If a ball is moving at the velocity of 10 m/s east with a momentum of 50 kg m/s east, what is its mass?

C) fault-block mountain

Considering the definition of work, the correct answer is the second option: the work done in this case is 200 J.

Work is defined as the force that is applied on a body to move it from one point to another. When a force is applied, an energy transfer occurs. Then it can be said that work is energy in motion.

In the International System of Units, work is measured in Joule. Joule is equivalent to Newton per meter.

The work is equal to the product of the force by the distance and by the cosine of the angle that exists between the direction of the force and the direction that travels the point or the object that moves:

Work= distance× force × cosine (α)

In this case, the angle between the force and the displacement is 0 degrees. This is because the force and the displacement is in the horizontal direction.

The cosine of 0 degrees will have a value of 1. Then, you know:

Replacing in the definition of work:

Work= 10 meters× 20 N× cosine (0)

Solving:

Work= 10 meters× 20 N× 1

Work= 200 J

Finally, the work done in this case is 200 J.

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The amount of work done in moving the box is 200J (option B).

Work is a measure of energy expended in moving an object. It is most commonly calculated by multiplying force by the distance as follows:

Work done = Force × distance

It is said that no work is done if the object does not move.

According to this question, a large box is pushed 10 meters across a horizontal floor with a force of 20N. The work done is calculated as follows:

Work done = 20N × 10m

Work done = 200J

Therefore, 200J is the work done on the box.

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Answer:

See below

Explanation:

Assuming no resistance

DISTANCE =  1/2 a t^2

443 = 1/2 (9.81)t^2      Shows t = 9.5 seconds

The total energy which means the summation of potential energy and kinetic energy is  7.405 Joules.

To calculate the total energy of the ball, we need to consider its potential energy and kinetic energy.

Potential Energy:

The potential energy of an object at a certain height is given by the formula:

Potential Energy = mass × gravitational acceleration × height

Given:

mass (m) = 0.25 kg

gravitational acceleration (g) = 9.8 m/s² (approximate value on Earth)

height (h) = 2.5 m

Potential Energy = 0.25 kg × 9.8 m/s² × 2.5 m

Potential Energy = 6.125 Joules

Kinetic Energy:

When the ball reaches its maximum height, its velocity becomes zero. At this point, all of its initial kinetic energy is converted into potential energy. Therefore, the initial kinetic energy can be calculated using the formula:

Kinetic Energy = 0.5 × mass × velocity²

Given:

mass (m) = 0.25 kg

velocity (v) = 3.2 m/s

Kinetic Energy = 0.5 × 0.25 kg × (3.2 m/s)²

Kinetic Energy = 0.5 × 0.25 kg × 10.24 m²/s²

Kinetic Energy = 1.28 Joules

Total Energy:

The total energy of the ball is the sum of its potential energy and kinetic energy.

Total Energy = Potential Energy + Kinetic Energy

Total Energy = 6.125 Joules + 1.28 Joules

Total Energy = 7.405 Joules

Therefore, the total energy of the ball is 7.405 Joules.

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Answer:  Gravity is the force that keeps planets in orbit around the Sun. Gravity alone holds us to Earth's surface.

Planets have measurable properties, such as size, mass, density, and composition. A planet's size and mass determines its gravitational pull.

A planet's mass and size determines how strong its gravitational pull is.

Models can help us experiment with the motions of objects in space, which are determined by the gravitational pull between them.

