A very small 51-g steel ball is released from rest and falls vertically onto a steel plate. The ball strikes the plate and is in contact with it for 0. 50 ms. The ball rebounds elastically and returns to its original height. The total time interval for a round trip is 3. 00 s. What is the magnitude of the average force exerted on the ball by the plate during contact with the plate?.

The percentage of the initial mechanical energy of the apple-earth system that was dissipated is : 84%

Given that

Potential energy = mgh = 0

                           = m* 9.81 * 500 = 0

                           = 4905 m J

Kinetic energy ( K ) = 1/2 mv²

                                 = 1/2 * m * 40²

                                 = 800 m

Next step : calculate the dissipated energy

dissipated energy = Potential energy - kinetic energy

                              = 4905 m - 800 m

                              = 4105 m

Final step : determine the percentage of the dissipated energy

= dissipated energy / potential energy

= 4105 m / 4905 m

= 84%

Hence we can conclude that The percentage of the initial mechanical energy of the apple-earth system that was dissipated is : 84%

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To find the torque, we can use the formula:

τ = r x F

Torque is a physical quantity that describes the ability of a force to rotate an object around an axis or pivot point. It is defined as the product of the force and the lever arm distance from the axis to the point of force application.

where r is the position vector from the origin to the point of application of the force, F is the force vector, and x represents the cross product.

First, we need to calculate the cross product of r and F:

r x F = det([[i, j, k], [-0.450, 0.150, 0], [-5.00, 4.00, 0]])

= (0)(0) - (-0.450)(0) + (-5.00)(0.150)i - (-4.00)(-0.450)j + (0)(4.00)k

= 1.80i + 1.80j

Therefore, the torque is τ = 1.80i + 1.80j N*m.

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Explanation:

A. Up along the page

Using the law of the right hand

Answer:

Basic units=those units of measurement which do not depend upon any other units are called basic units. Example length, mass, time, current etc.

Derived units=those units which are expressed in terms of fundamental units are called derived units. Example area, volume, density etc.

Answer:The object has negative acceleration and eventually stops.

Explanation:

Answer:not sure

Explanation:

Sorry:(

These are the four largest moons of Jupiter and are collectively known as the Galilean moons. They were discovered by Galileo Galilei in 1610 and are named after characters from Greek mythology. Europa, Ganymede, Io, and Callisto are all fascinating celestial bodies with unique features and scientific significance

Europa is known for its subsurface ocean that may harbour conditions suitable for life, Ganymede is the largest moon in the solar system, Io is the most volcanically active object in the solar system, and Callisto is heavily cratered and geologically diverse. These moons have been studied extensively by spacecraft missions such as NASA's Galileo and Juno missions, providing valuable insights into the nature of Jupiter's moons and their geological processes. The major moons of Jupiter are Europa, Ganymede, Io, and Callisto. The major moons of Jupiter are Europa, Ganymede, Io and Callisto.

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The value of the point charge is zero.

What do you mean by charge?

Charge, also known as electric charge, electrical charge, or electrostatic charge and denoted by the symbol q, is a property of a unit of matter that indicates how many more or fewer electrons than protons it contains.

When a subatomic particle is exposed to an electric and magnetic field, its electric charge causes it to feel a force. There are two sorts of electric charges: positive and negative. The electric field outside the sphere is the same as the field from a point charge with a net charge of Q, according to Gauss' law, whereas the electric field inside the sphere is zero. For a solid or hollow sphere, this conclusion holds valid.

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If a force has a constant magnitude, we can calculate the size of the impulse by dividing the force's strength by the length of time it is applied.

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Answer:

p=I×B

Explanation:

If a current 'I' flows through a given element in your circuit, losing voltage 'V' in the process, then the power 'P' dissipated by that circuit element is the product of that current and voltage.

Answer:

A. A battery powering a flashlight

Answer: depends on what your nervous about

Explanation:tell me what your nervous about

Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency. This equation can be used to calculate wave speed when wavelength and frequency are known.

Answer:

1.667 m/s ^2

Explanation:

we use the formula F=ma

F= 12.5 N

m= 7.5 kg

a=?

