The idea that energy in atoms has distinct energy levels is part of the branch of physics that is called

Explanation:

1A. The visible light portion of the electromagnetic spectrum shows the rainbow of colors, with violet and blue having shorter wavelengths, and therefore higher energy. At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.

so its option 2

2A. Atom and molecules

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For an object to be in equilibrium, two conditions must be : net force acting on object must be zero, and net torque acting on object must also be zero then object remains at rest or moves with a constant velocity.

The first condition states that the net force acting on the object must be zero. This means that the vector sum of all the forces acting on the object, including external forces and internal forces, must add up to zero. Mathematically, this condition can be expressed as ΣF = 0, where ΣF represents the sum of all the forces.

The second condition states that the net torque acting on the object must be zero. Torque is a rotational force that causes objects to rotate. For an object to be in rotational equilibrium, the sum of all the torques acting on it must be zero. Mathematically, this condition can be expressed as Στ = 0, where Στ represents the sum of all the torques.

These two conditions ensure that the object is not experiencing any unbalanced forces or rotational forces, resulting in a state of equilibrium where the object remains at rest or moves with a constant velocity.

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Answer:

2.5m/s²

Explanation:

Given the following:

Initial velocity u = 0m/s

Final velocity v = 20m/s

Time t = 4s

Required

average acceleration over this time in time interval​

Using the equation of motion

v = u + at

10 = 0 + a(4)

10 = 4a

a = 10/4

a = 2.5m/s²

Hence its average acceleration over this time in time interval​ is 2.5m/s²

The lowest rock layer is a layer that must be rich in organic matter that was subjected to heat and pressure over time during the formation of oil and gas.

The lowest rock layer refers to the lowermost part of the Earth's mantle, which is a thin rock layer (approximately 250 km).

In the Earth, the layers of rocks are progressively deposited, thereby pressing them to the bottom to generate sedimentary rocks.

The lowest rock layers on the bottom must be rich in organic matter to form fossil fuels.

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The rms speed of one molecule of the gas is 4.4 x \(10^{2}\) m/s.

The average translational kinetic energy of an ideal gas is related to the root-mean-square (rms) speed of its molecules by the following equation:

(1/2)\(mv^{2}\) = (3/2)kT

where m is the molar mass of the gas, v is the rms speed of a gas molecule, k is the Boltzmann constant, and T is the temperature of the gas in Kelvin.

We can solve for v to obtain:

v = sqrt((3kT) / m)

where sqrt denotes square root.

Substituting the given values, we have:

v = sqrt((3 x 1.38 x \(10^{-23}\) J/K x 300 K) / (0.0402 kg/mol / 6.02 x \(10^{23}\) molecules/mol))

Simplifying, we get:

v = 4.4 x \(10^{2}\) m/s

Therefore, the rms speed of one molecule of the gas is approximately 4.4 x \(10^{2}\) m/s.

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The centripetal force (Fc) of the ball is 0.64N.

Centripetal force is the force on a rotating or orbiting body in the direction of the centre of rotation.

Centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

Centripetal force formula is given as the product of mass (in kg) and tangential velocity (in meters per second) squared, divided by the radius (in meters) as follows:

Fc = mv²/r

Where;

According to this question, a boy spins a ball on a string over his head with a rotational velocity of 6.3m/s. The length of the string is 0.50 m and the mass of the ball is 0.008 kg. The centripetal force is as follows:

Fc = 0.008 × 6.3²/0.5

Fc = 0.31752 ÷ 0.5

Fc = 0.64N

Therefore, 0.64N is the centripetal force of the ball.

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Answer:

anywhere between 100000 to about 400000 human years .

Explanation:

Answer:

gravitational constant value means it was never change in any particular area of the Earth

Answer:

Central (Inner Fringe) Vision is used to judge depth and position. Peripheral (Outer Fringe) Vision is conical in shape around the other vision fields

The vision used to judge depth and position is binocular vision.

Binocular vision refers to the ability of an organism, typically humans, to perceive depth, distance, and the relative positions of objects by using both eyes simultaneously. Each eye provides a slightly different view of the same scene due to their separation, which is called binocular disparity.

The brain processes these disparate images and merges them into a single, three-dimensional perception, allowing us to gauge distances accurately and perceive the spatial relationships between objects in our environment.

Binocular vision is a crucial aspect of our visual perception and depth perception, contributing to our ability to navigate, interact with our surroundings, and perform tasks that require judging distances and positions with precision.

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Answer:

Helped pin down the age for the universe now known to be 13.8 billion years, roughly three times the age of Earth. Discovered two moons of Pluto, Nix and Hydra. Helped determine the rate at which the universe is expanding. Discovered that nearly every major galaxy is anchored by a black hole at the centre.

Explanation:

Answer:

 v_f = 1.14 m / s

Explanation:

This is an exercise of conservation of momentum, let's define a system formed by the skater and the snowball, therefore the forces during the launch are internal and the moment is conserved.

