in the double-slit experiment with electrons, suppose that the observer uses a detector to determine through which slit the electron actually passes. does this affect the outcome of the experiment, and why or why not?

A bullet is fired upward with an initial velocity of 100 m/s. What will be it’s velocity when it hit the ground?

Zero. It is sitting on the ground.   This would almost always “assume” a friction-less environment where the only force acting on the bullet is gravity.  In this case, it would be 100 m/s immediately before hitting the ground. (zero once it comes to rest)

Answer:

i = -12.7 cm; h =  5.07 cm

Explanation:

1. Find the focal length

The focal length of a concave spherical mirror is half of its radius of curvature.

f = ½r = ½ × 34.0 cm = 17.0 cm

2. Find the image distance

A convex mirror produces a virtual image behind the mirror, so the image distance is negative.

\(\begin{array}{rcl}\dfrac{1}{o} + \dfrac{1 }{i} & = & \dfrac{1}{f}\\\\\dfrac{1}{50.0} + \dfrac{1 }{i} & = & \dfrac{1}{-17.0}\\\\\dfrac{1}{i} & = & \dfrac{1}{-17.0} - \dfrac{1}{50.0}\\\\& = & \dfrac{50.0 - (-17.0)}{500\times(-17.0)}\\\\& = & \dfrac{67.0}{-850}\\\\i & = & \dfrac{-850}{67.0}\\\\& = & \textbf{-12.7 cm}\\\end{array}\)

3. Find the image size

\(\begin{array}{rcl}\\\\\dfrac{h_{\text{i}}}{ h_{\text{o}}} & = & -\dfrac{i}{o} \\\\\dfrac{h_{\text{i}}}{ 20.0} & = & -\dfrac{-12.7}{50.0} \\\\h_{\text{i}} & = & 20.0 \times \dfrac{12.7}{50.0}\\\\& = & \textbf{5.07 cm}\\\end{array}\)

Answer:

Initial velocity, u = 23.33 m/s

Explanation:

Given the following data;

Acceleration = 2.5 m/s²

Distance = 4 km to meters = 4000 meters

Time = 0.8 mins to seconds = 0.8 * 60 = 48 seconds.

To find the initial velocity, we would use the second equation of motion;

\( S = ut + \frac {1}{2}at^{2}\)

Where;

S represents the displacement or height measured in meters.

u represents the initial velocity measured in meters per seconds.

t represents the time measured in seconds.

a represents acceleration measured in meters per seconds square.

Substituting into the equation, we have;

4000 = u*48 + ½*2.5*48²

4000 = 48u + 1.25*2304

4000 = 48u + 2880

48u = 4000 - 2880

48u = 1120

Initial velocity, u = 1120/48

Initial velocity, u = 23.33 m/s

Answer:

The initial velocity of the ball is +38.0 m/s. The final velocity is -27.0 m/s.  

momentum = mass x velocity

(mass x final velocity) – (mass x initial velocity)

(1.5)(-27) – (1.5)(38) = -97.5

The impulse applied to the ball is -97.5 kg m/s

impulse = force x time interval

force = impulse/time interval

-97.5/0.45 s = - 216.6  

The force applied was 216.6 N.

Answer:

Hand ball ?

Explanation:

The frequency of the minute hand is 1/60 Hz. Given that the minute hand of a clock completes one revolution in one hour and there are 3,600 seconds in one hour.

To calculate the frequency of the minute hand: Frequency of the minute hand = No. of revolutions per secondFirstly, let us calculate the number of revolutions of the minute hand in one second.1 hour = 60 × 60 = 3600 secondsIn one hour, the minute hand completes 1 revolution. So, in 1 second, the minute hand completes 1/3600 of the revolution.Now, we can calculate the frequency of the minute hand.

Frequency of the minute hand = No. of revolutions per second Frequency of the minute hand = 1/3600 HzTo calculate the frequency of the minute hand, we can use the following steps: Step 1: Calculate the number of revolutions of the minute hand in one second.1 hour = 60 × 60 = 3600 seconds In one hour, the minute hand completes 1 revolution.

To know more about frequency visit:

https://brainly.com/question/31938473

#SPJ11

The initial momentum of the ball is 15 Kgms-1.

In Physics, the term momentum is the product of mass and velocity. Momentum is a vector quantity. This implies that momentum possess both magnitude and direction.

