4. A certain microwave has a wavelength of 0.032 meters. Calculate the frequency of this microwave.

If acceleration, acceleration would be too fast in square metres. Therefore, this information equals the final minus initial divided by a, which is 15 m/s minus 5 m/s divided by 2 m/s squared. Five seconds are involved.

The three different forms of projectile motion are as follows: motion of a horizontal projectile. projectile motion that is oblique. Motion of a projectile on an incline

An item or particle that is thrown toward the surface of the Earth and moves along a curved route only under the influence of gravity is said to be experiencing projectile motion.

The movement of a falling item (projectile) after being assigned a forward beginning velocity The only forces affecting a projectile are gravity and air resistance. The ball travels along a curved route as a result of its initial forward velocity and the downward vertical pull of gravity.

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The particle's speed at t=1 is 4 + 2 = 6 m/s. The particle moves at a speed of 4+22=8 m/s when t=2. The particle's velocity is 4+2t m/s after t seconds.

We presented the kinematic functions of velocity and acceleration using the derivative in Instantaneous Velocity and Speed and Average and Instantaneous Acceleration.

The velocity function was discovered by taking the derivative of the position function, and the acceleration function was discovered by taking the derivative of the velocity function.

We can calculate the velocity function from the acceleration function and the position function from the velocity function using integral calculus.

A particle travelling in a straight line whose velocity drops from 5 m/s to 2 m/s uniformly over the course of one second experiences a constant acceleration of 3 m/s2.

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A motorbike covered a displacement of 20 kilometers West in 30 minutes. Its average velocity in km/h will be 40 km/h

Average velocity is defined as the change in position divided by the time intervals  in which that change occurs or displacement divided by time in which that displacement occurred. The SI unit of average velocity is meters per second (m/s or ms-1).

given

distance = 20 km

time = 30 minutes = 1/2 hour

average velocity = distance / time

                            = 20 / 0.5 = 40 km/h

Its average velocity in km/h will be 40 km/h

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The carbon dioxide cartridge will propel a lighter car to a higher speed because a car with small mass experience a larger change in velocity and a car with large mass experience smaller change in velocity.

In this experiment, gas cartridge provides a certain impulse. Consequently, the mass of gas in cartridge is much less than than the mass of car. We therefore treat it as a constant and write it using this equation below:

Impulse J=Δp=mΔv

Change in velocity (Δv)=Impulse/mass

From the above expressions then clearly a car with small mass experience a larger change in velocity, and a car with large mass experience smaller change in velocity, as we know:

Change in velocity=Impulse/mass

                           Δv=J/m

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Answer:

The answers are red bone marrow and blood vessels.

Explanation:

Bone marrow is made of stem cells. These stem cells make red bone marrow, which creates blood cells and platelets for your blood.

Answer:

When an apple falls from a tree tothe ground, the potential energy ofthe fall is converted into kineticenergy,which is kinetic energy. Whenan apple hits the ground, it convertskinetic energy into heat energy

Explanation:

Question:

What happens to the mechanical energy of the apple as it falls from the tree?

Answer:

When the apple falls from the tree, it has some gravitational potential energy due to its height. When it fails, the Gravitation Potential energy will begin converting into Kinetic Energy.

The final angular speed will be 194 rpm.

From the statement:

force = 5 N

mass of the stone = 30 kg

diameter of the stone = 30 cm = 0.30 m

the radius of the stone will be = 0.15 m

initial angular velocity = 200rpm

coefficient of kinetic friction = 0.3

time for which knife kept on stone = 10 s

moment of inertia (I) = 0.5mr² (considering the stone as a solid ring )

                                  = 0.5 (30 × (0.15)²)

                                   = 15 × 0.0225

                                    = 0.3375 kgm²

Now ,we know that

torque = I α

Also torque = F x r       (r = perpendicular distance )

here force will be μF = 0.3F

therefore ,

Iα = μF × r

0.5 (30 × (0.15)²) × α = 0.3 × 5 × 0.15

∴ α = 0.6

the value of acceleration will be negative as the wheel is slowing down

∴ α =  - 0.6

       Now , using the 1st equation of motion

ω' = ω +αt

ω' = 200 -0.6 (10)

ω' = 194 rpm.

