fixing the brakes on your bicycle, you have the bicycle turned upside down. to test the brakes, you spin the wheel to a high speed in a counter-clockwise direction from your perspective. what is the direction of the angular displacement of the wheel?

The population graph of a human population would have an exponential phase followed by a lag phase.

We know that the population has to do with the number of people that can be found in a particular geographical location. Let us note that the population of a place could tend to increase or decerease with time. If the population is increasing with time, then more individuals are added.

It is common to see that the population would undergo a growth phase and then this could be followed by a period in which there is a lag which is shown as a plateau on the graph. This is the general shape of the graph of human population growth.

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Now that we know F Is 100 N, or 100 kg*m/S, and an Equals 5 m/s2, let's go on. Consequently, m =1 20 kg. Thus, the object's mass is 20 kg.

An object's mass is a fundamental characteristic, a quantifiable representation of its inertia, and a fundamental indicator of the volume of substance inside the thing. Mass is such a basic quantity that it is challenging to define in terms of another, which is why definitions of it frequently seem circular.

Use the perfectly match, where m represents mass and v is volume, to determine an object's mass. Therefore, if the volume is 10 bcm and the density of the object equals 500 kilos per cubic meter, the equation would be 500=m/10.

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The Schrödinger wave equation relates the energy of an atom to its electrons in terms of the wave function.

The Schrödinger wave equation is a partial differential equation that governs the wave function of a quantum-mechanical system. Schrödinger's model of the atom assumed the electrons could be treated at matter waves. The Schrödinger equation is conceptually the quantum counterpart of Newton's second law in classical mechanics.

Since electrons are identical to one another, the wave function of an atom with more than one electron must satisfy special conditions. The wave function of a system of identical particles depends on the coordinates of all the particles. The wave function must remain unaltered or at most undergo a change of sign if the coordinates of two of the particles are interchanged.

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Answer:

i think its 12.6 NATO per second

The distance the barrel sinks (in cm) after this additional weight is added is  108.6 cm

An object floats when the weight pressure on the object is balanced by the upward push of the water at the object. The upwards push of the water will increase with the extent of the item this is below water; it isn't tormented by the intensity of the water or the quantity of water.

Calculation:-

m = 30 kg

Fb ----- Bouyance force = ρgVd

Vd = volume  inside water

Fb = mg

 ρ v ₓ g = mg

1000 ×π/4 (0.9)²X₁ = m ---------------(1)

V = π/4(0.9)²X₁

After the person has stepped

Fb = ( 70 × 9.8 + 30 × 9.8)

1000 × π//4 (0.9)² × X₂ = 100 ------ (2)

(2) -(1)

 1000 × π/4*(0.9)² × (X₂ - X₁) = 1-- - 30

  (X₂ - X₁) = 1.086 m

Therefore the distance the barrel shrinks = 108.6 cm

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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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Answer:

V = √ ( 6.65² + 9.87² ) ≈ √ 141.64 = 11.90 mph

The vertical height the basketball player will attain in the given time is 2.2 m

From the question given above, the following data were obtained:

The vertical height attained by the player, can be obtained as illustrated below:

h = ½gt²

h = ½ × 9.8 × 0.671²

h = ½ × 9.8 × 0.450241

h = 2.2 m

Thus, from the calculation made above, we can conclude that the vertical height of the player is 2.2 m

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The acceleration is -0.48m/s².

Acceleration is the rate of change in both speed and direction of velocity over time. Anything is said to have been accelerated when it goes faster or slower in a straight line.

Suppose that θ=35°

First, you need to set up equations for both blocks.

Let m₁ be 10kg and m₂ be 5kg and for our computations suppose right is positive and up is positive

For m₁ the solution is:

Sigma Fx = ma

T - m₁gsin35 = m₁a

where T = tension

For m₂

m₂g - T = m₂a

Add the two equations together

m₁a + m₂a = T-m₁gsin35 + m₂g - T

a(m₁ + m₂) = m₂g - m₁gsin35

a= (5×9.8 - 10×9.8×sin35)/(10 + 5)

a= -0.48m/s².

