The escape speed from the surface of Planet Zoroaster is 24.0 km/s. The planet has no atmosphere. A meteor far away from the planet moves at speed 2.00 km/s on a collision course with Zoroaster. How fast is the meteor going when it hits the surface of the planet? km/s

Answer:

encourage all attempts at reading, writing, and speaking

Explanation:

Answer: the length of the pendulum should be 1.4% longer

Explanation:

Given that;

when its noon, the clock reads 11:50 am,

i.e we have 10 minutes delay ⇒ 10min × 60 = 600secs

we know that in simple pendulum

T = 2π√(l/g)  

d means delay and c means correct;

24hrs = 86400 secs

Now

Td/Tc = (86400-600) / 86400  = 0.993 = [2π√(ld/gc)] / [2π√(ld/gc)] = √(ld/lc)

so ld/lc = 0.98616  

lc = 1.014 ld

lc/l.d = -1 + 1.014 = 0.014 × 100 = 1.4% longer

therefore the length of the pendulum should be 1.4% longer

Given:

Different theories of the model of the universe

To find:

which model of the universe is the most widely accepted and what does it predict

Explanation:

The Big Bang theory nicely explains the expansion of the universe.

Obviously, that the universe is expanding suggests that it was a good deal smaller in the past.

Hence, option (D) 'a closed universe in which the universe stops expanding but does not contract' is the correct one.

Answer:

If two vectors are equal, their components are also equal. For example, vector A and B both share the same x, y, and z components. By having the same components, the magnitude and direction does not change, which attest to how the vectors are identical.

So, if two vectors are equal, their components are also equal.

In vector mathematics, when two vectors are equal, it means their corresponding components are also equal. Thus, the magnitude and direction of the two vectors must be identical.

In the world of mathematics, specifically vector mathematics, if two vectors are equal, that means their corresponding components are also equal. A vector is typically described by its individual components which are its magnitude (size) and direction.

For example, if vector A and vector B are equal, and vector A = \((x_1, y_1)\) and vector B = \((x_2, y_2)\), then\(x_1 = x_2\) and \(y_1 = y_2\). This applies to vectors in two-dimensional and three-dimensional spaces as well. Therefore, equality in vectors involves the same direction and magnitude causing the corresponding components to be equal.

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A 51.2 N force F applied at an angle of 56.3 degrees above the radial line will produce a torque of 17.1 Nm on the pivot point P and a 14.07 Nm torque on the same point.

According to the selected pivot point, torque can be applied either clockwise or counterclockwise, as shown for points B and A, respectively, If the object is capable of rotating around point A, it will turn counterclockwise, hence the torque for the force will be displayed as anticlockwise with respect to A.

The following formula must be used to determine the torque caused by the force F on the pivot point P:

Torque is calculated as force times the angle between the force and the pivot point.

The torque is simply: since the force F is perpendicular to the rod.

Force times rod length equals torque.

Torque equals 51.2 N x 0.333 m, or 17 Nm.

B) We must figure out the perpendicular component of the force that affects the torque if the force F is applied at an angle of 56.3 degrees above the radial line. The force's perpendicular component is represented by:

Force x Sin = Perpendicular Force(angle)

Force perpendicular: 42.2 N x sin(56.3°) = 51.2 N

Hence, the torque applied to the pivot point P is:

Perpendicular force times rod length equals torque.

Torque equals 42.2 N x 0.333 m, or 14.07 Nm.

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The angle I can rightly be called the angle of reflection.

The incident ray, the reflected ray, and the normal all reside on the same plane, according to the angles of reflection. This suggests that reflection may occur when two angles are in the same plane as the normal.

The angle I and depicted can appropriately be referred to as the angle of reflection in light of the aforementioned information.

Lastly, it is obvious from the image that angle I is the angle of reflection.

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42 times must he repeat this exercise to burn off the energy in one slice of pizza.

What is energy?

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

Energy burn by the weightlifter = potential energy

Potential energy = mgh

Potential energy = 25.(9.8)(0.50)

Potential energy = 122.5 Joule.

Assume 25% of efficiency so energy burn = 122.5*25/100

energy burn = 30.625 joule

Number of times = 1260/30.625

Number of times = 42 times.

42 times must he repeat this exercise to burn off the energy in one slice of pizza.

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Answer:

here is explanation

Explanation:

Proxima Centauri The closest star to our own Is still 40,208,000,000,000 km away.

(OR ABOUT 268,770 AU)

The potential energy of the roller coaster is 176,400 J (joules).

The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.

In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).

Using the formula, we can calculate the potential energy:

PE = mgh

= (900 kg)(9.8 \(m/s^2\))(20 m)

= 176,400 J

Therefore, the potential energy of the roller coaster is 176,400 J (joules).

