According to the conservation of momentum, if a smaller football player collides with a
much larger football player, what can be said about the movement of each player after
the collision?

Answer:

A) X-rays

Explanation:

Airport security screenings use X-rays because they can penetrate through bags to see objects that are located within that are obscured through normal view.

X- rays are used to  test  body in airports. Low energy waves are used to screen baggages and human body. Thus option A is correct.

Electromagnetic spectrum is the arrangement of radiations in the order of decreasing wavelength or increasing energy and frequency. The order is radio waves, microwaves, infrared, visible, ultraviolet, x-rays and gamma rays.

x -rays are highly energetic short waves which can be easily penetrate through a body. X-ray is used in different diagnostic techniques. X-rays easily penetrate through  tissues and provide the scanned images of internal parts.

In airport security screening x-rays are used to screen baggages and human bodies. High energetic waves are causing serious health risks. Hence, lower energy x-rays are used in testing.

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Answer:

You would weigh very slightly more at sea level than at the top of a mountain, not enough for you to notice, but a measurable amount. Weight, which really means gravitational force, is proportional to the product of the masses of two objects acting on each other, in this case the giant earth and the minuscule you.

Explanation:

Answer:

The Cascadia Subduction Zone has not produced an earthquake since 1700 and is building up pressure where the Juan de Fuca Plate is subsiding underneath the North American plate.

Explanation:

At depths shallower than 30 km (19 mi) or so, the Cascadia zone is locked by friction while stress slowly builds up as the subduction forces act, until the fault's frictional strength is exceeded and the rocks slip past each other along the fault in a megathrust earthquake. Below 30 km (19 mi) the plate interface exhibits episodic tremor and slip .

You push on a box with net force of 5 N and it accelerates. If you exert  same net force on an object that has half the mass, then :The object will accelerate twice as much.

Newton's second law of motion states that : acceleration of object is directly proportional to net force acting on it and inversely proportional to  mass. Therefore, if net force acting on object is constant, and mass is reduced by factor of 2, then its acceleration will be twice as much.

In this case, if you exert net force of 5 N on object with mass M, and it accelerates with acceleration A, then :

F = M*A; F is the net force applied.

If you exert same net force of 5 N on an object that has half the mass of the previous object, i.e., its mass is M/2, then its acceleration would be:

A' = F/(M/2) = 2F/M = 2A;  A' is the new acceleration of the object.

Object will accelerate twice as much if you exert the same net force on an object that has half the mass.

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The required buoyant force of the solid steel submerged in water is 124681934 N.

Force is defined as an object which is in a state of motion then its rate of change of momentum is called force.

Here,
To calculate the buoyant force on the steel object, we need to first determine the volume of the steel object. Let's assume the density of steel is 7,860 kg/m³.

Mass of the steel object = 1.0x10⁷ kg

Density of steel = 7,860 kg/m³

The volume of steel object = Mass of steel object / Density of steel

= (1.0x10⁷ kg) / (7,860 kg/m³)

= 1271.78 m³

Buoyant force = Weight of displaced water

= Density of water x Volume of displaced water x gravitational acceleration

= (1000 kg/m³) x (1271.78 m³) x (9.81 m/s²)

= 124681934 N

The weight of the steel object is given as 1.0x10⁷ N.

Comparing the buoyant force with the weight of the steel object, we find that the buoyant force is greater than the weight of the steel object. This means that the steel object will float in water, as the buoyant force is enough to counteract the weight of the object.