Hence the angular speed of the stone will be 194 rpm.

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Adding bulbs into a series will make them dimmer because the current is decreased, adding bulbs to a parallel will not affect the brightness because the current through each individual bulb remains the same.

Therefore, Option (C) is correct.

A series circuit is one where the same current flows through all the components in the circuit. The current has only one path in series circuits. A parallel circuit is one where the electric current has multiple paths to flow through. The components of the parallel circuits will have the same voltage across all ends.

When we connect bulbs in the circuit where all are connected in series then the net resistance of the circuit will increase and the voltage across each bulb will decrease.

Since voltage decreases across each bulb then the current across each bulb will decrease and the bulb gets dimmer because the current is reduced.

When we connect bulbs in parallel the voltage and current across each bulb will remain the same and then adding bulbs to a parallel will not affect the brightness.

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If it takes 30 seconds for the Batman to catch the joker while gliding towards him at 75 m/s, batman is 2,250 meters away from the joker. In kilometers, the distance is 2.25 kilometers.

Distance is calculated by the product of the speed and time.

The speed of the batman is 75 m/s and the time taken by the batman to catch the joker is 30 seconds.

Hence the distance between joker and batman is calculated as:

Distance = 75 m/s × 30 s = 2250 meters

According to unit conversion from meters to kilometers, 1 kilometers has 1000 meters. Hence the distance in kilometers is, 2.25 kilometers.

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It necessary to collimate the light source before using the prism to disperse the light in order for the light rays entering the prism to be parallel.

Collimator is a tool for converting a point source's divergent radiation into a parallel beam. To perform specific measurements in spectroscopy, geometrical optics, and physical optics, the light must be collimated.

An optical collimator is made up of a tube with a convex lens at one end and a variable aperture at the other end that is located in the lens' focal plane. To examine the image without parallax, radiation entering the aperture exits the collimator as a parallel beam.

Hence, collimation is needed for the light rays entering the prism to be parallel.

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A cooperative method for combining the knowledge and skills of professionals in two or more professions

The integration of concepts and traits from several fields is made possible by interdisciplinary study. In addition, it helps kids gain critical, adaptable abilities while addressing their unique individual differences.

Interdisciplinary research integrates information, data, methodologies, methods, viewpoints, concepts, or theories from two or more fields of study.

Interdisciplinary science is the collaborative process of fusing the knowledge/expertise of trained people from two or more disciplines, utilizing multiple viewpoints, approaches, and research methods/methodologies, to produce progress beyond the capacity of one discipline.

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Answer:

1.Environmental science is a discipline in the sciences that deals with the relationship between living and non-living things and the effects they have on one another, whether positive or negative. It focuses specifically on the effects of humans on the environment. Environmental science is a highly interdisciplinary field that includes both basic and applied aspects

2.An applied science is a science that seeks to solve an immediate problem.

3.The main feature of an interdisciplinary science is its collaboration across differing disciplines. Experts from different fields use their skills to piece together complex answers from a variety of perspectives.

4.c

5.a

6.f

7.e

8.b

9d

Explanation:

PF

Of the two possible angles, the smaller angle is θ = 17.075°.

The distance between a projectile's launch point and its point of impact with the ground, assuming it is fired from the ground, is referred to as the range.

R = [u²sin (2θ)]/g

Given values;

Range of pass; R = 8.25  m

Speed; u = 12 m/s

R = [u²sin (2θ)]/g

Thus;

8.25  = 12² × (sin(2θ))/9.8

(sin(2θ)) = ( 8.25 × 9.8)/12²

(sin(2θ)) = 0.5614

2θ = sin⁻¹(0.5614)

2θ = 34.15

θ =34.15/2

θ = 17.075°

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The mass of the ball is 6.8 kg.