Explanation:

Answer:

oxygen and bromine are both highly reactive. they are also both nonmetals

Answer:

\(F_A =5.625*10^1^6N\)

Explanation:

From the question we are told that

50,000 years ago,

A giant 4.5 107-kg meteor

180-m-deep hole

20,000 m/s

Generally for this problem the energy change is given as

       \(\triangle E=\frac{1}{2} mv^2 +mgd\)

Having the potential and kinetic energy in place

Mathematically  solving for Average force\(F_A\)

       \(\triangle E=F_a*d\)

\(F_A =\frac{1/2* 4.5*10^7(20,000)^2-kg+4.5*10^7*9.81*160}{160}\)

Therefore Average force \(F_A\) is given by

\(F_A =5.625*10^1^6N\)

Answer:

motion of molecules

Explanation:

I believe that is true

Answer:

8.56 s

Explanation:

distance / rate = time

178 m / 20.8 m/s = 8.56 s

The kinetic energy of the ball of 0.0520 kg with a velocity of 10 m/s is 2.6 J. The speed of the ball when it hits the ground will be 15.3 m/s.

Kinetic energy of an object is the energy generated by virtue of its motion. It is related to the mass and velocity as follows:

Ke = 1/2 mv²

Given that, m = 0.0520 kg

velocity v= 10 m/s

then Ke = 1/2 × 0.0520 Kg × (10 m/s )² = 2.6 J.

The kinetic energy of the ball when  it hits the ground will be equal to the potential energy. Then, the speed of the when it hits the ground is calculated as:

v =√2gh

v = √(2 × 9.8 m/s 12 m)

  = 15.3 m/s.

Therefore, the speed of the ball when it hits the ground will be 15.3 m/s.

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Answer:

Image result for State the general purpose of an experiment, using the terms dependent and independent variable

You can think of independent and dependent variables in terms of cause and effect: an independent variable is the variable you think is the cause, while a dependent variable is the effect. In an experiment, you manipulate the independent variable and measure the outcome in the dependent variable

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As a result, 80k is the closest value to the resistance of R1.

The equivalent resistance of two resistors, R1 and R2, connected in series, is 180 ohms. They have an equivalent resistance of 40 Ohms when they are connected in parallel.

The formula for the overall resistance of a series circuit can be used to get the resistance of R1:

Rr = R1 + R2

At the point where Rr is 80 Ω, we can see that R2 has a resistance of 20 Ω, so:

80 Ω = R1 + 20 Ω

Solving for R1, we get:

R1 = 60 Ω

As a result, 80k is the closest value to the resistance of R1.

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First, calculate the partial pressure of H2 by considering the total pressure:

where,

Ptot = 1.1bar

PH20 = 150Torr

Convert the previous values to atm:

Ptot = 1.1 bar = 1.085 atm

PH20 = 150 Torr = 0.197 atm

Then, for PH2 you obtain:

Next, use the following equation for ideal gases:

where,

V: volume = 55.65mL = 0.05565 L

R: gas constant = 0.082 atm*L/mol*K

T: temperature = 60 + 273 = 333K

P: partial pressure of H2 = 0.888atm

Solve the equation for n and replace the values of the other parameters:

Next, use the atomic weight to determine the mass of H2:

Hence, there are 0.0036 g of H2 collected above the water

How hard you must push down on the handle is by applying a force of 215.63 N

The moment of a force about a point is the turning effect of the force about that point.

The moment of a force M = Fd where

Now, for you to lift up the car, the moment due to your force about the fulcrum, M equals the moment due to the force on back of car. M'

M = M'

FD = F'd where

Making F subject of the formula,we have

F = F'd/D

Substituting the values of the variables into the equation,we have

F = F'd/D

F = 6900 N × 0.050 m/1.6 m

F = 345 Nm/1.6 m

F = 215.625 N

F ≅ 215.63 N

So, how hard you must push down on the handle is by applying a force of 215.63 N

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The person spent 100 Joules of energy to perform 100 Joules of work in pushing the stroller.

The law of conservation of energy states that, energy cannot be created or destroyed, only converted from one form to another.

Energy is a property of objects that enables them to do work. It can take many forms, such as kinetic energy (the energy of motion), potential energy (the energy of position), thermal energy (the energy associated with the temperature of an object), and many others.

Work, on the other hand, is the transfer of energy that occurs when a force is applied to an object and causes it to move a certain distance in the direction of the force.

