What is the displacement for a trip from the math classroom in Figure 2.4 to the music classroom and then to the library? What is the distance for this trip?

Answer:

A

Explanation:

since it did not absorb the heat then it is an insulator

perfect elastic collusion is a collision that conserves kinetic energy.

in physics, an elastic collision is an encounter between two bodies where the total kinetic energy of the two bodies remains the same. In an ideal, perfectly elastic collision, no kinetic energy is converted into other forms such as heat, noise, or potential energy

The main reason why there is no loss of energy is because of the lack of collusion. it can be either one-dimensional or two dimensional

The linear momentum of the system as a whole does not change, but the individual momentums of the components involved change, being equal and opposite in magnitude, canceling each other out, and conserving the initial energy

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Answer: A 0.065 METER   0.1025 METER   0.215 METER

B 0.001432 meter^3

C 1955.307 kg/m^3

Explanation:

A control volume's time rate of entropy change is equal to the rate of entropy generated inside the control volume plus the rate of entropy entering or leaving the control volume through mass transfer.

A state of disorder, randomness, or uncertainty is most frequently associated with the scientific concept of entropy, which is also a quantifiable physical property. In other words, entropy is the increase in disorganization within a system. It is defined as the measurement of degree of randomness. A physical principle based on observed interactions between heat and energy, the second law of thermodynamics is applicable to all situations. A straightforward explanation of the law is that, without an energy source to change the direction of heat flow, heat always travels from hotter to cooler objects. The overall entropy of a system never decreases; according to the second law of thermodynamics, it always either rises or stays the same.

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24 m/s will be the velocity at this point .

What is velocity?

Velocity is the directional velocity of a moving object, observed from a given frame of reference and indicating the rate of change of position measured at a given time reference (eg 60 km/h northward). Velocity is a fundamental concept in kinematics, a branch of classical mechanics that describes the motion of bodies.

Velocity is a physical vector quantity. The scalar absolute value (magnitude) of velocity is called velocity, and its magnitude is a consistent derived unit measured in the SI (metric) system as meters per second (m/s or m⋅s−1).  For example, "5 meters/second" is a scalar, but "5 meters/second east" is a vector. An object is said to be accelerating if its velocity, direction, or both change.

when v= u + at and v2-u2=2as , where u=0 ,t=4 , S = 48 m , manipulate the data and fine the answer.

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There is a change of  -20 J in the gas's internal energy.

Adiabatic expansion is the method of volume expansion in which no heat is exchanged inside the system from the surrounding, or the heat exchange is zero. During extension, the exchange of energy takes put as work.Since we given with  4-kg mass of gas expands adiabatically and does 20 j of work.

According to the first law of thermodynamics

ΔQ = ΔU + W

where Q is the heat supply or received, U is the internal energy and W is the work done

since in case  adiabatic  process , ΔQ = 0

so,  ΔU = -ΔW

wince a work done is done by the system, so the work done =  +20 J

ΔU =  -(+20) = -20 J

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At point A the spinning wheel will experience least centripetal force.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Centripetal force is applied on object depends on the centre and object distance. So B will experience maximum force while A is least.

At point A the spinning wheel will experience least centripetal force.

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The coefficient of kinetic friction ∝=9.81

Given that mass of block is 80kg .

Pulleys and ropes are massless and frictionless.

Coefficient of kinetic friction ∝ means the ratio of kinetic friction force of contacting surfaces to normal force .

Being a ratio parameter its unitless parameter.

[tex]F= mg\\\\F=\alpha N[/tex]

from these equations

[tex]mg=\alpha N[/tex]

Since there is no involvement of tension, g=∝

∝=9.81

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The initial energy becomes stored in the system by the tension in the string.

Energy is the capacity to do work. Energy cаn exists in mаny different forms. Аll forms of energy аre either kinetic or potentiаl. The energy аssociаted with motion is cаlled kinetic energy. The energy аssociаted with position is cаlled potentiаl energy. Potentiаl energy is not "stored energy". Energy cаn be stored in motion just аs well аs it cаn be stored in position.

А tension force is а force developed in а rope, string, or cаble when stretched under аn аpplied force. It is the force generаted when а loаd is аpplied аt the ends of аn object, normаlly to the cross-section of it. It cаn аlso be cаlled the pulling force, stress, or tension. This type of force is only exerted when there is contаct between а cаble аnd аn object. Tension аlso аllows force to be trаnsferred аcross relаtively lаrge distаnces.

Your question is incomplete, but most probably your full options were

a. The energy is supplied by the tension in the string.

b. The energy is part of the mass.

c. The force of Gravity does work on the mass when it is displaced some height when the pendulum is displaced by some angle theta.

d. I did work on the mass by dispacing it some height when I displaced the pendulum by some angle theta.

Thus, the correct option is A.

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The largest number is 1111. Option A.