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Power tools must be used since all interior walls are reinforced is a consideration when forcing interior walls.

The correct option is  C.

The load of the floor or roof construction above them is supported by load-bearing walls, also referred to as "bearing walls." They are made to transfer weight from the roof to the foundation by passing through the flooring. A bearing wall, also known as a load-bearing barrier or a structural wall, supports the entire weight of the home. This wall assists in distributing the weight of the building from the roof to the base, and its loss could lead to the building collapsing.

Tom proposes going up to the attic or basement to check which direction the joists run to see if a wall is load-bearing. The wall is still most likely not load-bearing if it runs parallel to the joists.

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The complete question is -

What is a consideration when forcing interior walls?

A-The wall coverings often hide interior metal framing.

B-The walls may be load-bearing and affect structural integrity.

C-Power tools must be used since all interior walls are reinforced.

D-Forcing the wall will require firefighters to work in a team of two.

The magnitude of the RMS voltage output of the generator is 139.39 V.

The output voltage of a rotating circular coil is given by,

E = NBAW

Where,

E is the output voltage,

N is the number of the turns in the coil which is 450 in this case,

B is the magnitude of the magnetic field which is 0.32 tesla in this case,

A is the area of the circular ring,

W is the angular velocity of the coil which is 110 revolution/second.

A = πr²

A = π(0.053)²

A = 0.0088 m².

Putting values,

E = 450(0.32)(0.0088)(110)

E = 139.39 V.

So, the magnitude of the output voltage is 139.39 V.

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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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The designer of a car simulator needs to study physics because their simulator must obey all the laws of physics. For instance, we can investigate if a car will flip if it drives on a circular track with a specific radius. Physics is also important in determining the cause of many vehicle accidents. As a result, physics is essential in the study of automotive motion.

Driving simulators, like flight simulators, immerse the driver in an artificial environment that is thought to be a legitimate alternative for one or more components of the actual driving experience. Driving simulators, on the other hand, support much more than driver instruction, in contrast to flight simulators, which were designed primarily for pilot training.

A driving simulator can alleviate these fears by illustrating what occurs when a motorist exceeds the speed limit and how this affects their response time. There is no way to educate kids this similar circumstances on the road without endangering everyone.

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The radius of curvature of the bend 53.33 m N

centripetal acceleration of 40.0 m/s2 and  speed of 30 m/s

[tex]f = \frac{mv^{2} }{R}[/tex]

so

40.0 m/s2 / 30 m/s

[tex]\frac{40^{2}m }{30}[/tex]  = 53.33  m N

The radius of curvature of the bend 53.33  m N

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The T.A.R.D.I.S. travels 5026.6 m while slowing down.

Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second

Initial speed of the Doctor; u = 406.36 m/s .

Final speed of the Doctor; v = 1035.99 m/s.

Time taken =  6.97 s.

So, average speed = ( initial speed + final speed)/2

= (406.36 + 1035.99)/2 m/s.

= 721.175 m/s.

Hence,  the T.A.R.D.I.S. travels while slowing down = average  speed × time

= 721.175 m/s × 6.97 s.

= 5026.6 m.

Hence,  the T.A.R.D.I.S. travels 5026.6 m while slowing down.

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The specific schedule of reinforcement maintains scanning the skies in search of falling stars is VI (Variable-interval schedule).

Before reinforcement is given, a ratio plan demands the completion of a certain number of responses, whereas an interval schedule calls for the occurrence of at least one right response after a predetermined amount of time.

Opportunistic conditioning uses a schedule of reinforcement as a strategy. By setting up a gap between reinforcers and replies, the goal is to determine how and when a desired behavior occurs.

This is an illustration of a schedule with variable intervals, where the reinforcement is based on the passage of time but the intervals change in a random manner.

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Simple harmonic motion is performed by an object attached to an ideal spring. You could double the force constant to double the total energy.

Simple harmonic motion is a type of periodic motion in mechanics and physics in which the restoring force on the moving object is directly proportional to the magnitude of the displacement and act in the direction of the object's equilibrium position.

