Why is an atom considered to have a neutral charge

The work done by the torque to stop the wheel can be calculated using the formula:

Work = Change in rotational kinetic energy
The initial rotational kinetic energy of the wheel can be calculated using the formula:

Rotational kinetic energy = 1/2 * rotational inertia * angular velocity^2

Plugging in the given values, we get:

Rotational kinetic energy = 1/2 * 2.3 kg.m^2 * (2π * 6.5 rev/s)^2
= 1/2 * 2.3 kg.m^2 * (2π * 6.5/60 rad/s)^2 (since 1 revolution = 2π radians)
= 16.54 J

The final rotational kinetic energy of the wheel is zero since it has been brought to a stop.

Therefore, the work done by the torque to stop the wheel is:

Work = Change in rotational kinetic energy
= Final rotational kinetic energy - Initial rotational kinetic energy
= 0 - 16.54 J
= -16.54 J

Note that the negative sign indicates that the work done by the torque is in the opposite direction of the applied force (i.e., it is dissipative). Therefore, the answer is E. -3840 J is not a possible answer since work done cannot be negative in such a scenario.

Learn more about kinetic energy here:

https://brainly.com/question/26472013

#SPJ11

Answer:

The cumulative distance that the bird travel is 13.33 Km

Explanation:

Given that,

Velocity of runner = 3.4 km/hr

Distance = 8 km

Velocity of bird = 17 km/hr

Let x is the distance from the origin where the runner run into the bird

We need to calculate the value of x

Using time of runner and bird

\(t_{r}=t_{b}\)

\(\dfrac{d_{r}}{v_{r}}=\dfrac{d_{b}}{v_{b}}\)

Put the value into the formula

\(\dfrac{x}{3.4}=\dfrac{8+(8-x)}{17}\)

\(17x=3.4\times8+3.4(8-x)\)

\(17x=27.2+27.2-3.4x\)

\(17x+3.4x=54.4\)

\(x=\dfrac{54.4}{20.4}\)

\(x=2.67\)

We need to calculate the cumulative distance that the bird travel

Using distance of bird

\(d_{b}=16-x\)

Put the value into the formula

\(d_{b}=16-2.67\)

\(d_{b}=13.33\ km\)

Hence, The cumulative distance that the bird travel is 13.33 Km

Answer:

A. Increase the distance between the objects.

D. Decrease the mass of one of the objects.

Explanation:

The smaller the mass of an object the less gravity it has and the farther away two objects are the less gravitational force

Answer:

Climate scientists compare the tree growth records to local weather records. For locations where a good statistical match exists between tree growth and temperature or precipitation during the period of overlap, the ring widths can be used to estimate past temperature or precipitation over the lifetime of the tree.

Answer:

true

Explanation:

Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.

Hope this helps

The electric field strength at the point p is E = 1/(4πε₀) (q/9s²) N/C

The electric field strength at point p due to two charges (q, -q) at a distance s apart can be expressed as,

E = 1/(4πε₀) (q/s²).

Since the charges are moved apart to a distance 3s, the electric field strength at point p can be expressed as,

E = 1/(4πε₀) (q/9s²).

The SI unit of electric field strength is newton per coulomb (N/C). Hence the electric field strength at point p due to two charges (q, -q) at a distance 3s apart can be expressed in N/C as,

E = 1/(4πε₀) (q/9s²) N/C.

learn more about electric field Refer:brainly.com/question/26446532

#SPJ4

Answer:

A 50N force must act for 4 seconds to produce the same impulse.

Explanation:

Force x time = Force × time

20 × 10 = 50 × x

x= \(\frac{20*10}{50}\)

x= 4 seconds

Gamma: 4

Infrared: 1

X-Ray: 3

Visible Light: 2

Infrared has the longest wavelength between the four options, meaning that it has the lowest frequency. Since the longer the frequency, the lower the frequency. While the shorter the wavelength, the higher the frequency.

The portions of the electromagnetic spectrum are called from greatest to lowest energy: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Microwaves (such as those used in microwave ovens) are a subset of the electromagnetic spectrum's radio wave segment.

Next would be visible light since it has the second longest wavelength out of the given options. Then it would be X-Ray. And finally Gamma since it has the shortest wavelength.

