if momentum is conserved during inelastic collision of the two cars, what would you expect the ratio of final to initial total momentum be? calculate the ratio of final to initial total momentum. does the ratio agree with your expectation?

A rock is tossed straight up from a height of 1.20 m above the ground with an initial speed of 7.54 m/s. It will take 0.15 seconds to hit the rock ground

height = displacement = 1.20 m

initial speed = u = 7.54 m/s

final speed = v = 0

time = ?

Using kinematic equation

s = u*t + 1/2 * g * [tex]t^{2}[/tex]

1.20 = 7.54 t + 1/2 * 9.8 *  [tex]t^{2}[/tex]

= 4.9  [tex]t^{2}[/tex] + 7.54 t  - 1.20

t = 0.15 seconds

It will take 0.15 seconds to hit the rock ground

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The distortion current is then equal 0.826 A.

The total rms current of the input current to a rectifier is 5 A. The fundamental current has an rms value of 3 A.

The fundamental current and distortion current are both made up of harmonics. We can find their values by taking the square root of their respective rms values:

5 A = 1/√5

= 2.23 A

3 A = 1/√3

= 1.333 A

The distortion current is then equal to 1.333 * √2 = 0.826 A

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Answer:

The fact that change in moment is equal to force times duration can be derived from Newton's Second Law of Motion (assuming that the net force on the object is constant.)

Explanation:

Let [tex]m[/tex] denote the mass of an object. Let [tex]\Delta v[/tex] denote the change in the velocity of this object. The change in momentum of this object will be [tex]\Delta p = m\, \Delta v[/tex].

Let [tex]F_{\text{net}}[/tex] denote the net force (resultant force) on the object. Let [tex]a[/tex] denote the acceleration of this object. By the law of motion, [tex]F_{\text{net}} = m\, a[/tex], or equivalently, [tex]a = (F_{\text{net}} / m)[/tex].

Assume that this net force is constant and is exerted on this object over a period of [tex]\Delta t[/tex]. With an acceleration of [tex]a = (F_{\text{net}} / m)[/tex], the velocity of this object would have changed by:

[tex]\begin{aligned}\Delta v &= a\, \Delta t \\ &= \left(\frac{F_{\text{net}}}{m}\right)\, (\Delta t) \\ &= \frac{F_{\text{net}}\, \Delta t}{m}\end{aligned}[/tex].

Multiply both sides of this equation by the mass [tex]m[/tex] of the object to obtain:

[tex]m\, \Delta v = F_{\text{net}}\, \Delta t[/tex].

Note that [tex]m\, \Delta v[/tex] is equal to the change in momentum ([tex]\Delta p = m\, \Delta v[/tex].) Therefore, if the net force [tex]F_{\text{net}}[/tex] on the object is constant, the change in the momentum [tex]\Delta p[/tex] over time period [tex]\Delta t[/tex] will be equal to [tex]F_{\text{net}}\, \Delta t[/tex] (net impulse on the object.)

The the magnitude of the momentum  is  514295  Kg·m/s.

Momentum is the product of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction.

Given parameters:

X-component of the momentum : Pₓ = 460000 Kg.m/s

Y-component of the momentum : [tex]P_Y[/tex]= 460000 Kg.m/s

We have to find; the magnitude of the momentum : P = ?

We know that momentum is vector quantity and the magnitude of the momentum : P = √( Pₓ² + [tex]P_Y[/tex]²)

= √(460000² + 230000²) Kg.m/s .

= 514295  Kg·m/s .

Hence, the the magnitude of the momentum  is  514295  Kg·m/s.

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The electric field must be this large, 67*10^-5 Volts / meter,  to produce a 1.00mV voltage between the ends of the antenna that is 1.5m long.

It can be considered as an electric property assosicated with each point in the space where a charge is present in any form. Electric field is by definition the force per unit charge, so that multiplying the field times the plate separation gives the work per unit charge, which is by definition the change in voltage.

How to calculate how large must the electric field?
Electric field = Voltage / length
= 1 x 10^-3 volts / 1.5 meters

= 67 * 10^-5 Volts / meters (rounded)

The electric field should be this large 67*10^-5 Volts / meter to produce 1mV voltage between the ends of the antenna that is 1.5m long.