The unit mass to the spring executes a simple harmonic motion in this exercise, and the maximum mechanical energy is

Em = ½ k A²

Where A represents the range of motion

We must increase the amplitude or the spring constant to double the energy.

To double the total energy, we must either increase the amplitude by a factor of 2 or increase the spring constant by a factor of 2.

The correct answer is to multiply the force constant by two.

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The total upward, vertical force on the liquid due to its surface tension as the ring is pulled upward is 2π (r inner + router ) × r cos θ.

Surface tension is the tendency of liquid surfaces at relaxation to shrink into the minimal surface area viable. floor anxiety is what permits gadgets with a better density than water consisting of razor blades and bugs to go with the flow on a water surface without turning even partly submerged.

Surface tension arises because of cohesive interactions between the molecules within the liquid. At the bulk of the liquid, the molecules have neighboring molecules on each facet. Molecules are pulling each other equally in all directions inflicting an internet force of zero.

Calculation:-

Upward force = length of contact × r cos θ

                       = 2π (r inner + router ) × r cos θ

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Yes, there a possibility that the momentum of one object is not conserved.

Newton's third law suggests that momentum is always conserved in collisions between two isolated objects. In collisions, it is believed that the interaction between the colliding items lasts for a brief period of time, making the impulse caused by outside forces insignificant.

For the momentum to be conserved, a system must satisfy two conditions:

Throughout the interaction, the system's mass must remain constant.

The system must be subject to zero net external force.

Momentum does not always change and is not conserved because the collision is automatically conserved when the kinetic energy is. The amount of momentum needed when there is a change in speed during a collision remains constant.

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The correct order of the planets in the solar system, starting closest to the sun will be the order Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune followed by the possible Planet Nine.

The sun, our star, and everything gravitationally connected to it, including the moons, planets, and dwarf planets like Pluto, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, make up our solar system. The only known example of a habitable planet, the only star we can see up close, and the only planets we can explore with spacecraft are all found in the Solar System.

Understanding the formation and evolution of planets, as well as the conditions required for life, is dependent on studying the solar system. In a cloud of gas and dust known as the solar nebula, the Sun and the planets jointly created it 4.6 billion years ago.

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False, In contrast to diffuse reflection, specular reflection violates the laws of reflection. Normal reflections are parallel to the surface of a flat mirror. The law of reflection only applies to flat surfaces. Convex mirrors serve as passenger door mirrors in cars.

The law of reflection states that the angle of incidence & angle of reflection is identical. A smooth finish causes a specular reflection of light. Since incident rays are parallel, reflected rays must also be parallel. Light striking a rough surface causes diffuse reflection.

The two principles governing specular reflection are,

1. At the point of incidence, the incidence angle, the reflected ray, as well as the normal towards the reflecting interface all lie in the very same plane.

2. The angle of incidence and reflection are equal.

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An example of  supplementary light source that you might bring to a photo shoot as a photographer is a : separate flashlight.

The flash is very important in photography because it acts as a second light source. It fills in areas where the image is underexposed due to the metering mode of camera prioritizing a different part of the frame, such as the sun in the photo below.

Professional photographers use a flash light frequently, although not the pop up flash on the camera. Photographers generally use an off camera strobe. Common reason to use flash unit is low-light indoor environments.

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Vehicle tail lights must be visible from 500 feet to the rear in normal sunlight.

On most of the vehicles, the tail lights are red and the brake lights are more luminous red. Tail lights also include the backup lights which are white in color. The idea of "red signifies stop" has always been connected to danger. Red can be an indication of dangerous plants and insects in the natural world.

The wavelength of red light is the highest (620-750 nm) so it can travel the largest distance and can be visible from a distance of 500 Feet.

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The answer is  2.416 m/s^2.

Solution:

friction force on the upper block = umg

= 0.13*2*9.81

= 2.5506 N

so writing the equation of motion for the upper block

T - f = ma

or T-2.5506 = 2a

writing the equation of motion for the lower block

mg-T=ma

or 9.8-T=a

Hence, we get a  = 2.416 m/s^2.

