URGENT ANSWER NEEDED
A ball of mass 5Kg moving at 3 m/s collides with another ball of mass 3 kg moving at 5 m/s in the same direction.If the balls move together after the collision in the same direction find their common velocity.

Power to tax is an implied power.

Implied powers are the kind of political powers granted to the United States government that aren't stated in the constitution. These implied powers are needed for the function of any kind of governing body.

Creating a national bank, regulating commerce, collecting tax, raising an army, establishing post offices are some of the implied powers.

Expressed powers are the kind of powers that are directly granted to the federal government found in the constitution.

Few examples of expressed powers are the power to declare war, regulate foreign and interstate commerce, maintain military, conduct foreign relations, etc.

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Answer:

Three uses that ultraviolet radiation is used for is for cleaning tools like for doctors or dentists, suntanning, and photo therapy. This can be okay and worth the risk if used carefully and with protection. Otherwise, it can cause cancer or blindness

Explanation:

The diameter of the coin at the Death Valley is 13.8 x 10⁻⁶m.

The diameter of the coin at the mountains of Greenland is 37.1 x 10⁻⁶m.

Diameter of the U.S penny, d₀ = 1.9 x 10⁻²m

Temperature, T₀ = 20°C = 293 K

Coefficient of linear expansion, α = 2.6 x 10⁻⁵K⁻¹

A) Temperature at Death Valley, T = 48°C = 321 K

So, the diameter of the coin at the Death Valley is given by,

d = α x d₀ΔT

d = 2.6 x 10⁻⁵x 1.9 x 10⁻² x (321 - 293)

d = 13.8 x 10⁻⁶m

B) Temperature at the mountains of Greenland, T = -55°C = 218 K

So, the diameter of the coin at the mountains of Greenland is given by,

d = α x d₀ΔT

d = 2.6 x 10⁻⁵ x 1.9 x 10⁻² x (293 - 218)

d = 37.1 x 10⁻⁶m

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An electrical circuit with a voltage difference of 120 V and a current of more than 15 A has an associated power of 1800 watts.

The pace at which work is completed or energy is converted into an electrical circuit is known as the electric power. It can also be described as a measurement of the amount of energy expended performing labor or moving over time. It is denoted by the letter P.

Electric power can be estimated by multiplying the electric current and voltage differential. Watt is the SI unit of power (w).

The quantity of electricity flowing from hot to neutral is regulated by ground fault circuit interrupters. The line trips if there is a difference. The Ground Fault Circuit Interrupters detect a mismatch as small as 4 or 5 milliamps, and they can become operational as quickly as one thirty second.

P = V.

equal I P = 120V * 15A .

P= 1800 watts

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The correct question is

A circuit breaker is tripped when the current in the circuit is greater than 15 A. If the voltage difference is120 V, what is the power and used when the circuit breaker is tripped?

Answer:

Some of the universe's heavier elements are created by neutron star collisions. ... Light elements like hydrogen and helium formed during the big bang, and those up to iron are made by fusion in the cores of stars. Some heavier elements like gallium and bromine need something more, such as a supernova.

Explanation:

The speed the child will have at the bottom of the arc when she is let go is approximately 6.3 m/s.

To determine the speed of the child at the bottom of the swing, we can use the principle of conservation of energy. At the topmost point of the swing, the child's potential energy is maximum, and at the bottom of the swing, it is converted into kinetic energy.

First, we calculate the potential energy at the topmost point using the formula:

Potential energy (PE) = mass (m) × gravity (g) × height (h)

PE = 55 kg × 9.8 m/s² × 2.7 m × sin(30°)

Next, we equate the potential energy at the top to the kinetic energy at the bottom:

Potential energy at the top (PE) = Kinetic energy at the bottom (KE)

55 kg × 9.8 m/s² × 2.7 m × sin(30°) = 0.5 × 55 kg × v²

Here, v represents the speed at the bottom.

We can solve the equation to find v:

v = √(2 × 9.8 m/s² × 2.7 m × sin(30°))

v ≈ 6.3 m/s

Therefore, the child will have a speed of approximately 6.3 m/s at the bottom of the swing when she is let go.

