Which formula can be used to find velocity if kinetic energy and mass are known? v = The square root of one half times K E and mass. v = Square Root of StartFraction 2 times m over K E EndFraction. v = Square Root of K E times m v = Square Root of StartFraction 2 times K E over m EndFraction.

Torque is a measure of the turning force applied to an object about a rotational axis. It is calculated as the product of the force applied to the object and the distance from the axis of rotation at which the force is applied.

Use the equation slope = mod to calculate the unknown mass (mo) for parcels A and C, setting d = 1.0 m, and parcels G and H, setting d = 1.5 m.

Record all data, tables, and four graphs for analysis.

The experiment demonstrates the application of torque in determining unknown masses and provides valuable insights into the concept of torque in physics.

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The missing species of the nuclear reaction obtained is ³⁰₁₅P

The missing species of the equation can be obtain as follow:

Now, we can obtain the value of x, y and Z as follow:

²⁷₁₃Al + ⁴₂He -> ʸₓZ + ¹₀n

For x

13 + 2 = x + 0

15 = x

x = 15

For y

27 + 4 = y + 1

31 = y + 1

Collect like terms

y = 31 - 1

y = 30

For Z

ʸₓZ => ³⁰₁₅Z

From the period table, the element with atomic number of 15 is phosphorus, P. Thus, we have

ʸₓZ => ³⁰₁₅Z => ³⁰₁₅P

Therefore, we can write the complete equation as:

²⁷₁₃Al + ⁴₂He -> ³⁰₁₅P + ¹₀n

Thus, the missing species is ³⁰₁₅P

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Answer:

It will be cut in half

Explanation:

The diffraction of a slit is given by the formula

a sin θ = m where

a = width of the slit,

λ = wavelength and

m = integer that determines the order of diffraction.

Next we divide both sides by a, we have

sin θ = m λ / a

Also, recall that

a’ = 2 a

Then we substitute in the previous equation

2asin θ' = m λ, if divide by 2a, we have

sin θ' = (m λ / 2a).

Now again, from the first equation, we said that sin θ = m λ / a, so we substitute

sin θ ’= sin θ / 2

Then we use trigonometry to find the width, we say

tan θ = y / L

Since the angle is small, we then have

tan θ = sin θ / cos θ

tan θ = sin θ, this then means that

sin θ = y / L

we will then substitute

y’ / L = y/L 1/2

y' = y / 2

this means that when the slit width is doubled the pattern width will then be halved

Saturation of colors in light waves is determined by the amplitude or intensity of the light, affecting color vibrancy and purity.

The saturation of colors in a light wave is determined by the amplitude or intensity of the light wave. Saturation refers to the purity or intensity of a specific color, indicating how vibrant or dull the color appears. In the context of light waves, it specifically refers to the degree to which a color appears vivid and free from a mixture of other colors.

The perception of color saturation is closely related to the amplitude of the light wave. Amplitude represents the maximum displacement of particles in the medium through which the wave is propagating. In the case of light waves, the amplitude corresponds to the intensity or brightness of the light. A higher amplitude leads to a more intense light wave, resulting in brighter and more saturated colors.

To understand this concept further, we can consider the RGB color model commonly used in digital displays. In this model, colors are produced by combining varying intensities of red, green, and blue light. The saturation of a particular color is determined by the amplitude of the corresponding light wave. Higher amplitudes result in more intense primary colors and, therefore, greater saturation.

However, it's important to note that color perception is also influenced by factors such as the color spectrum, the human visual system, and individual preferences. Additionally, factors like ambient lighting conditions, color mixing, and color reproduction technologies can affect the perceived saturation of colors.

In summary, the saturation of colors in a light wave is primarily determined by the amplitude or intensity of the light. Higher amplitudes result in more vibrant and saturated colors, while lower amplitudes lead to duller or desaturated colors. However, other factors can also influence color perception, and the specific color model or context may further affect how saturation is perceived.

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Answer:

Proving LHS=RHS

Explanation:

Given

p=dgh

Multiplying by 0 on both sides of the equations

p×0=dgh×0

0=0

:- Hence proved

The time taken to fire the rocket at the given thrust is 1,382.3 seconds.

The centripetal acceleration of the wheel is calculated by applying the following formula.

