What is released when atoms are attached ?

What is released when atoms are attached ?
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Answer :

Nuclear energy is emitted when atoms are joined together.
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A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The mass is displaced 3 meters from its equilibrium position and released. What is the kinetic energy of the mass as it passes through its equilibrium position?

Description : A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The ... and released. What is the kinetic energy of the mass as it passes through its equilibrium position? 

Last Answer : ANSWER: 90 JOULES

A simple pendulum consisting of a mass M attached to a string of length L is released from rest at an angle `alpha`. A pin is located at a distance l

Description : A simple pendulum consisting of a mass M attached to a string of length L is released from rest at an angle `alpha`. A pin is located at a distance l

Last Answer : A simple pendulum consisting of a mass M attached to a string of length L is released from rest at an angle `alpha` ... ^(-1) [(L cos alpha-l)/(L+l)]`

Which statement about the carbonyl group is NOT true? (a) The carbonyl carbon is sp2 hybridized. (b) The bond angles among the three atoms attached to the carbonyl carbon are 120°. (c) The three atoms attached to the carbonyl carbon form a nonplanar geometry. (d) The carbonyl group forms resonance structures.

Description : Which statement about the carbonyl group is NOT true? (a) The carbonyl carbon is sp2 hybridized. (b) The bond angles among the three atoms attached to the carbonyl carbon are 120°. (c) ... attached to the carbonyl carbon form a nonplanar geometry. (d) The carbonyl group forms resonance structures.

Last Answer : The three atoms attached to the carbonyl carbon form a nonplanar geometry

Two compounds have the same composition and also have the same atoms attached to the same atoms, although with different orientations in space. These compounds are (a) Identical (b) Position isomers (c) Structural isomers (d) Stereoisomers

Description : Two compounds have the same composition and also have the same atoms attached to the same atoms, although with different orientations in space. These compounds are (a) Identical (b) Position isomers (c) Structural isomers (d) Stereoisomers

Last Answer : Stereoisomers

How many atoms are attached to an atom having a sp hybridization? (a) 0 (b) 1(c) 2 (d) 3

Description : How many atoms are attached to an atom having a sp hybridization? (a) 0 (b) 1 (c) 2 (d) 3

Last Answer : 2

What shape is made by a chain attached at both ends? (math question, see details)

Description : What shape is made by a chain attached at both ends? (math question, see details)

Last Answer : answer:It’s known as a catenary (also here). Mathematically it is the same as the graph of hyperbolic cosine, cosh(x). You are correct that it is not a parabola. The equation has the form y = e^x + e^-x, though I don’t have the exact formula you seek.

A body which is attached to a spring undergoes simple harmonic motion. The magnitude of the body's acceleration is: w) constant x) proportional to its displacement from its equilibrium position y) zero z) always increasing.

Description : A body which is attached to a spring undergoes simple harmonic motion. The magnitude of the body's acceleration is: w) constant x) proportional to its displacement from its equilibrium position y) zero z) always increasing.

Last Answer : ANSWER: X -- PROPORTIONAL TO ITS DISPLACEMENT FROM ITS EQUILIBRIUM POSITION 

A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Description : A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Last Answer : ANSWER: X -- 50 NEWTONS

A zinc plate is attached to the knob of a negatively charged electroscope. What will happen to the leaves of the electroscope when ultraviolet light is shown on the zinc plate. Will the leaves: w) collapse at once x) gradually come together y) gradually spread further apart z) remain unaffected

Description : A zinc plate is attached to the knob of a negatively charged electroscope. What will happen to the leaves of the electroscope when ultraviolet light is shown on the zinc plate. Will the leaves: w) collapse at once x) gradually come together y) gradually spread further apart z) remain unaffected

Last Answer : ANSWER: X -- GRADUALLY COME TOGETHER

The TOTAL energy of a vertically vibrating block attached to a spring is the same: w) only at those points above the equilibrium position x) only at the equilibrium position y) only at those points below the equilibrium position z) at all points in its motion

Description : The TOTAL energy of a vertically vibrating block attached to a spring is the same: w) only at those points above the equilibrium position x) only at the equilibrium position y) only at those points below the equilibrium position z) at all points in its motion

Last Answer : ANSWER: Z -- AT ALL POINTS IN ITS MOTION

An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?