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Answer:

\(23^{\circ}\)

Explanation:

n = Refractive index of air = 1

\(n_1\) = Refractive index of contact lens = 1.6

\(n_2\) = Refractive index of cornea = 1.4

\(n_3\) = Refractive index of fluid = 1.3

From Snell's law

\(n\sin30^{\circ}=n_1\sin\theta\\\Rightarrow \theta=\sin^{-1}\dfrac{1\sin30^{\circ}}{1.6}\\\Rightarrow \theta=18.21^{\circ}\)

\(n_1\sin\theta=n_2\sin\theta_1\\\Rightarrow \theta_{1}=\sin^{-1}\dfrac{1.6\times \sin18.21^{\circ}}{1.4}\\\Rightarrow \theta_1=20.92^{\circ}\)

\(n_2\sin\theta_1=n_3\sin\theta_3\\\Rightarrow \theta_3=\sin^{-1}\dfrac{1.4\sin20.92^{\circ}}{1.3}\\\Rightarrow \theta_3=22.62^{\circ}\approx 23^{\circ}\)

The angle is the light traveling in the fluid behind her cornea is \(23^{\circ}\).

The angle is the light traveling in the fluid will be 23⁰. Light is traveling in a particular direction with an angle.

"The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given color and for a given set of media,

The given data in the problem is;

n is the refractive index of air = 1

n₁ is the refractive index of contact lens = 1.6

n₂ is the refractive index of cornea = 1.4

n₃ is the refractive index of fluid = 1.3

According to Snell's law. The formula for Snell's law is

\(\rm n sin30^0 = n_1 sin\theta \\\\ \theta = sin^{- 1}(\frac{1sin30^0}{1.6} )\\\\ \theta = 18.21 ^0\)

For contact lenses;

\(\rm n_1sin\theta = n_2 sin\theta_1 \\\\ \theta_1 = sin^{-1}\frac{1.6 \times sin 18.21^0}{1.4} \\\\ \theta_1 =20.92 ^0\)

For fluid;

\(n_2 sin\theta_1 = n_2 sin \theta_3\\\\ \theta_3 = sin^{-1}\frac{1.4 sin 20.92^0}{1.3} \\\\ \theta_3 = 22.62 ^ 0 =23^0\)

Hence the angle is the light traveling in the fluid will be 23⁰.

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Answer:

0.043 m upwards

Explanation:

The mass of the bullet, \($m_1$\) = 0.013 kg

Mass of the ballistic pendulum, \($m_2$\) = 3 kg

Velocity of the bullet, \($v_1$\) = 320 m/s

Therefore, from the law of conservation of momentum, we get

\($m_1v_1+m_2v_2=m_1v_1^1+m_2v_2^1$\)

\($(0.013 \times 320)+(3 \times 0) = \left(0.013 \times \frac{320}{0}\right) + (3 \times v_2^1)$\)

\($3 \times v_2^1=2.774$\)

\($v_2^1=0.92 \ m/s$\)

Therefore the required height to rise the block is given by :

\($(v_2^1)^2-v_2^2=2gh$\)

\($h=\frac{(v_2^1)^2-v_2^2}{2g}$\)

\($h=\frac{(0.92)^2-0}{2(-9.81)}$\)

\($h=-0.043 \ m$\)

Therefore, the block moves upwards for 0.043 meters.      

(a) The work done by the donkey on the cart is 59,721.9 J.

(b) The work done by the force of gravity on the cart is -48,434.87 J.

(c) The work done on the cart by friction during this time is 11,315.12 J.

(a) The work done by the donkey on the cart is calculated as follows;

Wd = Fd cosθ

where;

Wd = 375 N x 163 m x cos(12.3)

Wd = 59,721.9 J

(b) The work done by the force of gravity on the cart is calculated as;

Wg =  Fg x d x cosθ

Where;

θ = 90⁰ + 4.03⁰ = 94.03⁰

Wg = (431 kg x 9.81 m/s²) x 163 m x cos (94.03)

Wg = -48,434.87 J

(c) The work done on the cart by friction during this time is calculated as;

Wf = Ff x d x cosθ

where;

Ff = μmg cosθ

Ff = 0.0165 x 431 kg x 9.81 x cos (4.03)

Ff = 69.59 N

Wf = 69.59 x 163 x cos (4.03)

Wf = 11,315.12 J

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Answer:

See below

Explanation:

Average speed =  (0+ 10)/2 = 5 m/s

 then to cover 50 m     will take    50 m / 5 m/s  = 10 seconds

     change in velocity/ change in time = acceleration = 10/10 = 1 m/s^2

The sports fill-in-the-blanks activity requires participants to identify the sport associated with different objects and include the definite article while following the given model.