Learn more about to electromagnetic

https://brainly.com/question/17057080

#SPJ4

Answer:

10.5min

Explanation:

Given parameters:

Distance  = 4200m

Speed  = 400m/min

Unknown:

Time taken for this run  = ?

Solution:

Speed is the distance divided by the time taken.

   Speed  = \(\frac{distance }{time }\)  

  Time  = \(\frac{distance}{speed }\)  

 Now insert the parameters and solve;

 Time  = \(\frac{4200}{400}\)   = 10.5min

The closest you can be to speaker B and be at a point of perfectly destructive interference- 1.008m.

The wavelength of sound emitted by speakers

= velocity / frequency

= 344 / 172

= 2 m

For destructive interference , path difference is equal to odd multiple of  half the wavelength .

path difference = 2 / 2 = 1 m

d₂ - d₁ = 1 m

d₂ = d₁ + 1 m

d₂ = .008 m + 1

 d₂ = 1.008 m

So, the closest you can be to speaker B and be at a point of perfectly destructive interference- 1.008m.

Read more about the interference:

https://brainly.com/question/16713098

#SPJ4

The complete question is:

Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. The frequency of the waves emitted by each speaker is 172 HzHz. You are 8.00 mm from speaker A. Take the speed of sound in air to be 344 m/sm/s. What is the closest you can be to speaker B and be at a point of perfectly destructive interference?

Answer:

D. Weakest, Attractive

Explanation:

Gravitational Force is the weakest force out of the four forces, and Gravity attracts objects towards another so the answer has to be D.

Got this correct on Edge 2021.

Hope this helped!

Answer:

D

Explanation:

EDGE 2021

The maximum force that the car can experience before exceeding the maximum acceleration of 0.10 g is approximately 9.81 times the mass of the car.

The maximum force that the car can experience before exceeding the maximum acceleration of 0.10 g is in newtons, since force is measured in newtons (N) in the International System of Units (SI).

\(v = u + at\\s = ut + 1/2 at^2\\v^2 = u^2 + 2as\)

We know that the initial velocity is 30 m/s and the acceleration should be no greater in magnitude than 0.10 g, which is \(9.81 m/s^2\) multiplied by 0.10, or \(0.981 m/s^2\).

Step 1: Calculate the stopping time

\(0 = 30 - 0.981t\\t = 30 / 0.981\\t = 30.57 s\)

Step 2: Calculate the stopping distance

\(s = 30 * 30.57 + 1/2 * -0.981 × (30.57)^2\\s = 463.85 m\)

Step 3: Calculate the force required to stop the car

\(F_max = m * a_max\\F_max = m * 0.981\)

To know more about acceleration visit:-

brainly.com/question/12550364

#SPJ1

The car's speed at the top is 0.6 m/s^2

The diameter of loop d = 40 mm

The radius of loop r = 20 mm = 0.02 m

At the top position, we can write,

Weight and Normal reaction combination will provide the centripetal force i.e.

R + W = mv²/R

R = W [apparent weight = Actual weight]

2W = 2mg = mv2/r

v = √2gr

v = 2 x 10 x 0.02 = 0.6 m/s^2

Hence, the car's speed at the top is 0.6 m/s^2

Learn more about Speed here:

https://brainly.com/question/13943409

#SPJ4

Hi there!

a)
We can find the angular velocity at t = 2.0 s by plugging in this value into the equation.

\(\omega (t) = 25.0t \\\\\omega (2) = 25.0(2) = \boxed{50.0 \frac{rad}{s}}\)

b)

The angular acceleration is the derivative of the angular velocity, so:
\(\alpha (t) = \frac{d\omega}{dt} (25.0t) = 25.0\)

Thus, the angular acceleration is a constant 25 rad/s².

The JavaScript code that follows does not appear to be harmful. A malicious code is one intended to disrupt computer operations with the intention of endangering the workstation rather than serving any useful purpose.

It's a hazard that antivirus software might not be able to stop on its own. All antivirus software cannot address all infections brought on by malicious code, which is distinct from malware, according to Kaspersky Lab.

An application backdoor is made possible by malicious code that is intended to give thieves unauthorized remote access to the targeted system. Hackers are able to access personal information stored on the network as a result.