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The electron configuration of a neutral atom of calcium is 1s²2s²2p⁶3s²3p⁶4s². To determine the number of valence electrons in an atom, we need to look at the outermost electron shell, which in this case is the 4th shell (designated by the number 4 in 4s²).

The 4s² subshell contains 2 electrons, and since the valence electrons are located in the outermost shell, we can conclude that calcium has 2 valence electrons.

Valence electrons are important because they determine the chemical properties of an element. In the case of calcium, which belongs to Group 2 of the periodic table, having 2 valence electrons means that it can lose these electrons to form a stable 2+ cation. Calcium is known to readily lose its 2 valence electrons to achieve a stable electron configuration, resulting in a full 3rd shell (1s²2s²2p⁶).

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Answer:

Batteries are systems that store chemical energy and then release it as electrical energy when they are connected to a circuit. Batteries can be made from many materials, but they all share three main components: a metal anode, a metal cathode and an electrolyte between them. The electrolyte is an ionic solution that allows charge to flow through the system. When a load, such as a light bulb, is connected, an oxidation-reduction reaction occurs that releases electrons from the anode while the cathode gains electrons

Explanation:

The answer is  0.48 kg m^2

Given,

m1 = 0.2 kg

m2 = 0.3 kg

L = 2 m

Let the centre of mass is at a distance d from 0.2 kg.

So, m1 x d = m2 x (L - d)

0.2 x d = 0.3 x (2 - d)

2 d = 6 - 3d

5 d = 6

d = 1.2 m

Moment of inertia about the centre of mass,

I = m1 x d^2 + m2 x (L - d)^2

I = 0.2 x 1.2 x 1.2 + 0.3 x 0.8 x 0.8

I = 0.288 + 0.192

I = 0.48 kg m^2

All bodies have a tendency to resist changes to their current states, according to Newton's second law. A body in motion resists change by not coming to a complete halt right away, just as a body at rest resists change when it is put into motion. Similar to this, a rigid body's rotational inertia refers to the amount of torque necessary to modify the angular velocity of the body.

The concept of a rigid body's rotational inertia is crucial since it clarifies how much torque is needed to accomplish a certain goal. The mass of a rigid body and its distribution with regard to the axis around which it rotates have an impact on its rotational inertia.

The distance of the centre of mass from the axis of rotation increases or decreases the rotational inertia of a rigid body.

m1 x d = m2 x (L - d)

I=13mL2 I = 1 3 m L 2 is the moment of inertia for a rod that spins about an axis perpendicular to the rod and passing through one end. The moment of inertia is I=112mL2 if the axis of rotation passes through the middle of the rod.

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Extrasolar Neptune-sized planets likely have big compositional differences when compared to our own Neptune because they have measured densities that span a factor of 1000.

Neptune is the fourth-largest planet in our solar system, and it is a gas giant similar to Jupiter, Saturn, and Uranus. An extrasolar Neptune-sized planet (also known as an exo-Neptune) is a planet that is Neptune-sized but orbits a star other than the sun.

Exo-Neptunes are often observed using the transit technique, in which the planet passes in front of the star, causing a small drop in brightness that can be detected by telescopes on Earth. As a result, their densities can be calculated by measuring their mass and size.

Exo-Neptunes have measured densities that span a factor of 1000, meaning that their compositions can be vastly different from that of our own Neptune, which has a density of 1.64 g/cm³. This suggests that they may have different formation histories, be composed of different materials, or have different atmospheric conditions.

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Answer:

A. Plane mirror and piece of paper

Explanation:

Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection. An ideal diffuse reflecting surface is said to exhibit Lambertian reflection, meaning that there is equal luminance when viewed from all directions lying in the half-space adjacent to the surface.

The terminal speed of a raindrop is proportional to the square of the radius.

If the radius is doubled, the terminal speed will quadruple.

The terminal speed of a raindrop is the speed at which the drag force from air resistance balances the force of gravity. The drag force is given by F = pACv^2/2, where p is the density of air, A is the cross-sectional area, C is the drag coefficient, and v is the speed.

The cross-sectional area of a spherical raindrop is A = πr^2, where r is the radius of the raindrop.