Description : An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?

Last Answer : ANSWER: 2 METERS

In an atomic explosion, enormous energy is released why?

Description : In an atomic explosion, enormous energy is released why?

Last Answer : – Due to the conversion of mass into energy

What is a neuron? (1) Basic unit of energy (2) Particle released during radioactivity (3) The anti-particle of neutron (4) Basle unit of nervous system

Description : What is a neuron? (1) Basic unit of energy (2) Particle released during radioactivity (3) The anti-particle of neutron (4) Basle unit of nervous system

Last Answer : (4) Basle unit of nervous system Explanation: A neuron is a nerve cell that is the basic building block of the nervous system. Neurons are specialized to transmit information ... highly specialized nerve cells are responsible for communicating information in both chemical and electrical. forms.

In which of the following processes is energy released? (1) Respiration (2) Photosynthesis (3) Ingestion (4) Absorption

Description : In which of the following processes is energy released? (1) Respiration (2) Photosynthesis (3) Ingestion (4) Absorption

Last Answer : (1) Respiration Explanation: Cellular respiration is the set of the metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into ... molecules into smaller ones, releasing energy in the process as they break high-energy bonds.

How much calorie of energy is released by a boiled egg? (1) 40 (2) 50 (3) 60 (4) 77

Description : How much calorie of energy is released by a boiled egg? (1) 40 (2) 50 (3) 60 (4) 77

Last Answer : (4) 77 Explanation: 77-78 calories are released in a large size boiled egg. Boiled eggs are eggs (typically chicken eggs) cooked by immersion in boiling water with their shells unbroken.

Einstein's mass-energy relationship states that if the mass decreases by Δm, the energy released ΔE is given by A. ΔE = Δm × c, where "c" denotes the speed of light. B. ΔE = Δm × c², where "c" denotes the speed of light. C. ΔE = Δm ⁄ c, where "c" denotes the speed of light. D. ΔE = Δm ⁄ c², where "c" denotes the speed of light

Description : Einstein's mass-energy relationship states that if the mass decreases by Δm, the energy released ΔE is given by A. ΔE = Δm c, where "c" denotes the speed of light. B. ΔE = Δm c², where "c" ... where "c" denotes the speed of light. D. ΔE = Δm ⁄ c², where "c" denotes the speed of light

Last Answer : ΔE = Δm × c², where "c" denotes the speed of light.

Two hockey pucks, of unequal mass and connected by a spring of negligible mass, rest on a horizontal frictionless surface. The spring is released, and the pucks move apart. The center of mass of the two pucks does one of the following. Does it: w) move in a circle x) move in the direction of the greater mass y) remain stationary z) move in the direction of the smaller mass

Description : Two hockey pucks, of unequal mass and connected by a spring of negligible mass, rest on a horizontal frictionless surface. The spring is released, and the pucks move apart. The center of mass of ... the direction of the greater mass y) remain stationary z) move in the direction of the smaller mass

Last Answer : ANSWER: Y -- REMAIN STATIONARY

A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the instant the helicopter is 60 meters above the ground it releases a package. What is the magnitude and direction of the velocity of the package, relative to the ground, the instant the package is released by the helicopter?

Description : A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the instant the helicopter is 60 meters above the ground it releases a package. What is ... of the package, relative to the ground, the instant the package is released by the helicopter?

Last Answer : ANSWER: 6 METERS/SECOND UP

What is a neuron ? (1) Basic unit of energy (2) Particle released during radioactivity (3) The anti-particle of neutron (4) Basic unit of nervous system

Description : What is a neuron ? (1) Basic unit of energy (2) Particle released during radioactivity (3) The anti-particle of neutron (4) Basic unit of nervous system

Last Answer : Basic unit of nervous system

In which of the following processes is energy released ? (1) Respiration (2) Photosynthesis (3) Ingestion (4) Absorption

Description : In which of the following processes is energy released ? (1) Respiration (2) Photosynthesis (3) Ingestion (4) Absorption

Last Answer : Respiration

How much calorie of energy is released by a boiled egg ? (1) 40 (2) 50 (3) 60 (4) 77

Description : How much calorie of energy is released by a boiled egg ? (1) 40 (2) 50 (3) 60 (4) 77

Last Answer : 77

What are the properties of different atoms that have no protons?

