε₀L²/d = 5 × 8.854 × 10⁻¹² F/m × (7.40 × 10⁻² m)²/1.60 × 10⁻³ m = 2424.2252/1.60 × 10⁻¹¹ F = 1515.14 × 10⁻¹¹ F = 15.2 × 10⁻⁹ F = 15.2 nF

C₂ = κ₂ε₀A/d where κ₂ = dielectric constant of polystyrene = 3, A = area of plates = L² where L = length of square plate = 7.40 cm = 7.40 × 10⁻² m and d = thickness of polystyrene slab = 1.60 mm = 1.60 × 10⁻³ m and ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m

C₁ = κ₁ε₀A/d = κ₁ε₀L²/d = 3 × 8.854 × 10⁻¹² F/m × (7.40 × 10⁻² m)²/1.60 × 10⁻³ m = 1454.5351/1.60 × 10⁻¹¹ F = 909.08 × 10⁻¹¹ F = 9.09 × 10⁻⁹ F = 9.09 nF

Since the capacitors are in series, we find their effective capacitance C from

1/C = 1/C₁ + 1/C₂

C = C₁C₂/(C₁ + C₂)

= 15.2 × 10⁻⁹ F × 9.09 × 10⁻⁹ F/(15.2 × 10⁻⁹ F + 9.09 × 10⁻⁹ F)

= 138.168 × 10⁻¹⁸/24.29 × 10⁻⁹ F

= 5.69 × 10⁻⁹ F

The amount of electrical energy stored in a capacitor is given by W = 1/2CV² where C = capacitance and v = voltage applied. Now C = 5.69 × 10⁻⁹ F and V = 84.0 V for this capacitor

So W = 1/2 × 5.69 × 10⁻⁹ F × 84.0 V

= 238.98 × 10⁻⁹ J

≅ 239 × 10⁻⁹ J

= 239 nJ

So the energy that can be stored in the capacitor is 239 nJ

Answer:

G M m / R^2      attraction of Jupiter to sun where m is mass of Jupiter

m V^2 / R      centripetal force acting on Jupiter

R = G M / V^2

The radius would be unchanged, and its orbit would be unchanged

An electrical circuit with a voltage difference of 120 V and a current of more than 15 A has an associated power of 1800 watts.

The pace at which work is completed or energy is converted into an electrical circuit is known as the electric power. It can also be described as a measurement of the amount of energy expended performing labor or moving over time. It is denoted by the letter P.

Electric power can be estimated by multiplying the electric current and voltage differential. Watt is the SI unit of power (w).

The quantity of electricity flowing from hot to neutral is regulated by ground fault circuit interrupters. The line trips if there is a difference. The Ground Fault Circuit Interrupters detect a mismatch as small as 4 or 5 milliamps, and they can become operational as quickly as one thirty second.

P = V.

equal I P = 120V * 15A .

P= 1800 watts

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The correct question is

A circuit breaker is tripped when the current in the circuit is greater than 15 A. If the voltage difference is120 V, what is the power and used when the circuit breaker is tripped?

Explanation:

In a parallel circuit, each lamp is connected to the power source independently, meaning that the lamps are not directly connected to each other. Therefore, if one lamp filament breaks in this setup, the other three lamps will continue to work unaffected.

When the filament of one lamp breaks, it essentially opens the circuit for that particular lamp. However, the remaining lamps are still connected in parallel, so the current can flow through them independently. The other lamps will continue to receive electricity from the power source and light up normally.

This behavior is a characteristic of parallel circuits, where each component has its own individual connection to the power source. If the lamps were connected in series, the situation would be different. In a series circuit, a break in one lamp's filament would interrupt the flow of current throughout the entire circuit, and all the lamps would go out.