The initial state in a state or activity diagram. Represents the state of an object before the events contained in the diagram act on it. Transitions from initial states are usually unlabeled and represent transitions to enclosing states. A final state marks the end of the execution flow of a state machine or region.

Can have multiple incoming transitions but no outgoing transitions. Each region can have at most one final state. For orthogonal regions, execution flow stops when all region end conditions are reached. In quantum state terms, colliding particles form an initial state. In a collision, particles can be annihilated and/or exchanged resulting in a different set of particles in the final state.

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To know the exact mass of a planet, we also need to be able to determine the angle at which the planet's orbit is tilted toward us.

To determine the mass of a planet, astronomers usually measure the small motions of the star caused by the gravitational pull of the orbiting planet. For a planet, figuring out the mass of the Earth is an extraordinary challenge with current technology.

Therefore, to measure the mass of a planet, measure the period and orbital radius of all satellites orbiting the planet, plot graph against R³/T² for all satellites, and calculate the mass of the planet. This is one way to do that.

According to Kepler's laws: If the orbital size (a) is expressed in astronomical units (1 AU is the average distance between the Earth and the Sun) and the period (P) is measured in years, Kepler's third law states that his P² = a³ increase. where P is the Earth year, a is the AU, and M is the mass of the central body in units of the mass of the Sun.

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Answer:

D

Explanation:

If we ignore certain factors, then the net force is 0N, because we have two equal but opposite forces (10N-10N).

Answer:

μ = 0.55

Explanation:

Given:

m = 43 kg

a = 0.79 m/s²

F pull = 265 N

_____________

μ - ? Friction coefficient

2 Newton's law:

m·a = Fpull  - μ·m·g

μ·m·g = Fpull - m·a

Friction coefficient:

μ = (Fpull - m·a) / (m·g)

μ = (265 - 43·0.79) / (43·9.8) ≈ 0.55

Answer:   124m/s2

Explanation: I'm pretty sure this is correct, if it is not I'm sorry, and have a good day!

The inner planets are Planets C , D and E.

The outer planets are Planets A. B and F.

How many types of planets are there in our Solar System?

Astronomers frequently divide our Solar System's planets into two groups: the inner planets and the outer planets.

Inner Planets

Outer Planets

On the basis of the above comparison the planets in the question are classified as-

Planet A - Outer Planet as has 67 moon, and major part of it atmophere are hydrogen and helium.

Planet B - Outer Planet as has ring but not much atmophere.

Planet C - Inner Planet as has no moon but has high volcanic activity

Planet D - Inner Planet as has high amount of carbon dioxide in it atmophere and has two moon

Planet E - Inner Planet as  has a thin layer of atmophere but no moon due to the effect of the Sun’ gravity

Planet F - Outer Planet as it has 27 moon, and it has atmophere mostly composed of hydrogen, helium, and methane

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Note: Can you please add a screenshot? So I can help you out.

(a) If am going to measure the current and that desired current passes through I will an existing resistor to find the current using ohm's Law.

V= IR

Using the ohms Law another variable we can find is let Lenovo. To find Current any variable with two

The voltage & resistance.

So, I = V R

R is to be known.

If V= 1.5V, Then T= 1-5 100 = 0.015 Ampere

R = 100-2

But this is theoretical as the wire the load and even the supply have internal resistance. we Considering Also there are superconductors with zero resistance due to their properties in negative temperatures.

b) measure the current and the desired current doe as to not pass through the existing resistor,

Theoretically, if there is no resistance then it is a short Circu and the current will be infinite But Practically wires have resistance and simply I will find the Kurrent value by breaking the with and connecting the circuit.

We measure the current using a so-called ammeter. Some types of ammeters have a pointer on the dial but most have a digital display. Ammeters must be connected in series to measure the current flowing through the components in the circuit. There are two ways to measure current. One is based on electromagnetism and is associated with the early moving coil meter. The other is based on Ohm's Law, the main theory of electricity.

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The position of the image of the person is 0.5 cm.

An optical system's focal length is the inverse of its optical power; it indicates how strongly the system converges or diverges light. A positive focal length system converges light, while a negative focal length system diverges light.

The rays are bent more sharply in a system with a shorter focal length, bringing them closer to focus or diverging them faster. For the special case of a thin lens in air, a positive focal length is the distance over which initially collimated (parallel) rays are brought to a focus.

Given,

Focal length=75mm

Height of the person=2.7m

f=((1/f)-(1/p))⁻¹

f=fp/p-f

Thus, the height of the image is

[tex]h_{i}[/tex]=m[tex]h_{p}[/tex]

[tex]h_{i}[/tex]=(i/p)[tex]h_{p}[/tex]

[tex]h_{i}[/tex]=f[tex]h_{p}[/tex]/p-f

[tex]h_{i}[/tex]=(75mm)(1.80m)/(27m-0.075m)

[tex]h_{i}[/tex]=5mm

[tex]h_{i}[/tex]=0.5 cm

The position of the image of the person is 0.5 cm

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Answer:

Kinetic energy

Explanation:

Kinetic = movement or something

the ball moved, sounds like kinetic.