To know more about Malicious visit:-

brainly.com/question/9538486

#SPJ4

Answer:

Explanation:

Matter can be classified according to physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. A physical change involves the conversion of a substance from one state of matter to another, without changing its chemical composition.

The speed of water at the end of spillway is 58.5 (m/s)

Calculation:

According to the Bernoulli equation:

P/x + v^2/2 + gz = constant

The initial vertical height of 175 m

However, the atmospheric pressure and density are essentially the same at the peak and bottom of the falls. Therefore,

v^2/2 + gz = constant , so:

v_bottom^2/ 2 = v_top^2/2 + gz, or:

v_bottom = √(v_top^2 + 2gz) = √(v_top^2 + 2g*175)

If v_top ≈ 0, then:

v_bottom = √(2gz) = √(2*9.8*175) = 58.5  (m/s)

What is the flow rate of water?

The amount of water that might theoretically flow out of your kitchen faucet or bathtub each minute is measured by your water flow rate, sometimes referred to as the gallons per minute (GPM). the flow rate is affected by a number of variables, but the household size is the most important one.

Therefore,  the highest possible speed of the water at the end of the spillway is 58.5m/s

To learn more about Bernoulli equation, visit:

https://brainly.com/question/15396422

#SPJ4

Answer: it is located over Ellesmere Island, Canada

Explanation

it is now drifting away from North America and toward Siberia.

Answer:ellesmere island, Canada

Answer:

AM(amplitude modulation) and FM(frequency modulation)

Explanation:

A radio frequency band is a small adjacent section of the radio spectrum frequencies, whereby channels are usually used or set aside to be used.

They are usually of two different bands called AM which is known as amplitude modulation and FM which is known as frequency modulation

Answer: velocity

Explanation:

Slope of velocity time graph = acceleration. A change in velocity = a change in acceleration. A constant velocity would mean that there would be no acceleration.

Speed and velocity aren't the exact same thing. Speed is a scalar measurement while velocity is a vector measurement. The speed of an object could be different from its velocity (ex: speed CANNOT be negative while velocity can).

An object can have a constant speed but have a changing velocity.

Answer:

velocity

Explanation:

The definition of accelerate is a change in velocity, even if the speed doesn't, a change in velocity means acceleration.

The spring constant is defined as the force required to extend a spring by a unit length. It is denoted by k.The spring constant of the given spring is 147.15 N/m.

This relationship can be represented as F=kx, where F is the force applied, x is the displacement of the spring from its equilibrium position, and k is the spring constant. In this problem, we can use the given values of the mass and the displacement of the spring to calculate the spring constant.
First, we need to calculate the force applied to the spring. This can be done using the formula F=mg, where m is the mass and g is the acceleration due to gravity. Substituting the given values, we get:
F = 0.750 kg * 9.81 m/s² = 7.3575 N
Next, we can use the formula for the displacement of the spring, which is x = ΔL = L - L₀, where L is the stretched length of the spring and L₀ is the unstretched length of the spring. Substituting the given values, we get:
x = 0.450 m - 0.400 m = 0.050 m
Finally, we can use the formula F=kx to calculate the spring constant k. Substituting the values of F and x, we get:
k =\frac{ F}{x }= \frac{7.3575 N}{0.050 m }= 147.15 N/m
Therefore, the spring constant of the given spring is 147.15 N/m.

learn more about spring constant Refer: https://brainly.com/question/13608225

#SPJ11

A.The energy of the incoming photon is: \(E_photon = (0.01m)c^2\)

B.  the energy of the photon (0.01m times c^2) is much greater than just 0.01m.

(a) To find the energy of the incoming photon, we'll use the mass-energy equivalence formula, which is E = mc^2. Since the mass of the particle increased by 1.01m after absorbing the photon, the increase in mass is 0.01m. Therefore, the energy of the incoming photon is:

\(E_photon = (0.01m)c^2\)

(b) The energy of the incoming photon is greater than 0.01m because energy has units of mass times the speed of light squared (mc^2). The factor c^2 is a very large number, so the energy of the photon (0.01m times c^2) is much greater than just 0.01m.

To learn more about photon, refer below:

https://brainly.com/question/20912241

#SPJ11

The actual volume of the cone is 160/3 cm3, and it increases from the center of the base to the tip. The form of a cone with a dotted line.