F=ma

12.5= 7.5 x a

a= 12.5/7.5

a= 1.667 m/s^2

The speed of the spaceship is 0.099c.

Speed is the fastest movement of something.

Given:

L = 30 m is the proper length of the ship

• Delta*L = 13.8cm = 0.13m is the change in length

Let us first determine our contracted length. We can do this by subtraction:

L = 30m - 0.13m

We get:

L = 29.87

Now to determine the speed of the ship, we use the length contraction equation:

L = L_{0} * √(1 - (v ^ 2)/(c ^ 2))

We isolate the square root term:

√(1 - (v ^ 2)/(c ^ 2)) = L/L_{0} To simplify calculations, let us first substitute our lengths:

√(1 - (v ^ 2)/(c ^ 2)) = (29.87/(30) =

= 0.995

After calculation

V/C = 0.099874

Or V= 0.099c

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The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.

Velocity is the rate of change of displacement over time.

As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.

So option A is correct.

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Answer:

This can be explained by the equation Force=Mass x Acceleration. Vehicle 2 has a higher acceleration than Vehicle 1, which means it accelerates quicker. However, this increased acceleration is achieved by a less forceful engine. This is possible because Vehicle 2 has a lower mass than Vehicle 1, meaning the same force applied to Vehicle 2 results in greater acceleration. Therefore, Vehicle 2 has a greater acceleration than Vehicle 1 but has a less forceful engine.

Answer: D

Explanation: It says that in the paragraph

Answer:

Roman numerals, capital letters, Arabic numerals, lowercase letters

Explanation:

One may calculate the spreading rate on one side of a mid-ocean ridge by dividing the distance by the time (Distance/Time = Rate). This is known as a half-spreading rate. Multiply it by two to get the spreading rate in its entirety on both sides of the ridge.

It spreads 2 to 5 cm (8 to 2 inches) every year and forms an ocean trench about the size of the Grand Canyon. The East Pacific Rise, on the other hand, is a core that is quickly expanding. It spreads by around 6 to 16 cm per year (3-6 inches).

Seafloor spread occurs at mid-ocean ridges, where new oceanic crust is produced by volcanic activity and then gradually moves away from the ridge.

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A girl pulls her school box with force of 78N inclined at 27 degrees to the ground.  The part of the force moving the box along the ground will be 35.1 N

there will be two components of forces :

vertical as well as horizontal component

vertical component = F sin ( 27 )

horizontal component = F sin ( 27 ) = 78 sin ( 27 )

                                                          = 35.1 N  

The part of the force moving the box along the ground will be 35.1 N

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Answer:

Energía cinética.

Explicación:

La energía cinética es un tipo de energía que se utiliza para hacer girar la turbina. La energía cinética que está presente en el fluido o el viento obliga a girar la turbina que convierte esta energía y conduce a la generación de energía eléctrica. Cuando el viento o el fluido en movimiento toca las palas de la turbina, provoca la rotación de la turbina y, debido a esta rotación, los generadores conectados a la turbina también inician un movimiento que produce energía eléctrica.

Answer: Butter paper, ground glass, and a bonus thin sheets of plastic

Explanation: Translucent objects allow light to pass through them partially.

Answer:

Tinted windows, frosted glass, sunglasses, wax paper, fingers, and certain plastics are all examples of translucent objects. Translucent is defined as a material that blurs light as it passes through.

Hope this helps :)

Answer:

43.1 kJ

Explanation:

Q=mCT, where Q is the energy, m is the mass, C is the specific heat, and T is the temperature change.

Q = (140g)*((4.16 J/(g*C))*(90C - 16C) = 43098 J, or 43.1 kJ with 3 sig figs

Answer:

380 to 700 nanometers

Explanation:

The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers.

Answer:

- The force that magnet B pulls on the magnet A is equal to the force that magnet A pull on B. That is , 100N.

-   F'B = 25N

Explanation:

- You have that the magnet A pulls on the magnet B with a force of 100N.

By the third Newton law you have that any force has a reaction, that is, the force that magnet B pulls on the magnet A is equal to the force that magnet A pull on B. That is , 100N.

