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2 years ago

What do these two have an common ? A slice of banana turning brown, A banana getting ripe on the counter

Physics

1 answer:

expeople1 [14]2 years ago

5 0

Answer:

After some time on the counter, ripe bananas will develop a brown peel. Bananas contain the enzyme polyphenol oxidase, and when the enzyme interacts with oxygen, it causes a chemical reaction. This chemical reaction, known as enzymatic browning, changes the banana's peel and fruit to brown

Explanation:

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Dr. Metallica wants to change the property of an alloy? How could she do this? SELECT ALL THAT APPLY.

alukav5142 [94]

Answer:

METALLICA = HOT BAND

Explanation:

The answer is a, you're welcome babes

8 0

3 years ago

Read 2 more answers

A ball is thrown toward the ground. The figure shows the direction of the ball before it reaches the ground and the direction of

Kruka [31]

According to the principle of conservation of momentum, the momentum of the bouncing ball changes.

Also, the ball bounces less than its original height because some energy is lost due to heat, friction and air resistance.

<h3>How is momentum conserved in the bounce of balls?</h3>

The principle of conservation of momentum states that for any collision occurring in an isolated system, momentum is conserved.

a. For a body such as a ball dropped from a height, the total momentum is conserved.

However, there is a change in momentum of the ball as some of its momentum is transferred to the earth.

b. When the ball a ball of mass M is released from a height H1, it bounces to a height H2, which is about 1/2 of H1.

The value of H2 is less than that of H1 because some of the energy is converted to heat energy due to friction and air resistance, thereby its energy is less than its original value.

Therefore, the momentum of the bouncing ball is changes. Also, the ball bounces less than its original height because some energy is lost due to heat, friction and air resistance.

Learn more about momentum at: brainly.com/question/7538238

7 0

2 years ago

How does technology or research of a nuclear physicist involve electromagnetic or sound waves

kap26 [50]

Answer: While quantum physics is usually concerned with the basic building blocks of light and matter, for some time scientists have now been trying to investigate the quantum properties of larger objects, thereby probing the boundary between the quantum world and everyday life. For this purpose, particles are slowed down with the help of electromagnetic waves and the motional energy is drastically reduced. Therefore, one also speaks of "motional cooling."

Quantum properties occur when particles are cooled to their fundamental quantum ground state, that is to the lowest possible energy level. While so far the only way to cool particles to the ground state has been to make them interact with photons trapped in an electromagnetic resonator, theoretical physicists led by Carlos Gonzalez-Ballestero and Oriol Romero-Isart from the Department of Theoretical Physics at the University of Innsbruck and the Institute of Quantum Optics and Quantum Information (IQOQI) of the Austrian Academy of Sciences in collaboration with experimentalist Jan Gieseler from Harvard University and ICFO in Barcelona now propose to make the motion of magnetic particles interact with the internal acoustic waves that are confined inside every particle.

Explanation:

Sound waves in micro-magnets

In analogy to photons -- the quanta of light -- vibrations in a solid body can be described as so-called phonons. These small sound wave packets propagate through the crystal lattice of the solid. "The phonons are very isolated and interact with the movement of the particle motion only through magnetic waves," explains Carlos Gonzalez-Ballestero. "In our work we now show that this interaction can be controlled by a magnetic field." This allows to realize quantum experiments without photons, and therefore even with light-absorbing particles. "Conversely, we also show that the strong interaction between motion and phonons provides a path to probe and manipulate the elusive and exotic dynamics of acoustic and magnetic waves in very small particles," adds Oriol Romero-Isart. The new method also opens up new possibilities for quantum information processing, for example, by using phonons as a quantum memory.

4 0

3 years ago

Heat gained or lost is mass times specific heat times change in temperature.

BlackZzzverrR [31]

the answer would be B

6 0

3 years ago

Read 2 more answers

You’re standing at the highest point on the Moon, 10,786 mm above the level of the Moon’s mean radius. You’ve got a golf club an

Anna71 [15]

Answer:

A) v = 1,675 10³ m / s , B) r₂ = 11,673 10⁶ m

Explanation:

A) This exercise we must use Newton's second law, where the forces of gravity are the Moon

F = m a

acceleration is centripetal

a = v² / r

force is the force of universal attraction

F = G m M / r²

we substitute

G m M / r² = m v² / r

v² = G M / r

distance

r = R_moon + h

r = 1.74 10⁶ +1.0786 10⁴

r = 1,750786 10⁶ m

we calculate

v = √ (6.67 10⁻¹¹ 7.36 10²² / 1.75 10⁶)

v = √ (2,8052 10⁶)

v = 1,675 10³ m / s

B) let's use energy conservation

Starting point. In the mountain

Em₀ = K + U = ½ m v² + G m M / r

Final point. Where the speed is zero

$Em_{f}$ = U = G mM / r₂

Em₀ = Em_{f}

½ m v² + G m M / r = G mM / r₂

1 / r₂ = (½ v₂ + G M / r) / GM

let's calculate

1 / r₂ = (½ (1,675 10³)² + 6.67 10⁻¹¹ 7.36 10²² / 1.75 10⁶) /(6.67 10⁻¹¹ 7.36 10²²)

1 / r₂ = (1,4028 10⁶ + 2,805 10⁶) / 49.12 10¹¹

1 / r₂ = 8.5664 10⁻⁷

r₂ = 11,673 10⁶ m

6 0

3 years ago