The force of gravity is given by F = mg, where m is the mass of the raindrop and g is the acceleration due to gravity.

For a raindrop to reach its terminal speed, the drag force must equal the force of gravity. This means that pACv^2/2 = mg.

Solving for v, we get v = (2mg)/(pCπr^2).

The terminal speed is proportional to the square of the radius. This means that if the radius is doubled, the terminal speed will quadruple.

v = (2mg)/(pCπr^2)

If r = 2r, then v = (2mg)/(pCπ(2r)^2) = 4 * (2mg)/(pCπr^2) = 4v

Therefore, the terminal speed will quadruple.

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The amount of gravitational force that acts on a space vehicle while in earth orbit is almost zero but not absolute zero.

There is no ground force or opposing natural force to gravity.

Because the earth is not a perfect sphere, the value of "g" is lowest at the equator. At the equator, its radius is at its largest. Thus, the equator is the location where g will be smallest according to the equation

g = GM/R2.

All items in the planet's gravitational field will be lost in space if gravity abruptly vanishes. We would experience levity. Essentially, if gravity is equal to zero, then there will be no acceleration caused by gravity.

Astronauts can float within their spaceship or outside during a spacewalk in microgravity. Moving heavy stuff is simple. Astronauts, for instance, can merely use their fingertips to manipulate machinery weighing hundreds of pounds.

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The type of investigation is she is conducting by determining the period in which it is from is referred to as the geologic age.

This is defined as the time period in which the fossil was present on the earth and can be done using various methods such as radiometric dating methods etc. The age gotten will help scientists to ascertain different information about the organism in this context.

Fossil on the other hand which is the remains of organisms preserved in the earth crust can be studied to find out the differences in the features of organisms and how they were able to adapt to the changing environmental conditions.

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The magnetic field inside the solenoid will remain the same if the radius of the solenoid is doubled to 2b, but all the other quantities remain the same.

A solenoid is an electrical device that converts electrical energy into mechanical motion. It is essentially a coil of wire that is wound in a specific way around a cylindrical core. When an electric current is passed through the coil, it generates a magnetic field that interacts with the core, causing it to move.

Solenoids are commonly used in a wide range of applications, such as in locks, valves, and electric motors. They can be used to control the flow of fluids or gases or to actuate mechanical components. The strength of the magnetic field generated by a solenoid is directly proportional to the current flowing through the coil, and the number of turns in the coil. Solenoids can be designed to produce a range of forces, depending on the application.

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Answer:

dmakqkwnwj fddfgdddwsf

Answer:

A biotic factor is a living thing and has an impact on the environment whilst Abiotic factor is not a living thing but has an impact on the environment

Answer:

I think the answer is D.)

Explanation:

If it means something needs to melt into liquid i would have gone with B.) or C.) but since it doesn't specifiy. I thought D.) since all you have to do is heat it and it melts or boils.

Answer: Take a picture of the question please

Explanation:

The gravitational force would triple between earth and moon attraction.

The gravitational attraction of Earth to the apple are both the same. in step with Newton, every person draws each other frame with a force that, for any  our bodies, is without delay proportional to the prod-cut in their loads and inversely proportional to the square of the distance between their centers.

In line with the regularly occurring regulation of gravitation,  gadgets entice every different with same pressure but in contrary direction. consequently, the earth attracts the moon with the same force because the moon attracts the earth.

The extra an object's mass, the extra gravitational force it exerts. So, to start answering your question, Earth has a more gravitational pull than the moon honestly because the Earth is extra massive.

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This pRTICULAR QUESTION IS HARD TO anSwer <3

Answer:

He is pink panther. How nerdy does he sound?

Explanation:

We will have the following:

So, the butterfly traveled 3298 meters.

The maximum energy Emax stored in the capacitor at any time during the current oscillations is 3.13 × 10⁻⁸ J.

The capacitor contains the amount of energy found in part A 2 * 298.28 = 596.56 times per second.

Part A: The energy stored in a capacitor can be calculated using the formula:

\(Emax = 0.5 * C * V^2\)

where

C is the capacitance and

V is the maximum voltage across the capacitor.