-  In order to calculate the force, if the distance between magnets is twice, you first take into account that the magnetic force is inversely proportional to the force between magnets, as follow:

\(F_B\ \alpha\ \frac{1}{r^2}\)     (1)

FB: magnetic force between the magnets = 100N

If the distance is twice, you obtain:

\(F_B'\ \alpha\ \frac{1}{(2r)^2}=\frac{1}{4r^2}\\\\F_B'\ \alpha\ \frac{1}{4}F_B\)

The new force is a quarter of the initial force, that is:

\(F_B'=\frac{1}{4}(100N)=25N\)

If the distance is twice the force is a quarter of the initial force.

Answer:

The RMS value for single phase equipment is 707 kV

Explanation:

Just answered question

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For a single-phase unit with a peak kilovoltage of 100 kVp, the RMS value would be approximately 70.7 kV.

to calculate RMS value?In a single-phase unit set at 100 kVp (peak kilovoltage), the root mean square (RMS) value can be calculated using the relationship between peak voltage and RMS voltage for a sinusoidal waveform. The formula to find the RMS value is:

RMS voltage = peak voltage / √2

In this case, the peak voltage is 100 kVp.

Therefore, to calculate the RMS value, simply divide 100 kVp by the square root of 2 (√2 ≈ 1.414):

RMS value = 100 kVp / 1.414 ≈ 70.7 kV

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The axial resistance of an axon is calculated using the formula R = ρL/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. In this case, the axial resistance is 11.28 MΩ.

The resistance along the axon is calculated using the following formula:

R = ρL/A

where:

R is the resistance in ohms

ρ is the resistivity in ohms per meter

L is the length in meters

A is the cross-sectional area in meters squared

In this case, we have:

ρ = 1.6 x 107 Ω.m

L = 0.5 mm = 0.0005 m

A = πr² = π(5 x 10-6)² = 7.854 x 10-13 m²

Therefore, the resistance is:

R = ρL/A = (1.6 x 107 Ω.m)(0.0005 m) / (7.854 x 10-13 m²) = 11.28 MΩ

Therefore, the axial resistance of the axon is 11.28 MΩ.

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Explanation:

centripetal force is a force that makes a body follow a curved path. for example, twirling,a lasso, cream seperator etc.

A force that causes an objectmoving in a circular path to move out and away from the centres of it's path is centrifugal force. for example,drifting, banked roads, washing machine etc.

Circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. for example, stirring batter, stone tied to a string etc

hope its helpfull♡

To calculate the density of the baseball, we need the mass (m) and volume (V) of the baseball. The formula for density is D = m/V.

If you have the mass and volume measurements of the baseball, you can plug them into the formula to calculate the density. However, since you haven't provided the specific mass and volume values, I'm unable to calculate the density of the baseball for you. Once you have the density value, you can compare it to the acceptable density range for official baseballs, which is between 0.70 g/cm³ and 0.80 g/cm³. If the density of the baseball falls within this range, it is considered to have an acceptable density for an official baseball.

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Answer:

v = 4.39968 m/s

v = 9.8418038654259 mi/h

v = 14.434645669291 ft/s

v = 15.838846732892 km/h

Explanation:

v=KE/1/2m

A) Moving with a constant speed in the positive direction, B) Moving in the negative direction and speeding up, C) Moving in the positive direction, first fast then slow, and D) Moving with negative velocity and negative acceleration.

A) Moving with a constant speed in the positive direction: This indicates a linear motion where the object maintains a constant velocity in the positive direction. The sketch would show a straight line with a constant positive slope, indicating a steady speed.

B) Moving in the negative direction and speeding up: This suggests an object that is initially moving in the negative direction and is accelerating, or increasing its speed. The sketch would depict a line with a negative slope that becomes steeper over time, indicating an increase in velocity.

C) Moving in the positive direction, first fast then slow: This implies an object initially moving in the positive direction at a high speed and gradually slowing down. The sketch would show a line with a positive slope that becomes less steep over time, indicating a decrease in velocity.

D) Moving with negative velocity and negative acceleration: This refers to an object moving in the negative direction with decreasing speed, or decelerating. The sketch would display a line with a negative slope that becomes less steep over time, representing a decrease in velocity.

These sketches provide visual representations of the predicted actions/movements, illustrating the changes in velocity over time for each scenario.

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