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Answer:

An electric current passing through a coil of wire gives a strong form of magnetism called electromagnetism. When the electric current passes through a single straight piece of wire the electromagnetism is weak.

Explanation:

I believe it is, but report if I'm wrong.

Answer:

I think means of transportation would be muscles and structural support would be bones. Removes waste could be kidneys instead. The others seem right. This is just what I think but I'm not sure

Answer:

I think it is movement height and mass.  Let me know if I am wrong.

Explanation:

The factors affecting the gravitation potential energy of an object are given as follows,

The mass of the object .

The height attained by the object.

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.

ME= PE+KE

As given in the problem we have to select all of the factors that influence the gravitational potential energy of an object,

The gravitational potential energy acquired by any object is given by the expression,

PE = mgh

where m is the mass, g is the gravity and h is the height

Thus, the gravitational potential energy depends upon the mass of the object as well as the height attained by the object.

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When thermal conduction is occurring within a solid, the particles vibrate faster. (option C)

When thermal conduction occurs within a solid, the particles of the solid undergo certain changes. Here is a step-by-step explanation:

Thermal conduction:

Thermal conduction is the transfer of heat energy within a solid material due to the movement of its particles. It occurs when there is a temperature gradient within the solid, where one end is at a higher temperature and the other end is at a lower temperature.

Particle motion:

In a solid material, the particles are closely packed and held in a fixed position by intermolecular forces. However, when thermal energy is supplied to the solid, the particles gain kinetic energy and begin to vibrate.

Increased kinetic energy:

The transfer of heat energy causes the particles to gain kinetic energy, which results in increased vibrational motion. The particles oscillate around their equilibrium positions more vigorously.

Vibrational motion:

As the particles vibrate faster, their amplitude of vibration increases. This increased vibrational motion allows the particles to pass on their kinetic energy to neighboring particles through collisions.

Transfer of heat:

The faster vibration of particles enables the transfer of heat energy from higher temperature regions to lower temperature regions within the solid. The particles with higher kinetic energy collide with neighboring particles, transferring the thermal energy.

In summary, during thermal conduction within a solid, the particles do not move in the same direction, move past each other, or slow down. Instead, they vibrate faster around their equilibrium positions, enabling the transfer of heat energy through the solid material.

Therefore, the correct answer is C. They vibrate faster.

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Answer:

The decay constant, or "lambda" (λ), is the rate at which a radioactive isotope decays. It is usually measured in units of inverse time, such as seconds. In this case, the decay constant can be calculated as follows:

16:42

λ = (ln(2)/3.57 x 106) x (5.78 x 1017) = 0.

Explanation:

Answer:

72km/hr

Explanation:

Speed in Km is usually represented in hours. so if the car is in constant velocity, and if the car travels 36km in 30 min then it travels 72km in 1 hour.

so the speed of the car is 72km/hr

College women athletes have earned money from their name, image, and likeness by endorsing products and services on their social media platforms.

One way that college women athletes have earned money from their name, image, and likeness (NIL) is through social media promotion. They can endorse various products and services on their social media platforms, getting paid for their promotion. This includes partnering with different companies who then pay them for their endorsement. For instance, athletes may be paid to post a picture of themselves using a product or to share a company's message with their followers.

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The loss of gravity has a significant impact on the human body. When in a state of weightlessness, the body's muscles and bones are not required to work as hard as they do on Earth.

As a result, astronauts in space experience muscle and bone loss, as well as a decrease in overall physical fitness. This is due to the fact that gravity is no longer providing the resistance needed for muscles and bones to maintain their strength.

This effect can be beneficial for astronauts on a mission to Mars. The journey to Mars takes several months, and astronauts will be in a state of weightlessness for a large portion of that time.

The muscle and bone loss that occurs in space can be used to the astronaut's advantage. When they land on Mars, the planet's gravity will be only about 38% of Earth's. As a result, the astronauts will be better able to adapt to the planet's lower gravity and carry out their mission.

Hence, It's important to note that these effects are not permanent, and scientists are currently researching ways to mitigate the negative effects of weightlessness and to develop exercise regimens and other countermeasures to help astronauts maintain their physical fitness during long-duration spaceflight.

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To find the mass in kilograms, you need to know the object's weight in newtons and the acceleration due to gravity. The formula for finding mass is mass = weight / acceleration due to gravity. So if you have an object with a weight of 100 N and the acceleration due to gravity is 9.8 m/s^2, the mass would be 10.204 kg.

The mass of the block is 0.025 kg or 25 g, when the spring has k = 28 N/m, and compresses 0.11 m before bringing the block to rest.