In an L-C circuit, the maximum current in the inductor occurs when the charge on the capacitor is zero and the voltage across the capacitor is at its maximum.

At this point, all of the energy in the circuit is stored in the capacitor.

The maximum voltage across the capacitor can be found using the formula:

Vmax = Imax / (ωC)

where

Imax is the maximum current in the inductor and

ω is the angular frequency of the circuit.

The angular frequency of an L-C circuit is given by:

ω = 1 / √(LC)

Substituting the given values, we get:

ω = 1 / √(0.440 H * 0.240 nF)

ω = 1 / (0.000532)

ω = 1876.68 rad/s

Therefore, the maximum voltage across the capacitor is:

Vmax = (1.10 A) / (1876.68 rad/s * 0.240 nF)

Vmax = 1.83 × 10⁴ V

Finally, the maximum energy stored in the capacitor is:

Emax = 0.5 * (0.240 nF) * (1.83 × 10⁴ V)²

Emax = 3.13 × 10⁻⁸ J

Therefore, the maximum energy Emax stored in the capacitor at any time during the current oscillations is 3.13 × 10⁻⁸ J.

Part B: The frequency of the oscillations in the circuit can be found using the formula:

f = ω / (2π)

Substituting the value of ω found earlier, we get:

f = 1876.68 rad/s / (2π)

f = 298.28 Hz

The capacitor contains the amount of energy found in part A twice during each cycle of the oscillation, once when the charge on the capacitor is maximum and once when the charge is minimum.

Therefore, the capacitor contains the amount of energy found in part A 2 * 298.28 = 596.56 times per second.

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Answer:

A great review helps your employees identify growth opportunities and potential areas of improvement without damaging employee-manager relations, but writing a ...

Explanation:

The new electrostatic force will be 384 units.  

The electrostatic force of attraction between two charges \(q_{1} \\\)(charge of object 1)  and \(q_{2}\)(charge of object 2) separated by a distance d is given by

\(F = \frac{q_{1} q_{2}}{4\pi E_{0} d^{2} } \\\)

\(E_{0} = 8.854 * 10^{-12} C^{2} N^{-1} m^{-1}\) is the permittivity of free space.

Initially, we have,

\(\frac{q_{1} q_{2}}{4\pi E_{0} d^{2} } =F_{1} = 8 units\)  

Now, if the charge of object 1 is multiplied by 1, the charge of object 2 is multiplied by 3, and the distance separating objects 1 and 2 is divided by 4, we have, \(q_{1} =q_{1}, q_{2} =3q_{2} , d=\frac{d}{4}\).

The new electrostatic force will be,

\(F_{2} = \frac{q_{1} 3q_{2}}{4\pi E_{0} (\frac{d}{4} )^{2} } \\\\\) units.

We have, \(F_{1} = 8 units= \frac{q_{1} q_{2}}{4\pi E_{0} d^{2} } \\\)

Hence,

\(F_{2} =\frac{8*3}{(\frac{1}{4}) ^{2} } units= 384 units.\)

Hence, the new electrostatic force will be 384 units.

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b) Higher frequency and shorter wavelength

According to the laws of thermal radiation, hotter objects emit photons with higher frequency and shorter wavelength. This relationship is described by Planck's law and the Stefan-Boltzmann law. As the temperature of an object increases, the average energy of its emitted photons also increases, resulting in higher frequencies and shorter wavelengths. This phenomenon is commonly observed in everyday life, where hotter objects like a glowing red-hot piece of metal or a flame emit light that appears bluish-white, indicating a higher frequency and shorter wavelength compared to cooler objects that emit light in the red or orange spectrum.

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Let us cut the work done on gas as we move along the direct path

W=-(-area undercurve),=-[(1.00atm)(4.l-2)+1/2(4-1)(4-2)],W=-5atm

The change in internal energy=-88.5J

What does physics mean by internal energy?

In thermodynamics, internal energy is a property or state functional that characterises a substance's energy in the absence of capillary effects and the impacts of external magnetic, electric, and other fields.

What makes it internal energy?

Internal Energy is the energy in a thermodynamics that is NOT either the system's total kinetic energy or the gravitational potential energy. The system's internal freedom levels are connected to the internal energy.

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