A metric called mass is employed in physics to express inertia, a basic property of all matter. What it essentially is is the resistance of a mass of matter to changing its direction or speed in response to the application of a force.

Mass is not the same as weight in physics, despite the fact that weight is commonly determined using a spring scale rather than a balanced scale and directly compared with known masses. An object would weigh less on the Moon than it does on Earth despite maintaining the same mass because of the lower gravity there.

We know that the formula of potential energy is,

P.E = mgh

Where m is the mass of the object g is the acceleration due to gravity and h is the height.

Given :

PE = 200 J

g =9.8 m/s^2

h = 3m

Therefore according to the question,

3 x 9.8 x m = 200

=> m = 200 / 3 x 9.8

=> m = 6.8 kg

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Answer:

Explanation:

Given:

T = 1/10 s  -  Wave oscillation period

_____________________________

f - ?

The frequency of the wave:

f = 1 / T = 1 / (1/10) = 10 Hz

Tidal forces depends on the masses and distance between the objects which are connected by gravitational force. The microtidal force generated on our body is higher from earth itself then from moon and last from the sun.

Tidal forces is an effect of gravitational pull or more scientifically the change in gravitational potential energy which creates periodic movements  in the sea and changes in water level.

Tidal force are generated on earth by the gravitational pull from sun and moon. This force is cyclical and and repeats in a regular manner. Tide force is directly proportional to mass and inversely proportional to the cube of the distance.

Tidal force ∝ mass / (distance)³

Thus, if the force is solely based on the mass we can clearly say that the tidal force from the sun is greater than that from the moon. But when considering the distance, sun is 390 times farther than moon.

Hence, when taking its cube that much lower will the tidal force from sun compare to moon. Therefore, the microtidal forces that we can affect is greater from the earth itself and then from the moon and last from the sun.

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The speed of the n-th observer relative to the first observer is n time the number of observers.

The relative velocity is described as the velocity of an item with appreciation to some other observer. it's miles the time fee of change of relative role of one object with recognize to some other item.

Absolutely the speed of an item is its velocity with appreciation to a hard and fast coordinate system, while the relative velocity of two objects is the difference among their velocities with appreciation to every other. The concept of relative movement speed in a plane is pretty much just to the entire idea of relative pace in an immediate line. considering various events, we take in more than one object moving in a body which is non-stationary in admiration to another viewer.

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Two cars, each having a mass of 1,000 kg are being tested at the Department of Highway Safety facility. Car A is moving at 30 m/s to the north. Car B is moving at 15 m/s to the south. When they collide a- Car A applies a greater force on car B than car B applies on car A.

Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle.

When both the cars will collide , one with greater momentum will applies greater force .

As momentum is calculated  as mass multiplied by velocity , since both the car have same mass then the car with a greater velocity will exert more force on the other car .

since , car A has a velocity of 30 m/s and car B is moving with a velocity of 15 m/s , then car A will have greater momentum and will exert  a greater force on car B.

correct option will be

a- Car A applies a greater force on car B than car B applies on car A.

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Kinetic Energy = 1/2 * m *(v*v)

M= 1000

V=3 m/s

KE=1/2 * 1000 * (4*4)

KE= 500*16= 8000 J.

To calculate kinetic energy Find the square of the object's velocity. Multiply this square by the mass of the object. The product is the kinetic energy of the object. The kinetic energy of a moving car is KE=1/2mv^2. Create and test a function called KE to find the kinetic energy of a moving car given a vehicle mass m and velocity v.

As every engineer knows calculating energy is easy. The unit of electrical energy is the kilowatt hour. It is determined by multiplying the amount of electricity consumed by the number of hours the electricity was consumed. Multiply this by the cost per kWh to get the total energy cost. There are five main types of kinetic energy radiant thermal, sound electrical, and mechanical energy. Radiant energy is related to ultraviolet and gamma rays that are constantly moving through space. Acoustic energy is kinetic energy in the form of vibration or noise.

