in his famous oil drop experiment to determine the charge on electrons, robert millikan sprayed oil droplets charged with electrons into a chamber and then levitated the droplets by varying the intensity of a uniform electric field inside the chamber. what is the direction and magnitude of the electric field millikan needed to levitate an oil droplet charged with electrons?

With 30,000ml of air left in a used tank, taking in full inspiratory reserve volume with panic breaths, one can inhale around 20 times before the air runs out.

You can breathe normally 20 times until the air runs out after diving into the water, discovering a used air tank with 30,000 ml of air left, and panicking while inhaling the entire inspiratory reserve volume with each breath. The quantity of air that can be breathed more than the tidal volume is known as the inspiratory reserve volume. An adult in good health has an average inspiratory reserve capacity of about 3,000 ml.

As a result, you may take about 10 complete breaths with 30,000 ml of air still in the tank, multiplied by 3,000 ml for every breath. The inspiratory reserve capacity is expected to rise during panic breathing, leading to smaller breaths and more frequent inhalations, allowing for about 20 breaths. In a survival crisis, it's critical to maintain composure and save air.

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The components of a mixture can be physically separated from one another using procedures that depend upon differences in their physical properties.

When mixtures mix together, they retain their own characteristics. As a result, they may frequently be separated apart once more without much difficulty.

They may be separated from one another using their distinctive physical characteristics.

A solid-solid mixture is a combination of two solids. By using the difference in the solids' solubilities, we can separate these mixtures.

If one of them experiences a certain phase transition while the other does not, we may also separate them.

A phase transition known as sublimation occurs when an element moves from the solid to the gas phase without first transitioning to the liquid form. This can be applied to the separation of two solids.

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Answer: a lot of MASS

Explanation:

The period of a wave is the amount of time it takes for the wave to complete one full cycle.

The period of a wave is the amount of time it takes for one full cycle of the wave to complete. It is usually measured in seconds and is represented by the symbol "T".

The period is also the inverse of the frequency of the wave, meaning that if the frequency of a wave is high, the period will be short, and if the frequency is low, the period will be long.

In other words, the period of a wave is the amount of time it takes for the wave to go from one peak to the next, or from one trough to the next. It is an important characteristic of waves and is used in many applications, including in the fields of physics, engineering, and music.

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Answer:

hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9

Answer:

I can msg it toyou

------->------>---->

Explanation:

The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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Solve for the linear/tangential speed:

a = v²/r

where a = centripetal acceleration, v = speed, and r = radius.

4.7 m/s² = v²/(0.3 m)

v² = (0.3 m) (4.7 m/s²)

v ≈ 3.96 m/s

For every time the record completes one revolution, a fixed point on the edge of the record travels a distance equal to its circumference, which is 2π (0.3 m) ≈ 1.88 m. So if 1 rev ≈ 1.88 m, then the angular speed of the record is

(3.96 m/s) (1/1.88 rev/m) ≈ 7.46 rev/s

Take the reciprocal of this to get the period:

1 / (7.46 rev/s) ≈ 0.134 s/rev

So it takes the record about 0.134 seconds to complete one revolution.

Answer:

Explanation:

The answer is C

The magnitude of the force the dart exerted on the board is 50 Newton.

The definition of force in physics is: The push or pull on a mass-containing item changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A spring balance can be used to calculate the Force. Newton is the SI unit of force.

Given parameters:

Mass of the dart: m= 0.040 kg.

Momentum of the dart: p = + 1.5 kg m/s.

Time required to stop = 0.030 seconds.

Hence, the magnitude of the force the dart exerted on the board is =

change in momentum/time

= (1.5 - 0.040×0)/0.030 Newton

= 50 Newton.

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Answer:

A gas is a state of matter in, which atoms remains in a constant motion, they do not stick together. They are free and can move in all directions. The gas molecules expands to fill the available space.

Explanation:

hope this helps! (please give me brainliest, but you do not have to tho)

Answer:

A gas is a state of matter in, which atoms remains in fast  motion,  the gas molecules expands to fill the available space.so the answer would be The atoms in a gas move at high speed. i hope this helped :)  also remember Gas is a state of matter that has no fixed shape and no fixed volume.

Explanation:

The baseball does not possess larger momentum than the bowling ball.

Momentum of the bowling ball can be calculated as:

Mb = m × v

where Mb is the momentum of the bowling ball,

m is the mass of the bowling ball,

v is the speed of the bowling ball.

It is given that,

m = 8 kg

v = 1.5 m/s

So,

Mb = 8 kg × 1.5 m/s

= 12 kg·m/s

The momentum of the baseball can be calculated as:

Mb = m × v

where Mb is the momentum of the baseball,

m is the mass of the baseball,

v is the speed of the baseball.