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The effect of - 0.1 miles tolerance on a 3595 miles radius of earth's surface area calculation is 0.00556 %

SA = 4 π r²

SA = Surface area of a sphere

r = Radius

Actual surface area,

r = 3595 mi

SA = 4 * 3.14 * 3595²

SA = 162325754 mi²

Surface area with tolerance,

r = 3595 - 0.1

r = 3594.9 mi

SA = 4 * 3.14 * 3594.9²

SA = 162316723.5 mi²

% error = ( Actual value - Error value ) / Actual value

% error = ( 162325754 - 162316723.5 ) / 162325754

% error = 9030.5 / 162325754

% error = 5.56 * [tex]10^{-5}[/tex]

% error = 0.00556 %

Therefore, the effect of - 0.1 miles tolerance on a 3595 miles radius of earth's surface area calculation is 0.00556 %

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The motion is critically damped is 0.69 m.

The mass of a body is the amount of matter it contains. It is a scalar value. Weight: A body's weight is the force with which the earth attracts it. It is the effect of gravity.

The property of matter that measures its resistance to acceleration in physics. The mass of an object is roughly equal to the number of atoms in it. The kilogram is the fundamental unit of mass measurement. Weight = mass multiplied by gravity's acceleration

critically damped: βω0.

x = [tex]$\left(C_1+c_2 t\right) e^{-\beta t}$[/tex] = 2 J t = 0

[tex]$\dot{x}=\left(c_1+c_2 t\right)\left(-\beta e^{-\beta b}\right)+c_2 e^{-\beta t}$[/tex] = 0 st = 0

[tex]$c_1=2 . \quad c_2=\beta \cdot 2$[/tex]

Now, [tex]$\omega_0=\sqrt{\frac{b}{m}}$[/tex]

Let the equation be mg = k . 2

so, √g/2 = √k/m = [tex]$\omega_0$[/tex]

[tex]$c_1[/tex] = 2, [tex]$c_2[/tex] = √(8/2) × 2 = 2√5

x = [tex]$(2+2 \sqrt{5} t) e^{-\sqrt{5} t}$[/tex] or [tex]$(2+2 \sqrt{3}) e^{-\sqrt{s}}$[/tex] = 0.69 m

Therefore the motion is critically damped is 0.69.

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The pressure of the gas in the rigid container is doubled, then the temperature will also increase by two times.

According to ideal gas equation,

PV = nRT

Where, P is pressure, V is volume, n is the moles, T is temperature of the gas and R is the gas constant.

A certain volume of gas is put in the container means that the volume and the mole of the gas are constant so, we can write,

PV = Constant,

P₁/T₁ = P₂/T₂

Let us say that P₁ and V₁ are initial parameters, If the volume of the container is doubled, then, P₂ = 2P₁,

So,

P₁/T₁ = 2P₂/T₂

T₂ =  2T₁.

So, the temperature of the gas will be increase by two times,

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The earth's atmosphere is transparent to most waves is visible part of the spectrum(option -1).

To some microwave radiation wavelengths, but not to others, the Earth's atmosphere is transparent. The Earth's atmosphere is more easily penetrated by the longer wavelength microwaves than by the shorter ones (wavelengths more akin to radio waves).

When compared to open, closed, or partially closed windows, the Earth's atmosphere is only transparent to particular wavelengths of light. All of the radio waves, the majority of the IR light, and all of the visible light pass through the atmosphere.

It should be noted that the atmosphere is generally opaque in the infrared spectrum and completely transparent in the visible and infrared bands. In our hypothetical case, this would be entirely transparent (no absorption) in the solar band and uniformly absorb (and emit) throughout the earth emission band.

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When a body is moving in the same direction, its relative speed is 6m/s, while when it is moving in the opposite direction, it is 42 m/s.

The units used to measure speed and velocity are the same. The meter is the SI unit for measuring both distance and displacement. The second is the second as defined by the International System of Units. Two meters per second divided by two is the SI unit of velocity and speed.