Description : What are the properties of different atoms that have no protons?

Last Answer : Electrons need particles with opposite charge to stay attracted, so need an equal number of protons in the middle. It is possible, however, to have an atom with no neutron. Electrons don’t need neutrons to stay in place.

Who discovered that atoms are fissionable ?

Description : Who discovered that atoms are fissionable ?

Last Answer : : Atomic fiction is discovered by Ottohan and Stressman

What does Atoms mean ?

Description : What does Atoms mean ?

Last Answer : Atoms means atom.

What is the number of protons and atomic number of atoms of matter ?

Last Answer : The number of protons and the number of atoms of the atom of matter are equal to each other.

Metals are good conductors of electricity because - (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Description : Metals are good conductors of electricity because - (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Last Answer : (1) they contain free electrons Explanation: Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points.

In a Laser (say neon laser) all the atoms emit the light waves of – (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Description : In a Laser (say neon laser) all the atoms emit the light waves of – (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Last Answer : (4) All of the above Explanation: In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) ... photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation.

Metals are good conductors of electricity because – (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Description : Metals are good conductors of electricity because – (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Last Answer : (1) they contain free electrons Explanation: Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points.

10 mole of carbon contains A. 6.02 × 1024 atoms B. 6.03 × 1023 atoms C. 6.02 × 1023 atoms D. 6.04 × 1024 atoms

Description : 10 mole of carbon contains A. 6.02 × 1024 atoms B. 6.03 × 1023 atoms C. 6.02 × 1023 atoms D. 6.04 × 1024 atoms

Last Answer : 6.02 × 1024 atoms

Estimate the number of atoms comprising a silicon chip that is 0.2 millimeters by 0.2 millimeters by 0.1 millimeters, given that the density of silicon is 2.34 grams per cubic centimeter, the number of atoms in a gram-weight is approximately 6 x 1023 atoms, and the atomic weight of silicon is 28:

Description : Estimate the number of atoms comprising a silicon chip that is 0.2 millimeters by 0.2 millimeters by 0.1 millimeters, given that the density of silicon is 2.34 grams per cubic centimeter, the number of atoms in a gram-weight is approximately 6 x 1023 atoms, and the atomic weight of silicon is 28:

Last Answer : ANSWER: 2 x 1017

Most of the new atoms formed when atoms in a nuclear reactor capture neutrons without fissioning are: w) fission products x) activation products y) actinides z) lead isotopes

Description : Most of the new atoms formed when atoms in a nuclear reactor capture neutrons without fissioning are: w) fission products x) activation products y) actinides z) lead isotopes

Last Answer : ANSWER: Y -- ACTINIDES

In a breeder reactor, new fuel is formed as non-fuel uranium-238 absorbs a neutron and ultimately becomes which of the following fissionable atoms: w) uranium-235 x) plutonium-239 y) uranium-239 z) neptunium-239

Description : In a breeder reactor, new fuel is formed as non-fuel uranium-238 absorbs a neutron and ultimately becomes which of the following fissionable atoms: w) uranium-235 x) plutonium-239 y) uranium-239 z) neptunium-239

Last Answer : ANSWER: X -- PLUTONIUM-239

How many atoms per unit cell are in a face-centered-cubic crystal? w) two x) four y) six z) eight

Description : How many atoms per unit cell are in a face-centered-cubic crystal? w) two x) four y) six z) eight

Last Answer : ANSWER: X -- FOUR

If two atoms exert equal attractions for electrons, they can form: w) a nonpolar covalent bond x) an ionic bond y) a polar covalent bond z) no bond

Description : If two atoms exert equal attractions for electrons, they can form: w) a nonpolar covalent bond x) an ionic bond y) a polar covalent bond z) no bond

Last Answer : ANSWER: W -- A NONPOLAR COVALENT BOND

Two atoms of the same element will have the same number of protons. If they have a different number of neutrons, what are they called?

Description : Two atoms of the same element will have the same number of protons. If they have a different number of neutrons, what are they called?

Last Answer : ANSWER: ISOTOPES

In a Laser (say neon laser) all the atoms emit the light waves of (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Description : In a Laser (say neon laser) all the atoms emit the light waves of (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Last Answer : All of the above