Hence, we often write; p = mv

Where:

p = momentum

m = mass

v = velocity

The initial momentum therefore is;

p = 1.25 kg × 12 m/s = 15 Kgms-1

Learn more about momentum: https://brainly.com/question/904448

Answer:

Sound

Amplitude Wave

Pitch

Strenght

Explanation:

Answer:

365 days

So The Final Answer is a Year

D is the answer

Explanation:

Answer:

C one month

Explanation:

Two factors. The independent variable is the light colour and the dependent variable is the mood. The ambient colour is not a factor as it is being controlled in each room.

A within-subjects experiment is used to assess the effect of light colour on mood. The experiment has a single light bulb with three different ambient colour schemes. The experiment features three rooms each with a different light bulb, there are factors in this experiment.
In this within-subjects experiment designed to assess the effect of light colour on mood, there is 1 factor being manipulated, which is the ambient colour of the light bulb.

Visit here to learn more about independent variable:

brainly.com/question/29430246

#SPJ11

To compute the acceleration due to gravity on the surface of Venus, we can use the formula for gravitational acceleration:
acceleration due to gravity = (G * mass of planet) / (radius of planet^2)


Given that the mass of Venus is 81.5% that of the Earth, we can calculate the mass of Venus as follows:
mass of Venus = (81.5/100) * mass of Earth. Similarly, the radius of Venus is 94.9% that of the Earth, so we can calculate the radius of Venus as follows:
radius of Venus = (94.9/100) * radius of Earth
Now, substitute these values into the formula for gravitational acceleration:
acceleration due to gravity on Venus = (G * mass of Venus) / (radius of Venus^2)
Finally, calculate the acceleration due to gravity on Venus using the given values and the formula.

To know more about gravitational visit:

https://brainly.com/question/3009841

#SPJ11

Answer:

His acceleration during the first five seconds before reaching terminal velocity = (W - D)/m

Explanation:

The terminal velocity is the maximum steady velocity attained by a body falling freely with increasing velocity from rest in a fluid, such as air or water

The net force, F acting on the body falling through the fluid is given as follows;

F = Weight force, W, from gravity - Drag force, D, from the fluid

F = W - D

Given that F = Mass, m × Acceleration, a, we have;

F = m × a

The acceleration, a = F/m = (W - D)/m

His acceleration during the first five seconds before reaching terminal velocity = (W - D)/m.

When an airplane travels 640 miles from Topeka to Houston in 3. 2 hours, going against the wind. The return trip is with the wind and takes only 2 hours. Then the rate of the airplane with no wind is 260 miles/hr, and the rate of the wind is 100 miles/hr

Let Va is the velocity of the airplane

Va is the velocity of the wind

When flying against the wind then

(Va+Vw)*(3.2 hours) = 640

3.2Va + 3.2Vw = 640

3.2Vw = 640 - 3.2Va

Vw = 200 - Va----------------(1)

When flying with the wind:

(Va-V)*(2 hours) = 640km

2Va - 2Vw = 640

Va - Vw = 320 ----------------(2)

Putting the value of VW in equation (2) we get

Va - (200-Va) = 320

2Va = 320 +200

2Va = 520

Va = 260

Putting this value in equation (2)

Vw =Va - 360

Vw = 100

Therefore the rate of the airplane with no wind is 260 miles/hr, and the rate of the wind is 100 miles/hr

Learn more about rates:

https://brainly.com/question/26046491

#SPJ4

The force exerted on the person's feet when he lands if he stops in 0. 25 seconds is found to be 480 N.  

Force may be characterized as a type of circumstance that significantly deals with the pushing or pulling of an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects.

According to the context of this question,

The mass of a person, m = 60 Kg.

The velocity of a person, v = 2.0 meters/sec.

The time is taken, t = 025 seconds.

The formula for calculating force is as follows:

          = 60 × 2 ÷ 0.25 = 480 N.

Therefore, the force exerted on the person's feet when he lands if he stops in 0. 25 seconds is found to be 480 N.

To learn more about Force, refer to the link:

https://brainly.com/question/12970081

#SPJ4

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.

To know more about damping ratios, refer here:

https://brainly.com/question/31463018#

#SPJ11

Answer:

4 kg

Explanation:

because when you go the moon you lose 6 times your weight because of the gravitational pull

Answer:

16.3333333 newtons

Explanation:

on earth it would 98 newtons

Answer:

Its also know as atomic mass its the mass of isotopes.