It is calculable using an intermediary reference frame. The velocity vector sum can be used to represent this simply. vAB = vA - vB is the way to express the relative velocity formula.

velocity is the same as the relative velocities of A and B.

A=24,B=18

Vab=24-18=6m/s

In opposite direction

Vab=24-(-18)=42m/s

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The maximum force (Fmax) from the bat which hits the ball with a speed of 40 m/s of weight 0.145kg is 5.8 N.

A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects. The force is no longer felt by the two objects when the interaction ends. Only when there is interaction do forces actually exist.

Given,

mass of ball is 0.145 g.

speed of ball after being hit is 40 m/s.

maximum force =?

time taken to hit the ball be 1 s

By using the formula, F = ma

where,

F = force from the bat

m = mass of the ball

a = acceleration of the ball

But,

a = s/t

where,

s = speed of the ball being hit

t = time taken

F = ms/t

F = 0.145 x 40 / 1

F = 5.8

∴ force from bat is 5.8 N.

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The velocity of the pumpkin 3.0 seconds after it was dropped is 29.4m/s.

The formula for the first equation of motion is expressed as;

v = u + gt

Where v is final velocity, u is initial velocity, g is acceleration due to gravity ( g = 9.8m/s² ) and t is time elapsed.

Given the data in the question;

Since the pumpkin was initially at rest before it was dropped.

To determine the velocity of the pumpkin after 3 seconds, plug the given values into the above equation of motion.

v = u + gt

v = 0 + ( 9.8m/s² × 3.0s )

v = 9.8m/s² × 3.0s

v = 29.4 m/s

Therefore, the final velocity is 29.4 meter per seconds.

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A passenger on a train traveling at a ground speed of 18.0 m/s in the opposite direction of the first train can hear the frequency approach at 302.05 Hz.

The number of waves that pass a fixed place in a unit of time is referred to as frequency in physics. It also indicates how many vibrations or cycles a body in periodic motion makes in a given amount of time.

Speed is 18.0 m/s.

Consider a train moving through still air at a speed of 30.0 m/s. The train whistle produces a note with a 262 Hz frequency.

We must determine the periodicity.

Using the frequency formula

f' = f(v + [tex]v_{p}[/tex]/v - [tex]v_{s}[/tex])

Fill out the formula with the value,

f' = 262(3441+18/344-30)

f' = 302.05Hz

Thus, 302.05 Hz is the frequency.

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Answer:

a = 36 m/s

Explanation:

Given:

F = 9 N

m = 0.25 kg

a= ?

Use the equation:  

F = ma (divide by m on both sides to get a alone)

a = F/m= 9/0.25 = 36 m/s

The changes (magnitude and direction) of the linear momentum of the object .-229.8 Kgm/s

The conservation of momentum states that, within a few problem domains, the quantity of momentum remains regular; momentum is neither created nor destroyed, but best modified through the movement of forces as described by means of Newton's laws of motion.

Calculation:-

Mass of object m₁ = 5 kg

velocity v₁ = 30 cos40° m/s

velocity =  - 30 cos40°m/s

Change in linear momentum = mass (v final - v initial)

                                                  = 5 ( - 30 cos40° -  30 cos40° )

                                                  = 5 ( - 30 × 0.766 -  30 0.766 )

                                                   = 5 ( - 30 × 0.766 -  30 0.766 )                                                      

                                                    = -229.8 Kgm/s

The regulation of conservation of momentum states that in an isolated machine the full momentum of or more bodies appearing upon each other stays regular except an outside force is applied. therefore, momentum can neither be created nor destroyed.

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Dropping sandbags does not change cart speed. After the bag drops no energy leaves the system, so the cart always returns to the equilibrium point with the same kinetic energy and thus the same maximum velocity.

This means that the equilibrium position of the horizontal spring is independent of the mass attached to it. For example, if a spring is replaced with a rigid spring of the same natural length, the same considerations apply. That is, the equilibrium position does not change. The duration of the pendulum does not depend on the mass of the weight.

Changing the concentration of something in equilibrium does not change the equilibrium constant. The only thing that changes the equilibrium constant is a change in temperature. Changing the concentration of something in the mixture changes the position of the equilibrium.