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At a divergent boundary, heat and pressure can cause metamorphism, magma can solidify to form igneous rocks, and sediments can accumulate and lithify to form sedimentary rocks. These three processes contribute to the formation of various types of rocks.

At a divergent boundary, three main processes occur that can lead to the formation of metamorphic, igneous, and sedimentary rocks:

1. Metamorphic rocks: Heat and pressure from the divergent boundary can cause existing rocks to be metamorphosed, or transformed, into new rocks with different textures and mineral compositions. This process is called metamorphism.

2. Igneous rocks: Magma, which is molten rock, can rise to the surface at a divergent boundary and cool and solidify to form igneous rocks. This process is called solidification or crystallization.

3. Sedimentary rocks: Sediments, such as sand and mud, can accumulate in the low-lying areas near a divergent boundary, such as in rift valleys or on the continental shelf. Over time, these sediments can be compacted and cemented together to form sedimentary rocks. This process is called lithification.

Hence, Heat and pressure at a divergent boundary can produce metamorphism, solidify magma to create igneous rocks, and accumulate and lithify sediment to create sedimentary rocks. Different sorts of rocks are formed as a result of these three processes.

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Answer:

The work done will be "763 J". A further explanation is given below.

Explanation:

The given values are:

\(Q_1=1000 \ J\)

Temperature,

\(T_1=900^{\circ} C\)

i.e,

    \(=1173\)

\(T_2=5^{\circ}C\)

i.e.,

    \(=278\)

As we know,

⇒  \(\eta =1-\frac{T_2}{T_1}\)

On substituting the values, we get

⇒     \(=1-\frac{278}{1173}\)

⇒     \(=\frac{1173-278}{1173}\)

⇒     \(=\frac{895}{1173}\)

⇒     \(=0.763\)

then,

⇒  \(W=\eta Q_1\)

⇒       \(=0.763\times 1000\)

⇒       \(=763 \ J\)

Answer:

The earliest known life-forms are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya (billion years ago), relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the Earth 4.54 Gya.

Explanation:

Is this what your looking for?

Answer:

1.0 volts

Explanation:

Given that:

The potential difference between the plate V = 10 V

C = 0.160 pF = 0.160 × 10⁻¹² F

The charge on the capacitor

Q = CV

Q = 0.160 × 10⁻¹² × 10

Q = 1.6 × 10⁻¹² C

It implies that the positive plate of capacitor has +1.6 × 10⁻¹² C charge while the negative plate has -1.6 × 10⁻¹² C

The number of excess electrons on the negative plate is:

\(n = \dfrac{q}{e}\)

\(n = \dfrac{-1.6\times 10^{-12}}{-1.6\times 10^{-19}}\)

\(n = 1.0 \times 10^7\)

Thus, electron deficiency on the positive plate is \(1.0 \times 10^7\)

The net negative charge that moves towards the positive plate is :

q = number of electrons moved × e

\(q = 1\times 10^6 \times (-1.6 \times 10^{-19})\)

\(q = -1.6 \times 10^{-13} \ C\)

Now, the net charge on the positive plate is:

\(q_{net} = q +q' \\ \\ q_{net} = (1.6 \times 10^{-12}) + (-1.6 \times 10^{-13})\)

\(q_{net} =1.44 \times 10^{-12} \ C\)

The potential difference between the plate;

\(V_{new} = \dfrac{q_{net} }{c}\)

\(V_{new} = \dfrac{1.44 \times 10^{-12} }{0.16 \times 10^{-12}}\)

\(V_{new} = 9.0 V\)

The reduction in potential difference

\(\Delta V = V - V_{new}\)

\(\Delta V = 10 - 9.0\)

\(\mathbf{\Delta V = 1.0 \ volts}\)

One of the equations of one-dimensional motion is vf = vo + gt.

One dimensional motion equation is an equation that describes the motion of an object along a straight line or in a single direction.

Examples of one dimensional motion include the following;

Equation of one dimension motion is given as;

vf = vo + gt

where;

Thus, one of the equations of one-dimensional motion is vf = vo + gt.

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The complete question is below:

One of the equations of one-dimensional motion is?

120V is the line-to-neutral voltage .

It is defined as the voltage of a power transmission circuit or distribution circuit up to the point of transformation or utilization.

The secondary line voltage is \(V_{L} = 280 V\)

The notation AC indicates that the current is an alternating current.

The given formula is \(V_{ph} = \frac{V_{L} }{\sqrt{3} }\)

Substitute  208 V into the formula

\(V_{ph} = \frac{V_{L} }{\sqrt{3} } \\\\V_{ph} = \frac{208V}{\sqrt{3} } \\\\= 120 (Approx)\)

So, the line-to-neutral voltage is 120 V.

