what is the angular momentum of a 0.340 kg ball rotating on the end of a thin string in a circle of radius 1.25 m at an angular speed of 12.0 rad/s ? express your answer using three significant figures and include the appropriate units.

Frequency is inversely proportional to the time period. That is, f = 1/T.

This refers to the number of waves that passes a fixed place in a given amount of time.  Frequency is measured in hertz, this is equal to one event per second.

What is period, T ?

This refers to the time needed for one complete cycle of vibration to pass a given point. A period is measured in seconds.

Note:  AS the frequency of a wave increases, the period of the wave decreases. Frequency and Period are in reciprocal relationships.

Mathematically :

f = 1/T

T =Total time,Period

f =  Frequency

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Answer:

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.

Explanation:

Answer:

The Positions are, Pitcher, Catcher, First base, second base, third base, shortstop, left field, Center field, and right field. Some pitches that they throw are, 4-seam fastball, Curveball, 2-seam fastball, Slider, Knuckleball, 12-6 Curve, Knucklecurve, Slurve, Changeup, Splitter, Cutter, Split-finger fastball, Sinker, Palm ball, Eephus pitch, Screwball, Cut Fastball, Circle Changup, and Forkball. I think thats all the piches i know.

Charged particles in a circle with a radius of 0.10 m and a speed of 3.0 m/s experience a 7.0 T magnetic field perpendicular to their velocity. The particle has a charge that is roughly 0.0214 Coulombs in size.

To find the magnitude of the charge on the particle, we can use the equation for the centripetal force experienced by a charged particle in a magnetic field:

F = qvB

Where:

F is the centripetal force

q is the charge on the particle

v is the velocity of the particle

B is the magnetic field strength

In circular motion, the centripetal force is given by:

\(F = \frac{{mv^2}}{{r}}\)

Where:

m is the mass of the particle

v is the velocity of the particle

r is the radius of the circle

Since the centripetal force is also equal to qvB, we can equate the two expressions:

\(\frac{{mv^2}}{{r}} = qvB\)

Simplifying the equation:

mv = qrB

Rearranging the equation to solve for the charge (q):

\(q = \frac{{mv}}{{rB}}\)

Given:

m = 0.0050 kg (mass of the particle)

v = 3.0 m/s (velocity of the particle)

r = 0.10 m (radius of the circle)

B = 7.0 T (magnetic field strength)

Substituting the values into the equation:

\(q = \frac{{0.0050 \, \text{{kg}} \cdot 3.0 \, \text{{m/s}}}}{{0.10 \, \text{{m}} \cdot 7.0 \, \text{{T}}}}\)

Calculating the value:

q ≈ 0.0214 C

Therefore, the magnitude of the charge on the particle is approximately 0.0214 Coulombs.

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The surface motion will typically cease first due to these environmental factors, while the internal seiche motion can continue for much longer. The strength and direction of the wind can also affect the duration of a rocking motion, as surface waves can be easily dispersed by high winds.

A rocking motion is caused by a sudden change in the distribution of water due to events such as earthquakes or tsunamis. It can result in the surface or internal seiche motion. When it comes to which of these rocking motions ceases first, the answer is that the surface motion usually stops first due to wind resistance and other environmental factors.

However, the internal seiche motion can continue for much longer, as it is not affected by these factors in the same way as surface motion. Internal seiches are caused by the changes in density between layers of water in a body of water, which can cause a wave-like motion that can travel through the water over long distances.

These waves are typically slower and less noticeable than surface waves, but they can still cause significant damage in certain circumstances. When it comes to stopping a rocking motion, there are several factors that can influence the duration of the motion. One of the most significant factors is the depth of the water, as waves will continue to propagate until they reach the bottom of the body of water.

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Answer:4 miles

Explanation:

Answer:

C

Explanation:

The change in momentum of x has to be the opposite of the change in momentum of Y because the momentum is just transferred from one to another. But I'm still trying to figure it out how to calculate.

The change in momentum of the system is zero, change in momentum of astronaut X is -100 Kg·m/s and change in momentum of astronaut Y is 100 Kg·m/s.

To find the correct statement among all other options, we need to know more about the conservation of linear momentum.

Linear momentum of an object is the product of its mass and velocity of it.

In the absence of net external force, the linear momentum of a system remains constant.  

Thus, we can conclude that option (c) is correct.

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Answer:

120

Explanation:

lambda = 12

f=10

10×12=120

Answer:

Newton's Third Law states that "For every action, there is an equal and opposite reaction." An example of this law is the following scenario:

Imagine you are pushing a heavy box across the floor. According to Newton's Third Law, the box will exert an equal and opposite force back on you, making it harder to push. The more force you apply to the box, the greater the force it will exert back on you. This reaction force is what makes it difficult to push the box. The same idea applies when jumping off a diving board or jumping on a trampoline - the force you apply to the board or trampoline is equal and opposite to the force it applies back on you.