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The separation between two similar points (adjacent crests) in two cycles of a waveform signal traveling across space or along a wire.

Here are some wavelength examples: Yellow Light is a prime example. The wavelength range of all visible light is 400 to 700 nanometers (nm). The wavelength of yellow light is 570 nanometers or such. Wavelength (nm)

The Attempt at a Solution

My givens are: λ = 690nm L= 2.6m x438mm using equation x=L(

I got: 0.038 = 2.6m(690 x 10-9(4)/d) d=2.6m(690 x 10-9(4)/d)/0.038)= 1.4x10-4m

0.038 = 2.6m(690 x 10-9(4)/d) d=2.0m(690 x 10-9(4)/d)/0.038)= 1.4x10-4m

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(a) For the first 50 m:

h1 = 0.5 x a x t12

50 m = 0.5 x 9.8 m/s2 x t12

t1 = 3.19 s

Time to fall first 50 m = 3.19 s

(b) For the full 100 m:

h2 = 0.5 x a x t22

100 m = 0.5 x 9.8 m/s2 x t22

t2 = 4.52 s

Time to fall second 50 m = t2 - t1 = 1.33 s

Dropped rocks and other objects gain speed rapidly as they fall. Velocity defines the direction in which a body or object is moving. Velocity is primarily a scalar quantity. Velocity is basically a vector quantity. Rate of change of distance.

If our planet loses gravity for even 5 seconds it means the end of life on Earth as we know it. Gravity pulls objects together. The greater the mass of an object, the stronger its gravitational pull. Any submarine you choose for skydiving should be designed with movement in mind. If the weather is cool on the day of skydiving, you should choose pants that cover the entire leg. We recommend wearing sweatpants or sweatpants.

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Produced the model is the resistance of the circuits decreased as a battery voltage increased (option-B).

Ohm's Law describes how current, voltage, and resistance are related to one another. According to this, as long as the temperature doesn't change, the current flowing through a circuit is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit.

The more work a certain quantity of electrons can accomplish at a given voltage. The quantity of electrons that are presently moving through any one point in a circuit at any particular time is known as the current. At the same voltage, a larger current can perform more work. Current times voltage equals power.

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Answer:

b

Explanation:

The value of jam density is 17.864 kml.

Jam density refers to excessive visitor density while site visitors waft stops absolutely, commonly within the range of 185–250 cars in keeping with mile per lane. but, calculations approximately congested networks are greater complex and rely extra on empirical research and extrapolations from real avenues counts on on.

Density is increased with the aid of human beings joining a street from on-ramps, and this causes automobiles to gradually down, i.e. human beings are generally horrific at merging at pace. Then some humans who've been held up inside the left-hand lane flow to the center lane which causes the identical problem in the middle lane – visitors back up.

Given,

у = 90 km/ max = 3300 ven Ihr Sa Calculate Jam density,

• ІК, 4- 27 = 900 x Е. 4 allega 40 vellum) Put all valu

- 224² = 1980 4 - 28350 to a 224²-19804 + 28350 20 after folving

TH=72.14 kalho and 14a 17.864 kml.

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When  the core of a star reaches a temperature of about 100 million degrees (k), the new event named  triple-alpha process happens where the helium will begin to fuse into carbon.

The triple-alpha mechanism, which turns three helium nuclei into one carbon atom, will start to fuse helium into carbon when the temperature in the core reaches roughly 100 million degrees. There is a lot of heat produced by this.

The triple-alpha process is unusually sensitive to temperature; when the reaction's temperature is doubled, it proceeds nearly a trillion times faster! Therefore, while the fusing helium heats the core, which cannot expand to cool down, the increasing temperature prompts the helium fusion to abruptly proceed millions of times faster, which very quickly heats the core even more, which in turn prompts the helium to fuse way, way faster.

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The height of the tower is 20.68 m

Simple harmonic motion or SHM is defined as motion in which the restoring force is directly proportional to the displacement of the body from its mean position. The direction of this restoring force is always in the direction of the intermediate position. The acceleration of a particle undergoing simple harmonic motion is given by α(t) = -ω² x(t). where, ω is the angular velocity of the particle.