In the case of the person pushing the stroller, they are applying a force to the stroller to move it forward. This force is causing the stroller to move a certain distance, which is the work being done.

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The critical angle for light traveling from the liquid back into the air is 42.0°.

The critical angle is the angle of incidence in the first medium (air) at which all of the light is refracted into the second medium (liquid).

The formula for the critical angle is:

sin(c) = n₂/n₁

where:

c is the critical angle

n₂ is the index of refraction of the second medium

n₁ is the index of refraction of the first medium

In this case:

n₁ = 1.00

n₂ = 1.33

Substituting these values into the formula:

sin(c) = 1.33/1.00

c = sin⁻¹(1.33/1.00)

c = 42.0°

Therefore, the critical angle for light traveling from the liquid back into the air is 42.0°.

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The main problems associated with nuclear power plants are safety concerns and nuclear waste disposal.

Safety concerns are a major issue with nuclear power plants due to the potential for accidents or malfunctions that could result in radiation leaks or explosions. These incidents can have devastating consequences for both human life and the environment.

Another significant problem with nuclear power plants is the disposal of nuclear waste. This waste can remain radioactive and dangerous for thousands of years, making it difficult to safely store and dispose of. Additionally, there is always the risk of accidents or breaches during the transportation and disposal of nuclear waste, which can further exacerbate safety concerns.

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X-axis represents the value of a particular characteristic; characteristics of an organism can include such traits as size and color.

A typical sort of distribution for a variable is the bell curve, commonly referred to as the normal distribution. The normal distribution graph, which has a symmetrical bell-shaped curve, is what gave rise to the phrase "bell curve."

The highest point on the curve, or the top of the bell, denotes the most likely outcome in a set of data (its mean, mode, and median), while all other potential outcomes are symmetrically distributed around the mean, resulting in a downward-sloping curve on each side of the peak. The bell curve's standard deviation provides information about its width.

The x-axis represents a variable's value, while the y-axis provides information about the likelihood that we will see that value.

I understand the question you are looking for is this:

In a bell-shaped curve, the x-axis (horizontal direction) of the graph represents which of the following?

a. The value of a particular characteristic; characteristics of an organism can include such traits as size and color.

b. The number of individuals

c. Time

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When more than three notes are sounded together, but the number of pitch names in the set is only three (arranged from alternate steps of the scale), a(n) **triad** is produced.

A triad is a chord that consists of three notes played simultaneously. It is constructed by taking every other note from a scale. For example, in the C major scale, the notes C, E, and G form a triad. These three notes are the first, third, and fifth notes of the scale, respectively. Triads are the foundation of many chords and are commonly used in music theory and composition.

The emf ℰx of the cell being measured in the potentiometer is 21.41 V. To calculate the emf ℰx of the cell being measured in a potentiometer, we can use the formula:
ℰx = ℰ standard * (rs + rx) / rx

Where ℰ standard is the emf of the standard cell, rs is the resistance in the potentiometer arm, and rx is the resistance of the resistor in series with the cell being measured.

Substituting the given values, we get:
ℰx = 12.0 * (2.300 + 5.100) / 5.100
ℰx = 12.0 * 1.7843
ℰx = 21.41 V

Therefore, the emf ℰx of the cell being measured in the potentiometer is 21.41 V. This means that the cell being measured has a higher emf than the standard cell. The potentiometer balances when the potential difference across the resistor in series with the cell being measured is equal to the potential difference across the potentiometer arm. This indicates that the two potential differences are equal and opposite, and cancel each other out, resulting in a balanced condition.

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If the moon is highest in the sky in the morning at 6:00am, it means that it is in its waning phase. This is because the moon rises later and later each day during its waning phase, eventually reaching its highest point in the morning.