Objective of activity is to test participants' knowledge of sports and related equipment while improving their proficiency in Spanish language. The activity helps participants to practice their grammar, vocabulary, and sentence structure skills while also promoting memory and comprehension skills. Here are a few sample questions for  sports fill-in-the-blank activity:

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Matching the government activities to the different fiscal policies.

Contractionary Fiscal Policy:

budget indicates a surplus

government is spending less than what it earns

Expansionary Fiscal Policy:

government is spending more on infrastructure development

budget indicates a deficit

government is spending more than what it earns

When the government is spending less than what it earns, it has a budget surplus. This indicates that the government is collecting more revenue than it is spending. This is an example of a contractionary fiscal policy because it reduces the amount of money circulating in the economy, which can help control inflation.

When the government is spending more than what it earns, it has a budget deficit. This indicates that the government is spending more money than it is collecting in revenue. This is an example of an expansionary fiscal policy because it injects more money into the economy, which can stimulate economic growth.

When the government is spending more on infrastructure development, it is an example of an expansionary fiscal policy because it increases government spending and stimulates economic growth.

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The maximum velocity is 48π m/s.

The equation: can be used to determine the maximum velocity of a particle in simple harmonic motion.

Vmax = ω * A

Where

The following formula can be used to get the angular frequency:

ω = 2π / T

Where

T is the motion's period.

Given that the period is π/2 seconds (T = π/2) and the amplitude is 12 m (A = 12), we can find the angular frequency:

ω = 2π / (π/2) = 4π rad/s

Now we can calculate the maximum velocity:

Vmax = ω * A = (4π rad/s) * (12 m) = 48π m/s

Therefore, the maximum velocity is 48π m/s.

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Answer:

The characteristics that determine how easily two substances change temperature are:

The volume and density of the substances and the amount of time they are in contact do not directly affect how easily they change temperature.

Explanation:

I am sure it help you with that much ☺️

Explanation:

pleasae give me some thanks please good morning sister

Answer:

Following are the responses to the given question:

Explanation:

In point a:

Nucleus denoting, he refers to those same nuclei of the helium ( that is alpha particle)

\({z}^{N^{A}}\to z-2^{N^{A-4}} + 2^{He^{4}}\)

In point b:

Let the kinetic energy of \(\alpha\) particle = \(K_1\)

\(\to K_1 = \frac{mass \times (velocity)^2}{2}\)

The velocity of \(\alpha\) particle \((v_1)= (2 \times \frac{k_1}{m_1})^\frac{1}{2}\)

Let daughter core velocity be =\(v_2\)

Preserving linear acceleration since there was no external factor we can write

\(\to m_2 \times v_2 = m_1 \times v_1\\\\\to v_2 = \frac{m_1\times v_1}{m_2}\\\\\to v_2 = \frac{m_1\times (2 \times \frac{k_1}{m_1})^{\frac{1}{2}}}{m_2}\)

Daughter nuclei energy can be written as:

\(\to \frac{mass \times (velocity)^2}{2}\\\\\to \frac{m_2 \times (m_1)^2 \times 2 \times k_1}{(2\times m_1 \times (m_2)^2)}\\\\ \to (\frac{m_1}{m_2}) \times k_1\)

In point c:

Initial weight = M

Total product weight \(= m_1 + m_2\)

You can use the total release energy (Q-factor) as =\((M - (m_1+m_2)) c^2\)

Answer:

Cellular respiration is important because it is the process by which cells produce energy in the form of ATP (adenosine triphosphate). ATP is the primary energy currency of cells, and it is used to fuel a wide variety of cellular processes, including muscle contractions, nerve impulses, and the synthesis of biomolecules.