Using,

T = 2π√(L/g)

Where, T = period of the oscillation

L = Height of the tower

g = Acceleration due to gravity

Make L the subject of the equation

L = gT²/(4π²)

Given: T = 9.12 s

g = 9.8 m/s²

π = 3.14

Substitute into equation 2

L = 9.8(9.12²)/(4×3.14²)

L =  m

Hence the height of the tower = 20.68 m

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The braking distance does not change. Because both the kinetic energy and the frictional force are doubled.

We found that the stopping distance of a car is proportional to its kinetic energy. Energy is dissipated as heat in the brakes tires and road surface. More energy required means more stopping distance. This explains why the braking distance increases in proportion to the square of the car's speed. The kinetic energy of a car is equal to the braking force multiplied by the stopping distance.

Braking distance also depends on car speed car mass brake and tire wear and road surface. A fast heavy car with worn tires and brakes will have a longer stopping distance on wet or icy roads. Friction forces act in the opposite direction of movement, making it harder to move slowing the car down the ramp and slowing it down, thus reducing the distance covered.

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The difference between the Bohr model and the Schrödinger model is that the model electron orbitals as regions of space. Option C.

In the Bohr model, we can see that the electrons were arranged in energy levels. The energy levels are such that an electron can be promoted from a lower to a higher energy level. Each of the energy levels has a given amount of energy.

However, in the case of the Schrödinger model, we do not present the electron as resident at a particular point in space but we postulate that there is a region in space where the electron could be found.

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Slewing the aircraft at low altitude is the only way of getting the cockpit from turning black after you get so high on the x plane 11 avro rj 100 jet. These are the traditional aircraft variety.

If you fly at high altitude in an aircraft which is not pressurized (or with wrong pressurization settings), the cockpit and external views will darken and then go black. If it happens, try slewing the aircraft at low altitude (<10.000 ft) and see if the image reappears after a while.

An aircraft is a vehicle or machine that is able to fly by gaining support from the air and has cockpit. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.

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Look for radiation at long wavelengths is the best technique for learning about more distant region of our galaxy disk.

There are few stars visible if we stare perpendicular to the disk. More stars can be seen when looking from Earth towards the galactic center. This suggests a disk shape. The dust in galaxies is made up of microscopic grains of carbon, silicon, iron, aluminum, and other heavier elements. The Milky Way contains a lot of carbonaceous dust, which is quite rare in other galaxies.

The stars on the disk all orbit the galactic center in roughly the same place and direction. Halo and bulge stars likewise orbit the center of the galaxy, but their orbits are randomly inclined to the galaxy's disk. The orbital velocity of stars allows us to calculate the distribution of mass in our galaxy.

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The planets move on linear motion without acceleration. Motion in one spatial dimension is described as linear motion, often known as uniform motion or rectilinear motion.

Moving in a straight line is the motion that an object naturally exhibits. A forceless item will move in a straight line indefinitely, according to Newton's First Law of Motion.

An object is said to be moving linearly when it has a tendency to move in a straight line. Rectilinear motion is another name for linear motion. Many of the things we do every day, like walking, bowling, playing on a slide, etc., exhibit linear motion in reality.

Both the ultimate displacement and the velocity are positive, indicating that they are moving in the same direction. The link between displacement, average velocity, and time is described by the equation x = x0+(average v)t.

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Niobium wire with a 2.60 mm diameter has a maximum current capacity of 500 A while still remaining superconducting.

Current is the rate at which charge passes from one point on a circuit to another. In a circuit, a significant current flows when several coulombs or charge pass over the cross section of a wire. When the charge carriers are firmly packed inside the wire, high currents can be generated at low speeds.

Electron movement is referred to as electron current. The positive terminal receives electrons that are released by the negative terminal. Traditional current, usually referred to as just current, exhibits behavior consistent with positive charge carriers being the source of current flow. Regular current is received at the positive end and then flows to a negative terminal.

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Answer:

six months

Explanation:

Trust me on this i just answer it yesterday