The force that must be applied down at an angle of 37.8° to the horizontal to make the box start moving is 3.99 N.

Force is obtained by multiplying the mass of a body by its acceleration.

To calculate the force that must be applied to make the box start moving, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the force that must be applied to the box is 3.99 N.

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Using Newton's method , the approximations value of x₁ and X₂ are 7.1 and 7.0 respectively.

Newton's method: Newton’s method is a procedure for approximating the solutions of an equation f(x) =0. These are also called the zeros of f. Newton’s method is an iterative procedure that finds an approximation to a rootof f(x) =0 and then uses the approximation to help find a better approximation. This gives a list of numbers x1, x2, x3, . . . which we call successive approximations. We begin by explaining the main step of method with shows us how to find xn+1 from xn.

Given an approximation xn, compute the next approximation by xₙ+1 = xₙ− f(xₙ)/f'(xₙ).•

We have given that,

f(x) = x²−2x−35, and x₀= 6

approximation relation for succive approximation

is xₙ + 1 = xₙ − (xₙ2 - 2xₙ- 35) / 2xₙ− 2

Now , we compute the values of x1 and X2 using approximation relation

put n= 0 , in above formula we get

X₁ = x₀- ( x₀²- 2x₀ - 35)/2x₀ -2

using initial condition, x₁ = 6 - ( 36-12-35)/10 = 7.1

again put, n= 1

x₂ = x₁ - ( x₁ ² - 2x₁ -35)/2x₁ -2 = 7.1 - ((7.1)² - 14.2 -35)/12.2 = 7.00

Hence, the value of first succive approximation (x₁) is 7.1 and second approximation (x₂) is 7.00

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Complete Question:

Write the formula for Newton's method and use the given initial approximation to compute the approximations x1 and x2.

f(x)=x2−2x−35, x0 =6

Write the formula for Newton's method for the given function. Choose the correct answer below.

xn+1=xn−(xn2−2xn−35 )/ 2xn−2

Use the given initial approximation to compute the approximations x1 and x2.

The force experienced by the truck driver is lesser than the force experienced by a car driver in a perfectly inelastic collision.

According to law of conservation of momentum,

m1 u1 + m2 u2 = m1 v1 + m2 v2

After perfect inelastic collision,

v1 = v2

m1 u1 + m2 u2 = ( m1 + m2 ) v

u1 = 8 m / s

u2 = - 8 m / s

m1 = 3800 kg

m2 = 830 kg

Substituting the known values,

( 3800 * 8 ) - ( 830 * 8 ) = ( 3800 + 830 ) v

30400 - 6640 = 4630 v

v = 6.43 m / s

Since final velocity is positive, the vehicles will  move the direction of truck after collision.

For the truck,

a = ( 6.43 - 8 ) / 0.15

a = - 10.48 m / s²

F = 3800 * - 10.48

F = - 39.83 KN

For the car,

a = ( 6.43 - ( - 8 ) ) / 0.15

a = 96.2 m / s²

F = 830 * 96.2

F = 79.85 KN

I Ft I < I Fc I

Therefore, the force experienced by the truck driver is lesser than the force experienced by a car driver.

The given question is incomplete. The complete question is:

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by the truck. To substantiate this view, they point out that the car is crushed, whereas the truck is only dented. This idea of unequal forces, of course, is false. Newton's third law tells us that both objects experience forces of the same magnitude. The truck suffers less damage because it is made of stronger metal. But what about the two drivers? Do they experience the same forces? Suppose that each vehicle is initially moving at 6.40 m/s and that they undergo a perfectly inelastic head-on collision. Each driver has mass 81.0 kg. Including the drivers, the total vehicle masses are 830 kg for the car and 3800 kg for the truck. The collision time is 0.150 s.

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The angle at which a ray of light leaves the other side of a window pane is the same as the angle at which it strikes the glass.

Refraction is the change in direction of a wave when it passes from one medium to another or from a gradual to a sudden change in the medium.

When a wave of light passes from one medium to another, its direction is changed. This phenomenon is called refraction. It occurs because the speed of light is different in different media.

The amount of refraction that occurs depends on the difference in the speed of light in the two media, and the angle at which the light wave is incident on the boundary between the two media. The greater the difference in the speed of light, the greater the amount of refraction. The angle of incidence also affects the amount of refraction; the greater the angle, the greater the refraction.