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The speed of the cars as they stuck together is 16 m/s.

We know that the momentum after the Collison must be equal to the total momentum before the Collison and thus is what we call the principle of the conservation of linear momentum and that is what we are going to apply here so that it can help us to solve this problem at hand here.

Given that;

Momentum before Collison= Momentum after Collison

Then we have;

( 15,000 kg * 32.0 m/s) + (15,000 kg * 0 m/s) = (15,000 kg + 15,000 kg)v

v = ( 15,000 kg * 32.0 m/s) / (15,000 kg + 15,000 kg)

v = 16 m/s

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Answer:

Gravity

Explanation:

The ball will rise to a height of 1.836 m.

Gravitational potential energy of a body is the the amount of work done in  bringing that body from infinity to particular point on the gravitational field, without acceleration.

Here,

Mass of the ball thrown = 1.5 kg

Gravitational potential energy of the ball, U = 27 J

The equation of gravitational potential energy,

 U = mgh

 h = U/mg

 h = 27/(1.5x 9.8)

 h = 1.836 m

Hence,

The ball will rise to a height of 1.836 m.

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Answer:

The maximum elongation of the spring is 0.5 meters.

Explanation:

The statement is incorrect. The correct form is:

A 2-kg block is attached to a horizontal ideal spring with a spring constant of 200 newton per meter. When the spring has its equillibrium length, the block has a speed of 5 meters per second. What is the maximum elongation of the spring?

The block experiments a simple harmonic motion, where there are no non-conservative forces and the total energy is the sum of translational kinetic energy of the mass and the elastic potential energy of the spring. The maximum elongation of the spring is done when elastic potential energy reach its maximum. By the Principle of Energy Conservation, the maximum elastic potential energy is equal to the maximum translational kinetic energy, which corresponds to the instant when the mass reaches the equilibrium position. Then, the equation modelling the system is:

\(U_{max} = K_{max}\) (1)

Where:

\(U_{max}\) - Maximum elastic potential energy of the spring, measured in joules.

\(K_{max}\) - Maximum translational kinetic energy of the mass, measured in joules.

By definitions of the maximum elastic potential energy of the spring and the maximum translational kinetic energy of the mass, the expression above is expanded and simplified:

\(\frac{1}{2}\cdot k\cdot x_{max}^{2} = \frac{1}{2}\cdot m \cdot v_{max}^{2}\)

\(x_{max} = \sqrt{\frac{m}{k} }\cdot v_{max}\) (2)

Where:

\(x_{max}\) - Maximum elongation of the spring, measured in meters.

\(m\) - Mass, measured in kilograms.

\(k\) - Spring constant, measured in newtons per meter.

\(v_{max}\) - Maximum speed of the mass, measured in meters per second.

If we know that \(m = 2\,kg\), \(k = 200\,\frac{N}{m}\) and \(v_{max} = 5\,\frac{m}{s}\), then the maximum elongation of the spring is:

\(x_{max} = \sqrt{\frac{2\,kg}{200\,\frac{N}{m} } }\cdot \left(5\,\frac{m}{s} \right)\)

\(x_{max} = 0.5\,m\)

The maximum elongation of the spring is 0.5 meters.

Answer:

p_{f} = 6 m / s

Explanation:

We can solve this exercise using conservation of momentum. For this we define a system formed by the two balls, so that the forces during the collision have been intense and the moment is preserved

Initial instant. Before the crash

        p₀ = m v +0

Final moment. Right after the crash

        \(p_{f}\) = (m + m) v_{f}

how the moment is preserved

        p₀ = p_{f}

       m v = 2 m v_{f}

       v_{f} = v / 2

we calculate

       v_{f} = 12/2

       p_{f} = 6 m / s

Answer:

a. i. conducting wire

ii high-pass and low-pass filters

iii. Cobra-4 Xpert-link

iii. voltage source

b. Power generated is 3.6 W.

Explanation:

Ohm's law state that the current passing through a metallic conductor, e.g wire is directly proportional to the potential difference across its ends, provided temperature is constant.

i.e      V = IR

i. conducting wire

ii high-pass and low-pass filters

iii. Cobra-4 Xpert-link

iii. voltage source

b. Given that; V = 12 V and R = 40 Ohm's.

P = IV

From Ohm's law, I = \(\frac{V}{R}\)

So that;

P = \(\frac{V^{2} }{R}\)

   = \(\frac{12^{2} }{40}\)

  = \(\frac{144}{40}\)

 = 3.6 W

The power is 3.6 W.