Cellular respiration takes place in the mitochondria, which are organelles found in almost all eukaryotic cells. The mitochondria are the powerhouses of the cell, and they are responsible for generating most of the ATP that cells use for energy. During cellular respiration, the mitochondria break down glucose and other organic molecules to release energy, which is then used to synthesize ATP. Overall, cellular respiration is essential for the functioning of cells and the maintenance of life.

Numerous other bodily reactions are supported by cellular respiration, which produces usable ATP energy. For reactions that would not take place without an energy input but are energetically unfavorable, ATP is particularly crucial.

In cellular respiration, ATP is the primary molecule generated. The energy released during respiration is stored as ATP, the universal unit. Considering how important it is to cellular respiration, the mitochondrion can be referred to as the "powerhouse" of the cell.

Because it gives living things the energy they need to carry out all of the other tasks required to sustain life, cellular respiration is crucial.

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Answer:

Hey, I'm not sure I understand exactly what your assignment is but hopefully this helps . . .

put the other end against the side of the bubls base to light up the light bulb.

This will act as the bulbs conductor, lighting up bc you are making a complete electrical circuit between positive and negative terminals of the battery.

Ok hopefully this helps you out

The nucleons have less mass, because matter is converted into binding energy. Option D is correct.

During the process of combining a neutron and a proton to form a nucleus, a small amount of mass is converted into binding energy. This is due to the strong nuclear force that holds the nucleus together. The mass of the nucleus is slightly less than the sum of the masses of the individual nucleons, and the difference in mass is referred to as the mass defect.

This mass defect is related to the binding energy of the nucleus through Einstein's famous equation E=mc², where E is energy, m is mass, and c is the speed of light. The mass defect represents the amount of mass that is converted into binding energy to hold the nucleus together. Option D is correct.

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Answer:

The truck will undergo the largest change in momentum if it has a greater mass than the small car.

Explanation:

The change in momentum of an object can be calculated using the equation:

Δp = m * Δv

where Δp represents the change in momentum, m represents the mass of the object, and Δv represents the change in velocity.

Since we are comparing the change in momentum of the car and the truck, we need to consider the masses of both vehicles.

Let's assume the mass of the car is represented by m_car, and the mass of the truck is represented by m_truck.

Since both vehicles collide head-on, the change in velocity (Δv) will be the difference between their initial velocities, considering that they are moving in opposite directions:

Δv = v_truck - v_car

Now, let's compare the change in momentum for the car and the truck:

For the car:

Δp_car = m_car * Δv

For the truck:

Δp_truck = m_truck * Δv

Comparing the magnitudes of the change in momentum, we can neglect the negative sign:

|Δp_car| = |m_car * Δv|

|Δp_truck| = |m_truck * Δv|

Since both Δv and Δp are positive values, we can conclude that the vehicle with the greater mass will undergo the largest change in its momentum.

Therefore, if the mass of the truck (m_truck) is greater than the mass of the car (m_car), then the truck will undergo the largest change in its momentum. Conversely, if the mass of the car is greater, then the car will undergo the largest change in its momentum.

A)The total mechanical energy of the two blocks prior to being released from rest can be found by adding the gravitational potential energy of mA and the pulley to zero.

B).The gravitational potential energy of mB and the pulley is(3.30 kg + mp) × 9.81 m/s² × 0 m = 0 J,where mp is the mass of the pulley.The total mechanical energy of the two blocks prior to being released from rest is54.33 J + 0 J = 54.33 J

C) The rotational kinetic energy of the pulley just before mA hits the ground is(0.178 mp) J.

D) The mass of the pulley ismp = (1/2)mpr²/R² =(1/2)(0.020 kg)(0.100 m)²/(0.200 m)² = 0.001 kg = 1 g.r = (1/2)R.