Explanation:

relative atomic masses of sources in the local environment of the Earth's crust and atmosphere as determined by the atomic weight.

The phase defig in an resistor electrical circuit refers to the phase difference between the voltage and the current.

In a resistor circuit, the voltage (vr) and the current (ir) are related by Ohm's law: vr = irR, where R is the resistance of the resistor. To find vr(t) and ir(t), we need to know the time-dependent behavior of the voltage and the current.

Assuming that the circuit is driven by a sinusoidal voltage source with a frequency of ω, we can express the voltage and the current as vr(t) = Vrms*cos(ωt + φv) and ir(t) = Irms*cos(ωt + φi), where Vrms and Irms are the root-mean-square values of the voltage and the current, and φv and φi are the phase angles of the voltage and the current, respectively.

To find vr(t) and ir(t), we need to determine Vrms, Irms, φv, φi, and R. Once we have these values, we can use the above equations to calculate vr(t) and ir(t).

To determine the phase difference between vr(t) and ir(t), we need to calculate the phase angle φ = φv - φi. The phase angle represents the difference in time between the peaks of the voltage and the current waveforms.

In summary, the phase defig in an electrical circuit refers to the phase difference between the voltage and the current.

To find vr(t) and ir(t), we need to know the time-dependent behavior of the voltage and the current, which can be expressed in terms of Vrms, Irms, φv, φi, and R. The phase difference between vr(t) and ir(t) can be calculated as φ = φv - φi.

For more information on resistor kindly visit to

https://brainly.com/question/31137305

#SPJ11

Therefore, the mass of the sphere with a radius of 3.49 cm and the same density as nuclear matter is 4.65 ✕ 10^12 kg.

The density of nuclear matter is given as;

ρ = 2.30 ✕ 10^17 kg/m³

The formula for the volume of a sphere is;

V = (4/3)πr³ Where

r is the radius of the sphere.

Let's first convert the radius of the sphere to meters;

r = 3.49 cm = 0.0349 m

The volume of the sphere can be calculated as;

V = (4/3)π(0.0349 m)³ = 2.02 ✕ 10^-5 m³

The formula for the mass of an object is;

m = ρV

Substitute the given values;

m = (2.30 ✕ 10^17 kg/m³)(2.02 ✕ 10^-5 m³)

   = 4.65 ✕ 10^12 kg

Learn more about nuclear matter from the given link:

https://brainly.com/question/33522354

#SPJ11

Answer:

D

Explanation:

LA FUERZA NETA ES LA FUERZA TOTAL DE EMPUJE MENOS EL PESO DEL

COHETE.

\(F_{y}\) = 700000 N(sen 90° - 20°) - 560000 N = 97785 N

The approximate vertical component of the net force that is propelling the rocket away from Earth is 112,000 N. Option B is correct.

The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. The thrust force is pointing upwards at an angle of 20 degrees, and the weight of the rocket is pointing downwards. The thrust force is the force that is generated by the rocket engine. It is the force that propels the rocket upwards.

The weight of the rocket is the force of gravity acting on the rocket. It is the force that pulls the rocket downwards. The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. If the net force is positive, the rocket will accelerate upwards. If the net force is negative, the rocket will accelerate downwards. If the net force is zero, the rocket will remain at rest.

net force = thrust force + weight

vertical component of net force = thrust force * cos(angle)

vertical component of net force = 700,000 N * cos(20 degrees) = 112,000 N. Option B is correct.

To know more about the Force, here

https://brainly.com/question/31895833

#SPJ2

Owing to the fact that planets orbits the sun at different speeds, Mars and Jupiter does appear to move backwards for some period of time. The geocentric model fails to explain this.

The geocentric model of the solar system is the approach that held the earth rather than the sun as the center of the solar system. The geocentric model was favored by most of the early astronomers.

However, as popular as the geocentric model of the solar system was, it failed to explain the phenomenon of retrograde motion which includes the apparent backward movement of Mars and Jupiter  for some period of time.

Learn more: https://brainly.com/question/6284546

Answer:

My guess is

Explanation:

C or Mars and Jupiter appeared to move backwards for some period of time

B or The stars appeared to move

Sorry if i'm wrong

the number of neutrons may b 21

Answer:

The 1st reaction is synthesis and the 2nd reaction is a double displacement.