F = ma

where;

a = F / m

a = (100 N) / (5 x 10⁵)

a = 2 x 10⁻⁴ m/s²

The velocity of the wheel is calculated as follows;

a = v²/r

where;

v² = ar

v = √ (ar)

v = √ (2 x 10⁻⁴ x 11 )

v = 0.05 m/s

The time of motion of the motion of the rockets at the given speed is calculated as;

v = 2πr / T

T = 2πr / v

T = (2π x 11) / (0.05)

T = 1,382.3 seconds

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Answer:

F = G M1 M2 / R^2      attractive force

F = 6.67 * 10E-11 * 5.683 * 10E26 * 1.345 * 10E23 / (1.222 * 106)^2  N

F = 6.67 * 5.683 * 1.345 / 1.493 * 10E26 N = 3.414 * 10E27 N

Answer:

Data

Explanation:

Data is factual information not subject to bias.

This ultimately implies that, data connotes fact, thus, it is an information that is credible, accurate, a statement of truth, evidential and proven.

In Computer programming, a data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.

In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.

This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.

1.47  is the coefficient of static friction between a mass of 0.75kg and a horizontal surface

m=0.75 KG

g=9.8 M/S^2

N=5 N

F=µN

µ=F/N

µ=mg/N

µ=0.75×9.8÷5

µ=1.47

We are physically surrounded with friction. An object moving along a path is resisted by a force known as static friction. Lastly, use an easy example to comprehend it. Think about the activity we perform frequently called walking. We are constantly in contact with the floor while we work. Motion presses against the ground as we move it backward, and we then advance our feet.

One key concept to be aware of in order to minimize friction is the fact that it operates in the opposite direction from relative motion. This phenomena may be useful for reducing the speed of the action until it eventually comes to a stop.

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To create an electromagnetic induction portfolio, we will conduct an experiment to demonstrate the phenomenon of electromagnetic induction. The setup which will be used is explained as paragraph below.

1. A copper coil will be wound around a cylindrical core made of a non-magnetic material like wood or plastic. The number of turns of the coil will be recorded for future reference.

2. A magnet will be attached to one end of a metal rod, which can be inserted into the center of the coil.

3. A galvanometer will be connected in series with the coil to detect any current flowing through the circuit.

4. A power supply will be used to provide a constant voltage to the circuit.

5. A timer will be used to record the time taken for the magnet to move through the coil.

The independent variable in this experiment is the speed at which the magnet is moved through the coil. We will vary the speed of the magnet by changing the time taken for it to move through the coil.

The dependent variable in this experiment is the voltage induced in the coil. The voltage induced will depend on the speed at which the magnet is moved through the coil.

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4764 joule is potential energy associated with the spring-nugget system

Potential energy ,P =mgh

mass= 286 kg

g=9.8 m/s^2

h= 1.70 m

P =mgh

P=×286 kg×9.8×1.70

P=4764 joule

Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is squeezed or extended, its potential energy increases. If a steel ball is lifted above the ground as opposed to falling to the ground, it has higher potential energy. It is capable of performing more work when raised. Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the elevated ball has greater potential energy as they get further apart.

Potential energy develops in systems having components whose configurations, or relative positions, determine the amount of the forces they apply to one another.

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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:

Option C and D only

Explanation:

Option A is incorrect  because refractive index of a material is the ratio of speed of light in vacuum to the speed of light in a any given medium

Option B is correct as the speed of light in vacuum is always greater than the speed of light in any given medium.

Option C is correct

Option D is incorrect

Option E is incorrect because the denser the medium the more is the refractive index. Water is denser than air, hence it should have more refractive index as compared to that of air.

Answer:

neon and argon

Explanation:

because they are inert gas

Answer:30 km/hr2 is the exal

Explanation:

Answer:

A. The shorter the distance the greater the force, so now the force would have increased because they haven't moved away from each other.

B. The force would decrease because they are now further apart.

C. the force wouldn't be as great as before but the force would still be high because they are not far apart from each other.

I hope this helps you( ◜‿◝ )♡

The speed of the particle when it enters the magnetic-field region is 120,000 m/s.

Magnetic force on the particle is given as;

F = qvB

where;

From Newton's second law, force on an object is given as;

F = ma

where;

ma = qvB

v = ma/qB

v = (3 x 10⁻² x 12)/(3 x 10⁻⁶ x 1)

v = 120,000 m/s

Thus, the speed of the particle when it enters the magnetic-field region is 120,000 m/s.

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The torque 0,1 acting on the meter stick due to 1 is 3.92Nm.

The torque 0,2 acting on the meter stick due to 1 is 20.94Nm.

The torque 0,stick due to weight of meter stick is 2.45Nm.

The torque 0,pivot acting due to pivot is 0.

The rotating equivalent of force is torque. The moment of force is another name for it (also abbreviated to moment). It illustrates how a force can cause a change in the body's rotational motion.

The definition of torque is the product of the force's perpendicular component's magnitude and the force's line of action's separation from the point being measured. Torque can also be understood in terms of the law of conservation of energy.