Initial instant. Before throwing the ball

        p₀ = M v₀

Final moment. After throwing the snowball

       p_f = (M-m) v_f + m v

the moment is preserved

        p₀ = p_f

        M v₀ = (M-m) v_f + m v

        v_f = \(\frac{M v_o - m v}{M-m}\)

let's calculate

       v_f = \(\frac{57 \ 1.2 - 0.11 \ 31.5}{ 57 - 0.11}\)

       v_f = 64.936 / 56.89

       v_f = 1.14 m / s

The new fundamental frequency of the organ pipe, after being cut in half and closed off at one end, is 2fo, where fo represents the original fundamental frequency.

When an open organ pipe is cut in half and closed off at one end, the length of the pipe is reduced by half. According to the fundamental frequency equation for a closed organ pipe, the fundamental frequency is inversely proportional to the length of the pipe. Halving the length of the pipe results in doubling the fundamental frequency.
Therefore, the new fundamental frequency is twice the original frequency, which can be represented as 2fo.

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Answer:

Explanation:

Answer:

1. Ability of problem solving.

2. Physics gives u a job.

3. Physicists can become engineers.

4. Physics puts your math to use.

5. Physics is versatile.

6. Physics makes things possible.

A force of approximately 39.77 N must be applied to lift a load of 25,000 N, given the specified pitch of the screw jack and the efficiency of 40%.

The pitch of a screw jack is the distance traveled by the load for each revolution of the screw. In this case, the pitch is given as 0.1 cm, which means that for each complete turn of the screw, the load is lifted by 0.1 cm. The diameter of the wheel to which the turning effect is set up is given as 50 cm, which means that the circumference of the wheel is 50 cm x pi = 157.08 cm.

The efficiency of the jack screw is given as 40%, which means that the actual force required to lift the load is 1/0.4 = 2.5 times the ideal force. Therefore, the ideal force required to lift the load of 25,000 N is:

Ideal force = Load / Mechanical Advantage

The mechanical advantage of a screw jack is given by the formula:

Mechanical Advantage = circumference of wheel / pitch of screw

Substituting :

Mechanical Advantage = 157.08 cm / 0.1 cm = 1570.8

Ideal force = 25,000 N / 1570.8

Ideal force = 15.91 N (to two decimal places)

The actual force required to lift the load is 2.5 times the ideal force:

Actual force = 2.5 x 15.91 N

Actual force = 39.77 N (to two decimal places)

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The Coulomb's law equation is  F = Kq₁q₂/r².

This is the law that relates the product of two charges to the square of distance between the two charges.

Coulomb's law states that the force of attraction or repulsion is directly proportional to the product of the charges and inversely proportional to the square of distance between the charges.

The equation of Coulomb's law is given as;

F = Kq₁q₂/r²

where;

Thus, the Coulomb's law equation is  F = Kq₁q₂/r².

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Each of the vehicle's six wheels would have a wheel speed sensor, but there would only be four modulators in the six-in/four-out system.

Anti-lock braking systems (ABS) help you manoeuvre in an emergency by restoring traction to your tyres. What It Does: Assists in stopping wheel locking so that the driver may steer to safety. What It Isn't Able To Do The stopping distance might not be lowered, and it's okay if the pedal wobbles or pushes back.

By keeping the brakes from locking, ABS gives the driver better steering control while braking. ABS rarely activates, unless you reside in a state with lots of snow and ice. It groans and rattles when it does. Many motorists claim that they feel as though their brakes had failed.

The main drawback of ABS brakes is the additional expense that it adds to the base price of a vehicle. Additionally, maintenance expenses increase since each wheel's pricey sensors might be expensive to replace if they become out of calibration. Anti-lock brakes' primary function is to offer sure-footed braking.

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The height to which the rock can attain is 7.6 m

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

Initial velocity (u) = 12.2 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Final velocity (v) = 0 m/s (at maximum height)

The maximum height to which the rock can attain can be obtained as follow:

v² = u² – 2gh (since the rock is going against gravity)

0² = 12.2² – (2 × 9.8 × h)

0 = 148.84 – 19.6h

Collect like terms

0 – 148.84 = – 19.6h

–148.84 = –19.6h

Divide both side by –19.6

h = –148.84 / –19.6

Thus, the height to which the rock can attain is 7.6 m

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Explanation:

Formula for finding power : 1/f

Substitution of values:

1 /13.3 = 0.07518 cm

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Answer:

I guess i would say the microscope

Explanation:

Because of the microscope, we can see the cells.

The correct answer to this question is that radio waves always travel much faster than sound waves.

Sound travels at a speed of about 1,100 feet per second (766 miles per hour). Radio waves travel at the speed of light (about 186,000 miles per second).

Electromagnetic radiation travels in waves with varying frequencies. Radio waves have frequencies ranging from 10 kHz (ten thousand waves per second) to 100 GHz (which is one hundred million vibrations per second).

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Answer:

Explanation:Radio waves travel at much faster than speed of sound waves.

Radio waves usually travel at speed of light which is much greater than speed of sound.