Answer:

It would lift the object to the same height than before you move it 3 centimeters to the left. You see, the height doesn't change if you move the inclined plane horizontally, because height is a vertical variable.

Therefore, if the inclined plane has a height of 1 meters, then the object will be lifted 1 meters up, no matter if you move the inclined plane 50 meters horizontally, it won't change its height.

Gamma-ray bursts from space were first detected by the Vela satellites launched by the Defense Department (and later this information was shared with American scientists.) In 1991, NASA launched the Compton Gamma Ray Observatory to identify and study more gamma-ray bursts.

This space observatory revealed that the bursts were distributed isotropically around the sky; they did not come more often from the plane of the Milky Way Galaxy. These early observations could not pinpoint the location of the gamma-ray bursts because they did not have sufficient positional accuracy. It was not until the launch of the BeppoSAX satellite in 1996 that we got precise enough locations so that other telescopes could find the afterglow of a burst. These observations showed that the bursts were located in other galaxies.

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Answer:  D

Explanation:

Answer:

9.45 m/s

Explanation:

After the driver applied the brakes, the car traveled 20 m.Additionally, the issue was outlined in detail below.

Speed is defined as the amount of distance covered in a given amount of time. It refers to how quickly a body moves.Speed is a scalar quantity that consists solely of the velocity vector's magnitude. Speed lacks direction since it is a scalar variable and only possesses magnitude.

A=F(s)

frictional force F=6000N

When two surfaces come into contact with one another, frictional force acts to move them either in the same direction or in the opposite way.

A=120000J

s=A/F

s=120000J/6000N

s=20m

with in 20 m the car travel after the driver applied the brakes.

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The given statement "multimode fiber is capable of longer transmission distances than single mode fiber" is incorrect. The multimode fiber is not capable of longer transmission distances than single mode fiber.

What is single mode fiber?

Single mode fiber is the type of fiber optic cable that carries light directly down the fiber. The core diameter of single mode fiber is much smaller than that of multimode fiber. The small core reduces the dispersion of light. Single mode fiber can be used to transmit data over longer distances than multimode fiber because it has a lower attenuation rate.

What is multimode fiber?

Multimode fiber is the type of fiber optic cable that carries light down the fiber in many modes. In multimode fiber, the diameter of the core is large and is measured in 50 to 100 microns. Multimode fiber is used for short-distance communication. The data transmission rate is slower, but the larger core allows for a higher bandwidth than single mode fiber.Multimode fiber is less expensive than single mode fiber, but it has a shorter transmission distance. In contrast, single mode fiber is more expensive but offers longer transmission distances due to its low attenuation rate.

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The length of the truck that is 75 percent longer than the car is 315 inches.

The length of the truck that is 75 percent longer than the car is determined from the percentage increment of the truck from the car.

The length of the car is given as 180 inches, then the length of the truck that is 75 percent longer than the car is calculated as follows;

Lt = ( 75 %  + 100 % ) x Lc

where;

Lt = ( 175% ) x Lc

Lt = ( 1.75 ) x 180 inches

Lt = 315 inches

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Yes, that statement is correct. The larger container of water will have more heat energy available for heat conduction due to its larger volume and higher mass. This means that it will take longer to heat up or cool down compared to a smaller container with less water. Additionally, the larger surface area of the container also allows for more efficient heat transfer through convection and radiation. Therefore, a larger container of water can be more effective for providing heat to a space or conducting heat through a system.

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The major difference between matter at nanoscale and matter at larger scales is that matter at nanoscale can change its physical, biological and chemical properties in the way we know it on larger scales.

A nanometer is a billions of meter (1 nm = 10⁻⁹ m), it is bigger than an atom, but smaller than a millimeter. The standard symbol is  "nm"

Examples:

At nanoscale the physical, chemical and biological properties of materials differ from the properties of matter above this point the properties of material are caused by the mass or the volume effects.

Example:

It is the science that studies the very small materials particles as atomic, molecular and supramolecular scale. It is used in design, characterization, production and application of matter.

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The lump hits the wall at a height of 1.09 m.

To determine the height on the wall where the lump hits, we need to analyze the projectile motion of the lump after it leaves the rim of the wheel. Since the motion is in a vertical plane, we can treat the horizontal and vertical components separately.