After one week, the moon will have gone through approximately half of its cycle and will be in its third quarter phase. This is when the moon appears as a half-circle in the sky, with the right half illuminated. During this phase, the moon rises around midnight and sets around noon, making it visible during the morning hours. As the moon continues to wane, it will appear smaller and smaller in the sky until it reaches its new moon phase, which marks the beginning of a new lunar cycle. Understanding the phases of the moon is important for astronomers and anyone who wants to track the moon's position and movements in the sky.

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a). (2.0 x 10^9) x (0.1) = 2.0 x 10^8 cubic meters

b). The edge of a cube with that volume is

(2.0 x 10^8) ^ 1/3 = about 585 metres

(about 0.36 of a mile)

==> I'm pretty sure there are actually more than 2 billion adults in the world, since the total population is well over 7 billion now.

An object's loss in gravitational potential energy as it descends freely close to the surface of the earth is equal to its "kinetic energy."

Both in the scientific and common sense, climbing stairs as well as lifting objects count as work because they both involve exerting force against gravity. Energy undergoes a transition when work is done.

Thus, an object's loss in gravitational potential energy as it descends freely close to the surface of the earth is equal to its kinetic energy.

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The complete question is-

As an objects falls freely near earths surface the loss in gravitational potential energy of the objects is equal to its _______.

The speed acquired by the body is 49m/s and 59m/s respectively.

The speed can be calculated using the formula:

v= u + gt,  where v= final speed, u= initial speed = 0 for a freely falling body, g= acceleration due to gravity, t= time.

The speed acquired by a freely falling object 5 seconds after being dropped from a rest position is 49 m/s. This is because an object dropped from rest will accelerate at a rate of 9.8 m/s², so after 5 seconds it will be moving at a speed of 5 * 9.8 = 49 m/s.

The speed 6 seconds after being dropped from a rest position is approximately 59 m/s. This is because an object dropped from rest will accelerate at a rate of 9.8 m/s², so after 6 seconds it will be moving at a speed of 6 * 9.8 = 58.8 m/s.

In summary, the speed of an object dropped from rest 5 seconds after being dropped is 49 m/s, and 6 seconds after it is approximately 59 m/s.

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Answer:

Charges B and C are negative

Explanation:

• We are certain of a law of magnetism that states "Field lines move from positive charge to negative charge"

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Answer:

B and C are negative.

Explanation:

This is because according to the law of charges in electric field line it says that the lines forming the electric field move from the positive terminal to the negative terminal,hence making B and C be negative as the lines are moving into them.

Answer:

The main reason for this is the engineering and technology driven building construction in Chile than in Haiti

Explanation:

The main reason for this is the engineering and technology driven building construction in Chile than in Haiti. Most of the buildings in Haiti do not fit in the building byelaws norms as most of them were constructed in a short period of time with less engineering and at cheaper rate. While building in Chile were built adhering to the building codes and byelaws.

The base of the building is Chile were separated from each other using the “base isolation” technology and the were also more flexible as compared to the buildings in Haiti.  

The skyscrapers in Chile were constructed in a way that they can float on the arrangements of ball bearings and padded cylinders

The kinetic energy of balls is conserved, the collision is elastic.

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The value of the constant B so that y commutes with H is given by

B = 2m/q

The Hamiltonian for a particle in a constant magnetic field is given by

H = (1/2m) (p^2 + 2qBy)

where p is the momentum operator and B is the magnetic field strength. The momentum operator in the Landau gauge is given by

p = -iħ \frac{\partial}{\partial x} + Bi

where x is the position operator. In order for y to commute with H, we need to have

[y, H] = 0

Substituting the expressions for y, p, and H into this equation, we get

[y, (1/2m) (p^2 + 2qBy)] = 0

Expanding the commutator, we get

[y, p^2] + 2qB[y, B] = 0

Since y and p are both operators, they anticommute, so [y, p^2] = 0. The commutator [y, B] is equal to iħ, so we have

0 = 2qB iħ

Solve for B to get

B = 2m/q

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