Since the top block slides to the right, the frictional force acting on it acts to the left. His reaction wall acts on the forward-acting lower block. The frictional force absorbs x mechanical energy from the upper block, but transfers only y mechanical energy to the lower block. To find the acceleration of the body in terms of angle and coefficient of friction.

A material modulus value of 1 means that the friction force is equal to the normal force. This means that the force required to move an object is equal to its weight. An object may have a friction value greater than 1. There are two types of friction coefficients: static friction coefficient and dynamic friction coefficient. The former is sometimes called the initial friction coefficient and the latter is sometimes called the dynamic or sliding friction coefficient.

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Both depths will take the same amount of force to hold the apple underwater.

Both depths will take the same amount of force to hold the apple underwater. Although the pressure on the top of the apple will also increase as the depth does, the pressure on the bottom of the apple will be greater. No of the depth, the net difference will remain the same. The force will therefore remain constant.

Science has a precise definition for the word "force." A force of this magnitude can be described as either a push or a pull. A force is not something that an object "has in it" or "contains." A force from another object can affect something else. The idea of a force does not distinguish between living and non-living things.

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The total kinetic energy of the system of the two objects can be achieved by adding of the kinetic energies of first and second body.

Kinetic energy is directly proportional to the mass of the thing and to the square of its velocity: K.E. = 1/2 m v². If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared. So the formula for kinetic energy is that it's equal to 1/2 times the mass of the object, times the immensity of its velocity squared, or another way to think about it, its speed squared. In an elastic collision, both the impulse and the kinetic energy of the system are maintained. On the other hand, in an inelastic collision, momentum is sustained but kinetic energy can not be sustained.

So we can conclude that two objects of equal mass moving with equal speeds in opposite directions have a total momentum of zero, but their total kinetic energy is not zero.

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The ball will take 45 seconds to reach the ground.

U=0(since ball is dropping)

So, we have to find t=?

Given

a=-9.8m/s

S=45m

As we know,

S=ut+1/2at^2

so,

t^2=45×90/2

hence

t=45s.

so the time taken is 45 seconds.

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Ganymede is one of the biggest satellites in the solar system.

All four satellites have the core but the Callisto has the smallest core.

Ganymede is the only moon known to have its own magnetic field, discovered in 1996 by NASA's Galileo spacecraft. Magnetic fields cause auroras, bands of hot, electrically charged, glowing gas in the regions orbiting the Moon's north and south poles.

Callisto is his second-largest moon on Jupiter and his third-largest moon in the solar system. Its surface is the most cratered body in the solar system. An image of Callisto taken from a passing spacecraft shows bright white patches contrasting with dark areas

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6.1m/s is correct answer.

What is frictional force?

Frictional force is defined as the force that opposes motion when one body's surface comes into contact with the surface of another. Friction force reduces a machine's mechanical advantage, or the ratio of output to input. An automobile uses about one-quarter of its energy to restrict friction force, but friction in the tyres keeps the car on the road, and friction in the clutch allows us to drive.

Friction is one of the most prevalent phenomena in the physical universe, affecting everything from matchsticks to machines to the molecular structures of every simple and complex object.

Frictional force is the opposing force formed when two surfaces attempt to move in the same direction or in opposite directions. A frictional force's primary function is to generate resistance to the mobility of one surface over another. The frictional force is determined by the texture of the body's surface.

According to conservation of momentum

m1u1= (m1+m2)v

m1=1362

m2=367

u1=7.8

v=?

m1u1= (m1+m2)v

1362x7.8 = 1727v

v = 6.1 m/s

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If you launch a cannon at 15 degrees above horizontal, and another cannon at 75 degrees above horizontal, both will have same horizontal range

In a projectile motion , horizontal range can be calculated using formula

Range = [tex]u^{2}[/tex] sin ( 2 theta) / g

where

u = initial velocity

theta = angle along the horizontal

g = acceleration due to gravity

if we substitute the value of 15 and 75 in formula , we get

sin ( 2 * theta_1 ) = sin ( 2*15 ) = sin 30 = 1/2

sin ( 2* theta_2 ) = sin ( 2 * 75 ) = sin (150) = 1/2

both the values are coming out to be equal

hence , will have equal value of horizontal range

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