Using the formula:

τ= r × F

where,

τ is the torque,

F is the force and,

r is the distance of the line of action of a force from the point around which torque is being determined.

Substituting the values and solving for torque:

The torque 0,1 acting on the meter stick due to 1 is 3.92Nm.

The torque 0,2 acting on the meter stick due to 1 is 20.94Nm.

The torque 0,stick due to weight of meter stick is 2.45Nm.

The torque 0,pivot acting due to pivot is 0.

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Answer:

check the image above please

Answer:

• Magnetic flux linkage is the magnetic flux density multiplied with the area projected perpendicularly or normally to the magnetic field line passing through a coil of 1 turn.

Explanation:

\({ \rm{ \phi =NBA \sin( \gamma) }}\)

Answer:

A. Yes, the force of the engine does work on the car as it makes the car move forward.

B. Yes, the kinetic energy of the car increases as the car gains speed due to the force of the engine.

C. The gravitational potential energy of the car remains constant as the car is moving on a horizontal road, and there is no change in its height.

D. Yes, the tractive force of the engine changes the mechanical energy of the car as it is a type of external force that transfers energy to the car and increases its kinetic energy.

Explanation:

A red giant is a bright, low or intermediate-mass giant star in the late stages of stellar development. The outer environment is inflated and tenuous, resulting in a vast radius and a surface temperature of 5,000 K or lower.

Planets can be swallowed up by red giants as they grow. In around 5,000 million years, the Sun will reach the red giant stage. During this phase, it will most likely swallow our Solar System's core planets, including Earth.

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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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Hellow!

For this use the next formula:

Vf = Vo + gt

Initial velocity is zero, so the formula simplificate:

Vf = gt

Data:

Vf = Final velocity = ?

g = Gravity = 9.8 m/s²

t = Time = 12 s

Replacing according our data:

Vf = 9.8 m/s² * 12 s

Vf = 117.8 m/s

The final velocity will be 117.8 meters per second.

By the work energy theorem we know that the net work done on an object is equal to its change in kinetic energy, that is:

where

Then, the work energy theorem can be express as:

In this case we know that the work done is 1450 J, that the mass is 21.325 kg and the initial velocity is 6 m/s; plugging these values and solving for the final velocity we have:

Therefore, the final velocity is 13.115 m/s and the correct option is A.

How much pressure it would exert on the ground.

\( \frac{1000}{100 \times 100} \: {m}^{2} \)

\( = 0.1 \: {m}^{2} \)

\(P = \frac{F}{A} \)

\(P = \frac{20000 \: N}{0.1 \: {m}^{2} } \)

\(\large\boxed{\sf{P = 200000N /m^2}}\)

Hence, the pressure exerted on the ground is \(200000 \: N /m^2\)

Pressure = Force/Area

Pressure = 20,000/0.1

Pressure = 200000 N/m²

The following statements about random assignment is true:

It works best with a larger number of participants because there is more opportunity for extraneous variables to be equally distributed to each group.

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The resultant of the displacement is 336.5m

The process of splitting a vector into its components is called resolution of the vector. The vectors are splitted into vertical and horizontal component.

For the first displacement;

The vertical component = - 150 sin45 = -106.1 m

The horizontal component = - 150 cos 45° = -106.1 m

For the second displacement;

The vertical displacement = - 85sin90 = -85

The horizontal component = 0

For the third displacement;

The vertical displacement = 550 sin55 = 450.5

The horizontal displacement = 550 cos 55 = 315.5

Sum of vertical component = 450.5-85-106.1 = 263.4

sum of horizontal component = 315.5 -106.1 = 209.4

Using Pythagorean theorem

R = √ 263.4² + 209.4²

R = √113227.92

R = 336.5m

The resultant angle = tan^-1( 263.4/209.4)

= tan^-1(1.26)

= 51.56°

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Answer:

This question heavily relies on the weight of the table and the weight of the person sitting on it, if a 90 pound person sits on the side of a 40 pound table, it will topple over.

Explanation: Tables are generally have a 50/50 weight distribution ratio so that they are even on the ground and can stay upright, but if a table is too light and the person or object sitting on it is heavier than the side they/it is placed on, it will fall.

Answer:

C

Explanation:

Diagram C is the correct answer, because the ball is at the point with the highest height relative to the ground, in this way all the kinetic energy has been transformed into potential energy.

We must remember that potential energy is defined as the product of mass by gravity by height

Ep = m*g*h

where:

m = mass [kg]

g = gravity acceleration [m/s²]

h = elevation [m]

So when we have a great value for h in the above equation, we will have a big value for potential energy.