The Atwood's machine shown in Figure 1 consists of two masses mA = 6.50 kg and mB = 3.30 kg. The height of mA above the floor is 0.865 m. When mA hits the floor, its velocity is 1.89 m/s. The pulley has a moment of inertia (1/2)mpr². We have to find the total mechanical energy of the two blocks before they are released, the total mechanical energy when mA hits the ground, the rotational kinetic energy of the pulley just before mA hits the ground, and the mass of the pulley. Let's solve these one by one. Part A The total mechanical energy of the two blocks prior to being released from rest can be found by adding the gravitational potential energy of mA and the pulley to zero.

The equation for gravitational potential energy is mgh. The gravitational potential energy of mA and mB is mAg(h-hB)where h is the height of mA above the floor and hB is the height of mB above the floor. Since the pulley is at the same height as mB, its gravitational potential energy ismBg(h-hB).The gravitational potential energy of mA is6.50 kg × 9.81 m/s² × 0.865 m = 54.33 J.The gravitational potential energy of mB and the pulley is(3.30 kg + mp) × 9.81 m/s² × 0 m = 0 J,where mp is the mass of the pulley.The total mechanical energy of the two blocks prior to being released from rest is54.33 J + 0 J = 54.33 J.Part BThe total mechanical energy of the two blocks when mA hits the ground can be found by adding the kinetic energy of mA, the kinetic energy of mB, and the rotational kinetic energy of the pulley to the gravitational potential energy of mB and the pulley. The equation for kinetic energy is (1/2)mv². The kinetic energy of mA is(1/2) × 6.50 kg × (1.89 m/s)² = 11.54 J.The kinetic energy of mB is(1/2) × 3.30 kg × 0 m/s² = 0 J, since it is at rest.The gravitational potential energy of mB and the pulley is(3.30 kg + mp) × 9.81 m/s² × 0 m = 0 J.The rotational kinetic energy of the pulley is(1/2) × (1/2)mp × R² × ω²,where R is the radius of the pulley and ω is its angular velocity just before mA hits the ground. We can use the fact that the linear speed of the rope is the same on both sides of the pulley to find ω. The equation for linear speed is v = Rω. When mA hits the ground, its speed is 1.89 m/s. The speed of mB is zero. Since the rope is inextensible, the speed of the rope is also 1.89 m/s.

Therefore, the speed of the pulley is also 1.89 m/s. We can find the angular velocity of the pulley by dividing the linear velocity by the radius.ω = v/R = 1.89 m/s ÷ (0.200 m/2) = 18.9 rad/s.The rotational kinetic energy of the pulley is(1/2) × (1/2)mp × R² × ω² =(1/4)mpR²ω² =(1/4)mp(0.200 m)²(18.9 rad/s)² =(0.178 mp) J.The total mechanical energy of the two blocks when mA hits the ground is11.54 J + 0 J + 0 J + (0.178 mp) J = 11.72 J + (0.178 mp) J.Part CThe rotational kinetic energy of the pulley just before mA hits the ground is(0.178 mp) J.Part DWe can find the mass of the pulley by using the moment of inertia of a disk and the mass of the pulley. The moment of inertia of a disk is (1/2)mr². Therefore,(1/2)mpR² = (1/2)mpr²,where R is the radius of the pulley and r is the radius of gyration of the pulley. The radius of gyration of a disk is (1/2)R.

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Answer:

1. 10 m

2. 450 m/s

3. Destructive Interference 

4. Antinodes

Explanation:

Interference of waves quick check

When a taut wire has a wave with a wavelength of 4.5 meters and a frequency of 100 hertz, its speed will be 450 m/s.

A wave interference where the wave amplitudes combine to yield a lesser amplitude than either of the waves is know as a Destructive Interference.

The position of a standing wave where constructive interference is at maximum is called Antinodes.