It is given that,

m = 0.143 kg,

v = 40 m/s

So,

Mb = 0.143 kg × 40 m/s

= 5.72 kg·m/s

Thus, the momentum of the bowling ball is greater than that of the baseball.

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The coefficient of kinetic friction between the tires and the road is 4.7.

To calculate the coefficient of kinetic friction, we can use the formula:

coefficient of kinetic friction = change in speed/force of friction.

The change in speed is 46 km/h - 0 km/h = 46 km/h.

The force of friction is the mass of the object times the acceleration due to gravity (9.8 m/s2).

We will assume the mass of the object is 1 kg.

Therefore, the force of friction is 9.8 N.

We can now calculate the coefficient of kinetic friction: coefficient of kinetic friction = 46 km/h/9.8 N = 4.7.

Therefore, the coefficient of kinetic friction between the tires and the road is 4.7.

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No kinetic energy is transferred to the hydrogen atom since it was initially stationary.

In an elastic collision, both momentum and kinetic energy are conserved. Since the hydrogen atom is initially stationary, the electron's initial kinetic energy will be transferred to the kinetic energy of the hydrogen atom after the collision.

The percentage of the electron's initial kinetic energy transferred to the hydrogen atom can be calculated by comparing the final kinetic energy of the hydrogen atom to the initial kinetic energy of the electron.

Let's assume the electron's initial kinetic energy is K1, and the final kinetic energy of the hydrogen atom is K2.

Since the hydrogen atom was initially stationary, its initial kinetic energy is zero (K2 = 0).

The conservation of kinetic energy tells us that K1 = K2.

Therefore, the percentage of the electron's initial kinetic energy transferred to the hydrogen atom is:

( K2 / K1 ) * 100 = ( 0 / K1 ) * 100 = 0%

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Answer: skeletal system and nervous systems

Explanation:

Many different body systems work together to perform daily functions in life. The skeletal system and nervous systems work together to produce movement and keep your organs functioning.

Answer:

\(9.15\times 10^{13}\ \text{N}\)

Explanation:

\(m=\text{Mass of person}=\dfrac{675}{g}=\dfrac{675}{9.8}\ \text{kg}\)

\(g=\text{Acceleration due to gravity on Earth}=9.8\ \text{m/s}^2\)

\(r=\text{Radius the neutron star}=10\ \text{km}\)

\(M=\text{Mass of neutron star}=1.99\times 10^{30}\ \text{kg}\)

\(G=\text{Gravitational constant}=6.674\times10^{-11}\ \text{Nm}^2/\text{kg}^2\)

Weight on neutron star would be

\(W_n=\dfrac{GmM}{r^2}\\\Rightarrow W_n=\dfrac{6.674\times 10^{-11}\times \dfrac{675}{9.8}\times 1.99\times 10^{30}}{10000^2}\\\Rightarrow W_n=9.15\times 10^{13}\ \text{N}\)

Weight of the person on the neutron star would be \(9.15\times 10^{13}\ \text{N}\)

Forces and motion are fundamental concepts in physics that help us understand the behavior of objects in motion. Forces can cause objects to accelerate, change direction, or stop moving altogether.

The three laws of motion proposed by Sir Isaac Newton provide a framework for understanding how forces affect motion. The first law states that an object at rest will stay at rest, and an object in motion will stay in motion, unless acted upon by an external force. The second law states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. The third law states that every action has an equal and opposite reaction. To test these concepts in physical science, experiments can be designed to measure the effects of forces on motion, such as the acceleration of objects on inclined planes, the motion of objects in free fall, or the forces involved in collisions.

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The complete question is

Forces and motion until test for physical science eginuity credit recovery ?

Answer:What is the acceleration of a car that moves from rest to 15.0 m/s in 10.0 s? Vi=0, vf= 15.0 m/s,t=10.0s, a=? a= vf =vi/tA=15.0m/s-0m/s/10.0s = 15.0s/10.0s m/s*1/s =1.50 m/s^2 11.

Explanation:

The heat and pressure generated when slamming on the brakes can cause tears and cracks in the hoses.

Sliding friction is defined as the force acting between moving surfaces. An object moving on a surface experiences a force opposite its direction of motion. The force magnitude depends on the dynamic friction coefficient between the two materials.

Static friction prevents the box from moving without being pushed. It must be overcome with sufficient reaction force before the box can move. Kinetic friction is the force that resists the relative motion of surfaces when they begin to move.

Sliding friction is also called kinetic friction because it occurs between two surfaces rubbing against each other. Sliding friction is caused by the entanglement of surface irregularities.

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Answer:

The anwser is C, Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction.

Explanation:

i just took the test and got 100%

Answer:

C or Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction.