The amount of quantity that is gained by the solid or object when it is located in three-dimensional space is referred to as the volume of the solid.

The volume of the cone may be calculated using the formula below, which is as follows:

\(V=\frac{\pi r^2 h}{3}\)

The radius of the cone's base is denoted by the symbol (r), while the height of the cone is denoted by the symbol (h).

The picture of the cone, the volume of which has to be determined, is attached further down.

The height of the cone is 10 centimeters, while the radius measures 4 centimeters. Thus, enter these numbers into the formula shown above as,

\(& V=\frac{\pi(4)^2(10)}{3} \\& V=\frac{160}{3} \pi \mathrm{cm}^3\)

As this is the case, the precise volume of the cone in which the outline of a cone with a dotted line rises from the center of the base to the tip is 160/3 cm3.

Learn more about the volume of solids here;

brainly.com/question/1355179

#SPJ1

The momentum of the probe after the retrorocket ceases to fire is 9.9 * 10^7 Kg m/s

We know that the momentum of an object has to do with the product of the mass and the velocity of an object. The momentum of an object is a vector quantity and the direction of the momentum is the direction of the velocity of the object that is in motion.

According to the Newton second law of motion, we know that the rate of change of the momentum is equal to the impressed force that is acting on the body.

We know that;

\(F_{t}\) = \(p_{f}\) -\(p_{i}\)

F = force

t = time taken

\(p_{f}\)= final velocity

\(p_{i}\) = initial velocity

\(p_{f}\) = \(F_{t}\)  + -\(p_{i}\)

\(p_{f}\) = (2.0 * 10^6 * 12 s) + 7.5 * 10^7

\(p_{f}\)  = 2.4 * 10^7 + 7.5 * 10^7

\(p_{f}\)  = 9.9 * 10^7 Kg m/s

Hence, the momentum of the retrorocket is 9.9 * 10^7 Kg m/s.

Learn more about momentum:https://brainly.com/question/24030570

#SPJ1

Missing parts;

A  space probe is traveling in outer space with a momentum that has a magnitude of  7.5 * 10^7 kgm/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 2.0  * 10^6 N and a direction opposite to the probe's motion. It fires for a period of 12 s. Determine the momentum of the probe after the retrorocket ceases fire.

Answer:

Telescope, Probware, etc,..

Answer: probeware

Explanation:

the answer is probeware

if you mean by the options,

A. a ruler

B. a thermometer

C. a beaker

D. probeware

Answer:

The answer is D

Explanation:

A must always be taller than B  for the skateboarder to have just enough energy to complete the loop.

Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center.

To cancel out gravitational acceleration at point  B, the skateboarder should have centripetal acceleration, that is, he should have some amount of kinetic energy.

Hence, from conservation of energy, it may be written that:

Potential energy at point A = (potential energy + kinetic energy) at point B

mgh₁ = mgh₂ + mv²/2

Hence, h₁ > h₂

That is, Height of A > height of B

Hence,  A must always be taller than B  for the skateboarder to have just enough energy to complete the loop.

Learn more about centripetal acceleration here:

https://brainly.com/question/14465119

#SPJ6

The statement "wide angle lenses are also referred to as telephoto lenses" is false. Wide angle lenses and telephoto lenses are two different types of lenses used in photography .A wide-angle lens has a shorter focal length than a standard lens.

These lenses capture a larger field of view, allowing you to photograph more of the scene in front of you. Wide-angle lenses are used to photograph landscapes, architecture, and interiors, among other things. They have a broader depth of field, which means that more of the image is in focus. A telephoto lens is a type of lens with a longer focal length than a standard lens.

They have a narrower field of view, which makes them ideal for photographing subjects that are far away. Telephoto lenses allow you to zoom in and capture more detail from a distance. They are commonly used for sports photography, wildlife photography, and portrait photography .Wide-angle lenses and telephoto lenses are two distinct types of lenses used in photography, so they are not referred to interchangeably.

To learn more about lenses:

https://brainly.com/question/32156996

#SPJ11

Answer:

ΔL = L0 C ΔT

We need to find C the constant of expansivity

C = ΔL / (L0 ΔT)

C = .96 / (15.04 * 65) = 9.82 * 10^-4 / deg C