Calculate the horizontal distance traveled by the lump. The period of rotation of the wheel is 6.50 ms, which corresponds to a frequency of 1/6.50 ms. In one complete revolution, the lump travels a distance equal to the circumference of the wheel, which is 2π times the radius. Therefore, the horizontal distance traveled by the lump is:

Distance = (2π)(0.23 m) = 1.45 m

Next, we can analyze the vertical motion of the lump. The lump is launched with an initial vertical velocity of 0 since it leaves the rim horizontally. The time of flight can be determined using the equation:

Time = (2 × height) / gravity

Substituting the given values, we have:Time = (2 × 1.30 m) / 9.8 m/s² = 0.265 s

Now, we can calculate the vertical distance traveled by the lump during this time using the equation:

Distance = (1/2) × acceleration × time²

Substituting the acceleration due to gravity (-9.8 m/s²) and the time of flight (0.265 s), we have:

Distance = (1/2) × (-9.8 m/s²) × (0.265 s)² = -0.335 m

Since the lump started at a height of 1.30 m, the final vertical position will be:

Final height = Initial height + Distance

Final height = 1.30 m - 0.335 m = 0.965 m

However, since the lump was launched horizontally, it will hit the wall at the same height as the starting point, which is 0.965 m or approximately 1.09 m.

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Answer:

1800 seconds

Explanation:

Given,

Distance ( d ) = 18 km

Velocity ( v ) = 10 m/s

To find : Time ( t ) = ?

Distance in km need to be converted to m.

1 km = 1000 m

18 km

= 18 x 1000

= 18000 m

So,

d = 18000 m

Formula : -

v = d / t

t = d / v

= 18000 / 10

t = 1800 seconds.

Therefore,

1800 seconds long, it will take to cover a distance of 18 km.

Your answer would 1800 seconds.

You're welcome ;)

Answer:

Ver explicacion abajo

Explanation:

En este caso para poder calcular el error relativo porcentual, es necesario calcular primero el error absoluto, que se calcula de la siguiente forma:

Error absoluto = Resultado exacto - aproximación

Sin embargo, no tenemos el resultado exacto de las medidas, pero podriamos conocerlo tomando el promedio de estas medidas y este es el que tomaremos como el verdadero resultado de las medidas:

Promedio de medidas = 1.34 + 1.35 + 1.37 + 1.36 / 4

Promedio de medidas = 1.355 m

Ya que tenemos el promedio, podemos calcular el error absoluto de cada medida y luego el error relativo porcentual:

Ea1 = 1.355 - 1.34 = 0.015

Ea2 = 1.355 - 1.35 = 0.005

Ea3 = 1.37 - 1.355 = 0.015

Ea4 = 1.36 - 1.355 = 0.005

Ya que tenemos los 4 errores absolutos, es posible calcular el porcentual:

%error relativo = (Error absoluto / resultado exacto) * 100

Aplicando la expresión con cada uno de los valores tenemos:

%Er1 = (0.015/1.34) * 100 = 1.12%

%Er2 = (0.005/1.35) * 100 = 0.37%

%Er3 = (0.015/1.37) * 100 = 1.09%

%Er4 = (0.005/1.36) * 100 = 0.37%

Espero que te sirva.

The differential-mode input resistance of a BJT differential pair can be found by dividing the differential-mode input voltage by the differential-mode input current.

To find the differential-mode input resistance of a BJT differential pair based on the small-signal differential input voltage and current, you can follow these steps:

              Rin = Vd / Id.

It's important to note that the differential-mode input resistance is specific to the small-signal analysis and represents the input impedance of the BJT differential pair when only the differential-mode signal is considered.

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Answer: I believe it to be D.

Starburst galaxies is simply known as the rate at which the galaxy is now converting gas into stars. The statement that is not a general characteristic of starburst galaxies is that The "starburst" is thought to be caused by the presence of a supermassive black hole in the galaxy's center.

They are known to be rare. A starburst is known to be an astrophysical process. It is the process of star formation happening at a rate that is large when compared to the rate that is often observed.

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Which is not a general characteristic of starburst galaxies?

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Answer:

\(f = mg \\ = 70 \times 9.8 = |f| \)

The angle necessary to keep a 10 kg box motionless, given a coefficient of static friction of 0.55 between the box and the ramp, is 33.4°, which corresponds to Option A.

To determine the angle, we can use the relationship between the coefficient of static friction, the angle of the incline, and the gravitational force acting on the box. The maximum static friction force can be calculated using the formula:

Friction force = coefficient of static friction * Normal force

The Normal force can be found by decomposing the gravitational force acting on the box into components parallel and perpendicular to the incline. The perpendicular component (Normal force) is equal to the weight of the box (mass * gravitational acceleration).

Since the box is motionless, the friction force must be equal to the component of the gravitational force acting parallel to the incline:

Friction force = Component of weight parallel to incline

By substituting the given values and solving for the angle, we find:

coefficient of static friction = tan(angle)

angle = arctan(coefficient of static friction)

angle = arctan(0.55) ≈ 33.4°

Therefore, the correct answer is Option A, 33.4°.

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Answer:

Acceleration occurs when an object changes its VELOCITY or DIRECTION or both.

Explanation:

Answer:

When the velocity of an object changes it is said to be accelerating. Acceleration is the rate of change of velocity with time. ... Acceleration occurs anytime an object's speed increases or decreases, or it changes direction. Much like velocity, there are two kinds of acceleration: average and instantaneous. answer velocity or direction.

hope this helps!