Explanation:

The equation given as:

\(\(\[ \gamma_{d}\)

=\(\frac{G_{s} \gamma_{w}}{1+e} \]\)\)

needs to be rewritten in terms of 6. We know that e = 2.71 approximately,  the equation in terms of 6 is:

\(\(\[\gamma_d = \frac{6G_s\gamma_w}{22.26}\]\)\)

This new equation gives the value of γd in terms of 6.

so we will substitute this value in the equation to get:

\(\[\gamma_d = \frac{G_s\gamma_w}{1+2.71}\]\)

Simplifying the expression by adding the denominator terms and getting a common denominator, we get:

\(\(\[\gamma_d = \frac{G_s\gamma_w}{3.71}\]\)\)

Now, we can divide both sides of the equation by 3.71 to isolate γd on one side and write the equation in terms of 6, as follows:

\(\[\gamma_d\)

\(= \frac{G_s\gamma_w}{3.71} \times \frac{6}{6}\] \[\gamma_d \(\)

\(= \frac{6G_s\gamma_w}{22.26}\]\)\)

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Answer:

  A.  The forces are the same size and in opposite directions.

Explanation:

Just as an opposite number will cancel a number: -1 +1 = 0, so an opposite force will cancel a force, with the result that the net is zero.

Its A The force are the same size and in opposite direction

The total resistance of the circuit, given that parallel circuit has two resistors at 15 and 40 ohms is 11 ohms.

From the question given, the follow data were obtained:

The total resistance in the circuit can be obtained as follow:

R = (R₁ × R₂) / (R₁ + R₂) => Parallel arrangement

= (15 × 40) / (15 + 40)

= 600 / 55

= 11 ohms

Thus, we can conclude that the total resistance 11 ohms. None of the options are correct.

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The cells in the eye that are specialized to detect light intensity are called rods and cones.

Light intensity refers to the amount of energy carried by a light wave and is typically measured in units of power per unit area. It is a measure of the amount of light that is incident on a given surface, or the strength of a light source. A light wave is characterized by its wavelength, frequency, and amplitude. The amplitude of a light wave determines its intensity, which is proportional to the square of the amplitude. When a light wave is incident on a surface, the intensity of the light decreases as it spreads out, so the intensity decreases with distance from the source.

Here,

Rods are more sensitive to light and are responsible for detecting low-light levels and vision in dim light, while cones are responsible for color vision and visual acuity in bright light.

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Answer:

Established a government for the Northwest Territory, outlined the process for admitting a new state to the Union, and guaranteed that newly created states would be equal to the original thirteen states

Explanation:

Goooogle, so I hope this helps somewhat

Also, isn't this a History question? You put physics lol

Answer:

vegetables food, sport sport sport

Explanation:

????!!!!

Before the cannon ball is in the air this force is basically:

And the force of the explosion is:

After this force is applied to the cannonball after being shooted;

So, the force of the cannonball only depends on the acceleration of gravity.

Therefre, tehe statement is False

The combination or the resultant of all the forces acting on an object is called Net Force, which is basically the sum of all the forces acting on that object.

What is net force?

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If an object falls with constant acceleration, the velocity of the object must increase uniformly over time. This means that the object's velocity will change by the same amount in equal time intervals.

Constant acceleration refers to a situation in physics where an object's velocity changes at a constant rate over time. It means that the object's acceleration remains the same throughout its motion. In other words, the object's speed increases or decreases by the same amount in equal intervals of time.

When an object experiences constant acceleration, its velocity changes linearly with time. Mathematically, this relationship is described by the equation:

v = u + at

Where:

v is the final velocity of the object,

u is the initial velocity of the object,

a is the constant acceleration, and

t is the time interval.

Additionally, the object's displacement (change in position) can be determined using the equation:

s = ut + (1/2)at^2

Where:

s is the displacement of the object

In a scenario where an object is falling due to gravity near the surface of the Earth, it experiences a constant acceleration known as the acceleration due to gravity, denoted by the symbol "g." The value of acceleration due to gravity on Earth is approximately 9.8 meters per second squared (9.8 m/s²) directed downward.

As the object falls, its velocity will increase at a constant rate. This implies that in equal time intervals, the change in velocity will be the same. For example, if the object's velocity increases by 10 meters per second (10 m/s) in the first second, it will increase by an additional 10 m/s in the second second, and so on.

In the case of an object falling with constant acceleration, the velocity of the object will progressively increase over time.

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Explanation:

If the displacement of an object is proportional to the square of the time taken then the body is moving with uniformly accelerated motion as it will follow Newton's second equation of motion for a particular initial velocity, which can be given by, s=ut+21at2.

hope this is helpful to you