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Main answer-  the mass of the backpack is 1.53kgs

Supporting answer- The mass of the body is the quantity of matter contained in it .

weight of a body is defined the amount of mass or heaviness of the body

Weight = mass x acceleration due to gravity

Body of the answer- Given ,

weight of backpack = 15000g = 15kgs

mass =             weight of the body

                    acceleration due to gravity

mass of the bag =     15 kgs

                                      9.8

                       = 1.53 kgs

Final answer- hence mass of the backpack is 1.53kgs

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The best description of inelastic and elastic collisions is perfectly inelastic.

Collisions occur when one object strikes аnother. There аre two types of collisions:

Your question is incomplete, but most probably your question was

An inelastic collision is a collision in which kinetic energy is not conserved. In a partially inelastic collision, kinetic energy is lost, but the objects colliding do not stick together. From this information, you can infer what completely inelastic and elastic collisions are.

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A. The amount of heat energy the heater supply is 42000 J

B. The temperature rise of the water is 5 °C

A. How do I determine the energy supplied by the heater?

We can determine the heat energy supplied by the heater as illustrated below:

Electrical power = Electrical eneryg / time

210 = Energy / 200

Cross multiply

Energy = 210 × 200

Energy = 42000 J

Thus, the energy supplied is 42000 J

B. How do I determine the temperature rise?

The temperature rise of the water can be obtained as follow:

Q = MCΔT

42000 = 2 × 4184 × ΔT

42000 = 8368 × ΔT

Divide both sides by 8368

ΔT = 42000 / 8368

ΔT = 5 °C

Thus, the temperature rise is 5 °C

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Answer:

The ball would fall vertically for 112.45m

Explanation:

The vertical height of a horizontal throw is affected only by the speed of the throw and the acceleration due to gravity.

At this point, we may use this formula to determine the vertical height of the throw

vertical height =

The initial throwing speed has to be converted to m/s to ensure uniformity during the calculations. To do this we multiply by 1000 and divide by 3600

169.1km/hr = 46.972m/s

Maximum height =  m

The pitch would make the ball fall vertically for 112.45m by the time it reached the home plate 18.2 m away

Answer:

The ball's vertical displacement 5.7 cm

Explanation:

Given:

V₀ = 169.14 m

D = 18.3 m

g = 9,81 m/s²

____________

Δh - ?

Ball flight time:

t = D / V₀ = 18.3 / 169.14 ≈ 0.108 s

The ball's vertical displacement:

Δh = g·t² / 2

Δh = 9.81·0.108² / 2 ≈ 0,057 m    or  5.7 cm

While pulling the speed is 37.24 m/s and distance before 70.76 m

Acceleration due to gravity

a = 9.8 m/s2

a. by the equation of motion

V = U + at

=  0 + (9.8 m/s2) ×(3.8 s)

= 37.24 m/s

b. distance fallen

S = ut + (1/2)at

= 0 + (1/2)×9.8×3.82

= 70.76 m

A parachute acts like a wing on an airplane though it acts with the same force as a human when falling. The T-11's main canopy uses a unique deployment sequence to reduce shock and canopy vibration when opening. The T-11 is designed for an average descent velocity of 19 feet per second for the 95th percentile service member, compared to 24 feet per second for the T-10C.

Even if the main parachute fails he can use his backup parachute to land. There are even tactics you can use to increase your chances of surviving a free fall to Earth if your reserves also fail. So if you have two parachutes of the same size and shape but different materials and one is heavier than the other the heavier parachute will fall faster.

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True.

According to Merriam-Webster:

"principles and procedures for the systematic pursuit of knowledge involving the recognition and formulation of a problem, the collection of data through observation and experiment, and the formulation and testing of hypotheses"

Answer:

True

Explanation:

The SCIENTIFIC METHOD is the process of establishing facts through experiments and tests. The process includes getting an observation, making hypothesis, making a prediction, implementing the experiment and submitting the analysis report.

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Time will it take to reach the ground is 9.3second

What is acceleration?

The velocity of an object may change due to an increase or reduction in speed or a change in direction of motion. The fall of an apple, the moon orbiting the earth, or a car stopped at a traffic light are all examples of acceleration. We can see from these examples that acceleration occurs when the direction of a moving object changes or its speed increases or decreases.

Acceleration is a vector quantity defined as the rate at which an object's velocity varies. If an object's velocity changes, it is accelerating.

If a person is moving quickly, sports announcers will occasionally state that he or she is accelerating. However, acceleration has nothing to do with speed. A person can be travelling very quickly yet not accelerating. Acceleration is the process of modifying the rate at which an object moves. If an object's velocity does not change, it is not accelerating. The data on the right indicate an accelerating object travelling northward. The velocity of the object changes throughout time.

We are using second equation of motion

s= ut+1/2[tex]t^{2}[/tex]

300=-15T +1/2*(10)[tex]T^{2}[/tex]

t = 9.3 second

Time will it take to reach the ground is 9.3second

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