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Answer:

Kinetic energy = 8 KJ

Explanation:

Given information,

→ Mass of car = 1000 kg

→ Velocity = 4 m/s

Now we have to,

→ Find the required Kinetic energy.

Let us assume that,

→ Kinetic energy = x

The formula we use,

→ KE = (1/2)mv²

Then the value of x will be,

→ x = (1/2)mv²

→ x = (1/2) × 1000 × (4)²

→ x = (1000/2) × 16

→ x = 500 × 16

→ x = 8000 J

→ [ x = 8 KJ ]

Hence, the answer is 8 KJ.

the ratio of the moment of inertia through the second axis to the moment of inertia through the first axis is 0.676

The second axis is at the centroid of the rod.

The length of the rod is L = 100 cm = 1 m

The first axis is located at 20 cm = 0.2 m from the centroid.

Let m =  the mass of the rod.

The moment of inertia about the centroid (the 2nd axis) is

Ig =  ml^3/12 = (m kg) (1 m)^2/12 = m/12 kg - m^2

The parallel axis theorem states that

I1 = m/12+0.04 m = 0.1233 m kg - m2 is the moment of inertia about the first axis.

The ratio of the moment of inertia through the centroid of the second axis to the first axis is

Ig/I1= 0.0833 m / 0.1233 m = 0.676

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If the two known sides of the force triangle are drawn to scale, we can determine the magnitude of the resultant vector by measuring the length of the vector and  by the scale factor used for the other two sides.

The size of the force triangle can be determined by measuring the length of the resultant vector and multiplying it by the scale factor used for the other two sides if the two known sides of the force triangle are drawn to scale. We can measure its angle using a compass from the same reference line to determine its direction.

The force triangle must be drawn accurately, and the length and angle of the resulting triangle must be measured precisely for the graphical approach to be accurate. Consequently, a significant mistake could be introduced.

Using the laws of sines and cosines to solve for the resultant is an alternate method. To do this, we must first identify the scale force triangle's angle b. Since the opposite corners of a parallelogram have identical angles, we may calculate the value of b using the force parallelogram given below.

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From Newton's 2nd law, we get the acceleration on the ball is 32.5 m/s².

Explain Newton's laws of motion?

The three fundamental rules of classical mechanics known as Newton's laws of motion describe how an object's motion and the forces acting on it interact. The following is a paraphrasing of these laws:

Newton's 1st law - Unless acted upon by a force, a body remains at rest or in motion in a straight line at a constant pace.

Newton's 2nd law - When a body is subject to a force, the force is equal to the time rate at which the body's momentum changes.

Newton's 3rd law - When two bodies exert force on one another, the forces are equal in size but directed in different directions.

Isaac Newton initially identified the three principles of motion in his 1687 book Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy).

From Newton's 2nd law of motion, F = ma

where, F = Force (N), m = Mass (kg), a = Acceleration (m/s²)

Given, F = 18.2 N, m = 0.56 kg

So, a = F/m = 18.2/0.56 = 32.5 m/s²

Hence, the acceleration on the ball is 32.5 m/s².

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The wavelength is: 671nm (red light).

Wavelength relates to frequency as follows:

λ=vf

in which f is the frequency, 

v is the speed of light, and

 λ is the wavelength.

Filling this in for the example:

v=3⋅108ms f=4.47⋅1014

Hz=4.47⋅1014s−1λ

=3⋅108ms4.47⋅1014s−1

=6.71⋅10−7m

from m to nm is ⋅109

So the wavelength is: 671nm (red light).

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The steps for balancing the equation is 3, 4, 2 and than 1. The balanced equation is very important for chemical reaction.

A balanced chemical equation is defined as a formula where both the reactants and the products have the same amount of atoms of each kind.

It can also be defined as an equation for a chemical reaction that accounts for the overall charge and the number of atoms for each reacting element.

Steps for balancing the chemical equation

Thus, the steps for balancing the equation is 3, 4, 2 and than 1. The balanced equation is very important for chemical reaction.  