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According to the research, the correct option is A. A psychologist whose goal is to explain a behavior will record descriptions as objectively as possible.

It is a professional who diagnoses and is responsible for collecting facts about the behaviors and experiences of living beings, organizing them in a systematic way and developing theories for their understanding.

This means that psychologists analyze the behavior of living beings from a scientific approach and these studies allow us to explain their behavior.

Therefore, we can conclude that according to the research, the correct option is A. A psychologist whose goal is to explain a behavior will record descriptions as objectively as possible.

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Answer:

The answer is the fourth option

Explanation:

For everyone on edg3, it is D) suggest why a behavior occurs.

Answer:

The electric force between them is 878.9 N

Given:

Identical charge C

Separation between two charges  m

For finding the electrical force,

According to the coulomb's law

Here, force between two balloons are repulsive because both charges are same.

Where    N  Therefore, the electric force between them is 878.

Explanation:

Answer:

violet light bends the most as it has a shorter wavelength

Explanation:

None of the above is right option for the same. A wave in which particles of the medium undergo a circular motion is known as a Surface wave.

A surface wave is a wave in which the medium's particles move in a circular pattern. Surface waves are neither transverse nor longitudinal. All of the particles in the bulk of the medium travel parallel to and perpendicular to the direction of energy transport in longitudinal and transverse waves, respectively.

Only the particles at the medium's surface move in a circular motion during a surface wave. As one moves farther away from the surface, the mobility of the particles tends to slow down.

Every wave that travels across a medium has its origin. One of the particles was initially displaced somewhere along the medium.

It is typically the first coil on a slinky wave that is moved by a person's hand. The first air particle to vibrate during the creation of a sound wave is often caused by the vocal chords or a guitar string. The particles that are displaced from their equilibrium position at the point where the wave is introduced into the medium always move in the same direction as the vibration's source.

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Answer:

c

Explanation:

Answer:

it's d

Explanation:

because if you had energy you could do anything but without energy you won't be able to so anything

hope this helps

Answer:

Explanation:

1) The time of flight equation for projectile motion can be used here to find total time in air.

t = 2vsin∅ / g

where v is speed, Ф is launch angle

t = 2×4×sin 60 / 9.8

t = 0.71 seconds

2) Distance where it hit the ground is called as range and has the following standard equation

D = v² sin2Ф/g

D = 4²sin 2×60 / 9.8

D = 1.41m

3) Maximum elevation is maximum time reached

h = v² sin²Ф / 2g

h = 4²sin² 60 / 2*9.8

h = 0.61 m

Answer: When a liquid substance is poured into a vessel, it takes the shape of the vessel, and, as long as the substance stays in the liquid state, it will remain inside the vessel. Furthermore, when a liquid is poured from one vessel to another, it retains its volume (as long as there is no vaporization or change in temperature) but not its shape.

Explanation: A solid has a definite shape and volume. A liquid has a definite volume, but takes the shape of its container. A gas lacks either a defined shape or volume. Plasma is similar to a gas in that its particles are very far apart, but a gas is electrically neutral and plasma has a charge.

Answer:

B

Explanation:

Liquid

Answer: C

Explanation:

A: 100kg*0m/s (obviously not answer)

B: 20kg*2m/s (=40)

C: 5kg*50m/s (=250, safe bet this one is it)

D: 10kg*5m/s (=50)

5 kg at 50 m/s, with a momentum of 250 kg m/s has the most momentum.

Hence, the correct option is C.

To calculate momentum, we use the formula:

Momentum (p) = Mass (m) × Velocity (v)

Let's calculate the momentum for each option:

A. 100 kg at rest

Momentum = 100 kg × 0 m/s = 0 kg m/s

B. 20 kg at 2 m/s

Momentum = 20 kg × 2 m/s = 40 kg m/s

C. 5 kg at 50 m/s

Momentum = 5 kg × 50 m/s = 250 kg m/s

D. 10 kg at 5 m/s

Momentum = 10 kg × 5 m/s = 50 kg m/s

Therefore, 5 kg at 50 m/s, with a momentum of 250 kg m/s has the most momentum.

Hence, the correct option is C.

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Answer:

distance

Explanation:

it is the distance traveled by light in one year

Answer:

0J

Explanation:

Kahn academy approved

The Workdone is the product of force and distance, Hence, the Workdone on the box from distance x = 0 meters and x = 16 meters is 0 Joules.

Using the graph given :

The work done from x = 0 to x = 16 metres ;

The distance can be split evenly into :

(x = 0 to x = 8) and (x = 8 to x = 16)

Workdone = Force × distance

Workdone from ; x = 0 to x = 8 ;

Force at a distance of 8 meters = - 40N

Workdone = - 40N × 8 m = -320 Nm

Workdone from ; x = 8 to x = 16 ;

Force at a distance of 16 meters = 40 N

Workdone = 40 N × 8 m = 320 Nm

The total workdone :

(-320 + 320) Nm = 0 J

.

Therefore, the Workdone ls 0 Joules.

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