The phenomenon of echo of sound waves is due to reflection. The correct answer is Option A.


Echo is the reflection of sound waves off a surface. When sound waves hit a surface, they bounce back or reflect off that surface, creating an echo. This is similar to how light reflects off a mirror.

The reflected sound waves can be heard as an echo if the distance between the source of the sound and the reflecting surface is large enough for the reflected sound to be heard after the original sound. The reflection of sound waves is also what allows us to hear our own voices when we speak in a room with hard surfaces, such as a bathroom or an empty room.

Learn more about echo here: https://brainly.com/question/19579065.

#SPJ11

When one mole of ammonium is mixed with 5 moles of ammonium sulfate, there are 10 ammonium ions present.

When one mole of ammonium is mixed with 5 moles of ammonium sulfate, we need to determine how many ammonium ions are present.

First, let's determine the chemical formula of ammonium sulfate. Ammonium has a chemical formula of NH4+, and sulfate has a chemical formula of SO4^2-. To balance the charges, we need two ammonium ions for every sulfate ion. Therefore, the chemical formula of ammonium sulfate is (NH4)2SO4.

Next, we need to determine the number of moles of ammonium sulfate present when one mole of ammonium is mixed with 5 moles of ammonium sulfate. Since the molar ratio between ammonium and ammonium sulfate is 1:5, we can multiply the number of moles of ammonium by the ratio.

So, 1 mole of ammonium * 5 moles of ammonium sulfate/1 mole of ammonium = 5 moles of ammonium sulfate.

Finally, we need to determine the number of ammonium ions present in 5 moles of ammonium sulfate. Since there are 2 ammonium ions per mole of ammonium sulfate, we can multiply the number of moles of ammonium sulfate by 2.

So, 5 moles of ammonium sulfate * 2 ammonium ions/mole of ammonium sulfate = 10 ammonium ions.

To learn more about ammonium

https://brainly.com/question/14528032

#SPJ11

The slope of song 2's graph between minute 6 and 7 is positive.

The slope of a graph represents the rate of change between two points on the graph. In this case, we are looking at the slope of the graph of song 2 between minute 6 and minute 7.

Based on the shape of the graph, we can see that the line is trending upwards from minute 6 to minute 7.

Therefore, the slope is positive. This means that as time increases by one minute, the value on the y-axis (likely representing the volume or intensity of the song) is also increasing.

In other words, the song is getting louder or more intense over the course of this minute.

For more such questions on positive, click on:

https://brainly.com/question/29223620

#SPJ11

The motorcycle and the car are moving in opposite directions, so their velocities are different.

Speed is the rate in which anyone travel.

In everyday use and in the kinematics, the speed of to every objects is the magnitude of the change of  its own  positions over the time  or the magnitude of the change of its position per unit of the  time;  thus a scalar quantity.

A motorcycle is being driven by to the north on a road moving in the north at 40m  per 1 hour. A car is driving on the same height the  road moving at the  south at 40m  her 1 hour.

The motorcycle and a car are moving in to the opposite directions, so the velocities are  different from each other.

As north and south both are  opposite directions.

To know more about speed click-

https://brainly.com/question/13943409

#SPJ1

Answer:

Mercury is a metal that is used in

Mercury can be seen as an evening "star" near the sun's setting point or as a morning "star" near the sun's rising point. The evening star was given the name Hermes, and the morning star was given the name Apollo, since the ancient Greeks thought they were two separate things. Mercury, the Roman god's messenger, is the planet's name.

The surface charge density on the inner surface of the largest shell is +0.95 C/m2. Therefore option B is correct.

All charges will reside on the outer surface of all shells because shells are conducting.

Given that the inner shell has a net charge of -1C, the middle shell has a net charge of -2C, and the outer shell has a net charge of -3C, the total charge enclosed by the largest shell is (-1C) + (-2C) + (-3C) = -6C.

The total charge on the inner surface of the largest shell will be +3C (due to induction of charge)

Therefore,

Charge density (σi) = +\({3C/4\pi (0.5)^2\)

                                = \(0.955\ c/m^2\)

Therefore, the surface charge density on the inner surface of the largest shell +\(0.955\ c/m^2\) is correct.

Know more about density:

https://brainly.com/question/29775886

#SPJ4