Speed is a rate of change of distance with respect to time. i.e. v=dx÷dt. Speed can also be defined as distance over time i.e. speed= distance ÷ time it is denoted by v and its SI unit is m/s. it is a scalar quantity. Speed shows how much distance can be traveled in unit time. To find dimension for speed is, from formula Speed = Distance ÷ Time

Dimension for distance is [L¹] ,

Dimension for Time is [T¹],

Dividing dimension of distance by dimension of time gives,

[L¹] ÷ [T¹] = [L¹T⁻¹]

Dimension for speed is [L¹T⁻¹].

The Speed c of the wave is given by,

c =λν where λ is wavelength and ν is frequency of the wave.

Given,

λ = 4.5 m

ν =  100 Hz

Speed of the wave is c = 4.5×100 = 450 m/s.

Hence option A is correct.

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Answer:

80 hours :)))))))))))))

The break shot speed of the player is determined as 96.5 ft/s.

use the following kinematic equation to determine the time of motion of the player.

h = vt + ¹/₂gt²

h = 0 + ¹/₂gt²

h = ¹/₂gt²

t = √(2h/g)

t = √(2 x 2.75/32.17)

t = 0.171 s

vx = x/t

vx = 16.5 ft / 0.171 s

vx = 96.5 ft/s

Thus, the break shot speed of the player is determined as 96.5 ft/s.

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An electric switch is a device that interrupts the electron flow in a circuit. Switches are primarily binary devices: either fully on or off and light switches have a simple design. When the switch is turned off, the circuit breaks and the power flow is interrupted. Circuits consist of a source of power and load.

Humans can hear thunder at frequencies ranging from 20 Hz to 120 Hz.

option C.

The frequency of a sound wave is given by the equation:

f =  v / λ

where;

For the lower frequency of thunder, λ =  16.5 m,

f = 330 m/s / 16.5 m

f = 20 Hz

For the higher frequency of thunder, λ =  2.75 m,

f = 330 m/s / 2.75 m

f = 120 Hz

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Answer:

Height = 122.5 m

Speed = 49 m/s²

Explanation:

Thanks for the question.

We will use second equation of motion.

We know, u = 0 (body falls from rest)

t = 5 (given)

a = 9.8 m/s² (acceleration due to gravity)

s = ut + 0.5 at²

s = 0.5 x 9.8 x 25 =  122.5

So, the height of the building is 122.5 m.

Now, v = u + at

v = 0 + 9.8 x 5 = 49 m/s²

Cheers

(a) The stopping force is 10,000 N.

(b) The acceleration of the bullet while slowing in the log is 500,000 m/s².

(c) The time taken for the bullet to stop is 0.0004 s.

The stopping force is determined from the change in kinetic energy of the bullet.

W = -ΔK.E

W = ¹/₂ m (u² - v²)

where;

W = ¹/₂ m (u² - 0)

W = ¹/₂ mu²

W = ¹/₂ (0.02)(200)²

W = 400 J

W = Fd

where;

F = W / d

F = ( 400 J ) / ( 0.04 m )

F = 10,000 N

The acceleration of the bullet is calculated as follows;

F = ma

a = F / m

a = ( 10,000 N ) / ( 0.02 kg )

a = 500,000 m/s²

The time taken for the bullet to stop is calculated as follows;

v = u - at

when the bullet stops, final velocity, v = 0

0 = u - at

at = u

t = u / a

t = ( 200 ) / ( 500,000)

t = 0.0004 s

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The correct answer is Self-critical.

Why is self-improvement?

Self-critical:

Self-critical causes them to always strive for self-improvement and never to see accomplishing a goal as good enough.

The characteristic of a turbulent person causes them to always strive for self-improvement and to never see accomplishing a goal as good enough is Self-critical.

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Hi there!

We can use Ohm's law to solve for the resistance of the lamp.

\(V = IR\)

V = Voltage (V)
I = Current (A)
R = Resistance (Ω)

We can rearrange to solve for resistance.

\(R = \frac{V}{I}\\\)

Plug in the given values:

\(R = \frac{120}{0.5} = \boxed{240 \Omega}\)