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If two balls the same size and different masses go down a ramp, they will move at the same speed.

The phrase "rolling down a frictionless slope" is illogical. The translational and rotational motions of the balls are completely uncoupled if the slope has no friction, and the balls just slide down the slope.

I believe the situation when there is static friction, allowing the balls to roll without slipping, is what you are most interested in.

In either case, the velocity as a function of distance along the ramp (v(s)) for uniform spheres ends up being independent of both the mass and the radius. Additionally, the duration of the descent is simply the integral of ds/v(s), which is also independent of the mass and radius.

As a result, they move at the same speed regardless of position and arrive at the bottom at the same moment.

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The magnitude and direction of Ima's resultant displacement is 83.86 m and  30.8⁰ respectively.

The magnitude of Ima's resultant displacement is calculated as follows;

When she returns, her new position, a = 43 m east

Final position, b = 72 m north

Resultant displacement, d = √a² + b²

d = √(43² + 72²)

d = 83.86 m

The direction of the resultant displacement is calculated as follows;

tan θ = 43 / 72

where;

tan θ = 0.597

θ  = arc tan(0.597)

θ  = 30.8⁰

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The turntable rotates very slowly at 60 rpm, hence the coin does not slide off as the static friction force is greater than the centripetal force.

Missing data from the question:

Static coefficients of friction (μs) = 0.8

Kinetic coefficients of friction (μk) = 0.5

There are two forces works on the coin, the friction force and the centripetal force. The coin will start to slide off if the centripetal force is equal to the maximum static friction force.

Let:

Fs =  static friction force

Fc = centripetal force

Fs = μs . mg

Fc = m . v²/R = m . ω²R

Where:

m = coin's mass

g = gravitational acceleration = 10 m/s²

ω = angular velocity

Parameters given:

R = 15 cm = 15 . 10⁻² m

m = 5 gram = 5 . 10⁻³ kg

ω = 60 rpm = 60 . 2π/60 =  2π rad/s

Hence,

Fs = μs . mg = 0.8 . 5 . 10⁻³ . 10 = 4 . 10⁻² N

Fc =  m . ω²R = 5 . 10⁻³ . (2π)² . 15. 10⁻² = 2.96 .10⁻² N

Since Fs > Fc, hence the coin does not slide off.

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Distance horse run with maximum acceleration at t = 2.0 s is s1=11.4 m , t = 4.0 s is s2=45.6 m and t = 8.0s is s3 = 141.54 m.

An object that is speeding occasionally has a constant change in velocity over time. As was said in the previous sentence, the data table above depicts an object increasing its velocity by 10 m/s every second. Since there is a constant change in velocity every second, this is known as a constant acceleration. Contrary to popular belief, an object with constant acceleration is distinct from one with constant velocity. Refuse to be duped! Furthermore, a moving item at a constant speed is not accelerating. The following data tables show the motions of objects moving at a constant acceleration and at a variable acceleration. The three main categories of accelerated motions are uniform, non-uniform, and average acceleration. When an item moves in a straight path with an increase in speed occurring at regular intervals of time, this motion is referred to as having uniform acceleration.

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Answer:

yes

Explanation:

Each ball had a momentum of 3 kg m/s before the collision, and

the system of two balls had a total momentum of 0 kg m/s after the collision.

Given,

Each ball has a mass (m) of 1.0 kg.

Each ball moves at a speed (v) of 3.0 m/s.

Momentum (P) = Mass(m) x Velocity (v)

As a result of the identical mass and speed of both balls, the momentum of each ball before the collision would be:

P = mv

P = 1 * 3 kg m/s

P = 3 kg m/s

The momentum of each ball before the collision is 3 kg m/s.

When two identical balls roll in the opposite direction at the same speed with the same mass, their combined momentum would be as follows:

P = m₁v₁ - m₂v₂

P = 1 * 3 - 1 * 3

P = 3 - 3

P = 0 kg m/s

The collision is elastic, thus. The entire momentum before and after the collision is zero (0).

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