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3 years ago

Which statement best describes the difference between acceleration and deceleration?

Physics

1 answer:

natima [27]3 years ago

7 0

Acceleration is the rate at which an object picks up speed. deceleration is the rate at which an object loses speed.

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What is the water pressure at the deepest part of the ocean in the Challenger Deep in the Mariana Trench at 10,994 m below the s

Zanzabum

Answer:

The pressure is 107417976.4 N $m^{-2}$

Explanation:

The pressure of water at a given height/ depth can be determined by:

Pressure = σhg

Where: σ is the density of water, h is the height/ depth, and g is the gravitational force.

Given that; h = 10994 m, but σ = 997 kg/ $m^{3}$ and g = 9.8 m/ $s^{2}$

Thus, the pressure of water at the deepest part of the ocean will be:

Pressure = 997 x 10994 x 9.8

= 997 x 107741.2

= 107417976.4

Pressure = 107 420 KN $m^{-2}$

The pressure of water at 10994 m below the surface is 107417976.4 N $m^{-2}$

8 0

3 years ago

The creation and study of new and very massive elementary particles is an important part of contemporary physics. To create a pa

dimaraw [331]

Consider a collision between two protons that is perfectly inelastic: an incident proton with mass m(p), kinetic energy K, and momentum magnitude p combines with a target proton that was initially stationary to form a single product particle with mass M.

Now,

In this case, the problem is alleviated by using colliding beams.

A pair of interacting particles' combined momentum may be zero.

After the collision, the center of mass is at rest.

Therefore, all the initial kinetic energy can be used to create particles.

Let K be the kinetic energy of each of the two identical colliding particles.

Therefore, the energy released by the two colliding beams are:

E₁ = K + mc² and E₂ = K + mc²

In the final state,

E(f) = Mc² where M is the new mass of the single product after the collision.

By conservation of energy,

E₁ + E₂ =E(f)

K + mc² + K + mc² = Mc²

2K + 2mc² = Mc²

Taking 2mc² common, we get

Mc² = 2mc²[ 1 + (K/mc²)]

Learn more about collision here:

brainly.com/question/12644900

#SPJ4

4 0

1 year ago

What is good givernance

Grace [21]

Answer:

measuring

Explanation:

In international development, good governance is a way of measuring how public institutions conduct public affairs and manage public resources in a preferred way. Governance is "the process of decision-making and the process by which decisions are implemented"

8 0

3 years ago

Read 2 more answers

Un tren viaja inicialmente a 16m/s se acelera constantemente a razón de 2m/s2 en la misma dirección. ¿Cuán lejos viajará en 20s?

omeli [17]

Answer:

d = 720 s

Explanation:

The question says, "A train initially traveling at 16m / s accelerates constantly at a rate of 2m / s2 in the same direction. How far will it travel in 20s?"

Initial speed, u = 16 m/s

Acceleration, a = 2m/s²

We need to find the distance covered by it in 20 seconds. Let the distance is d. Using the second equation of motion,

$d=ut+\dfrac{1}{2}at^2\\\\d=16\times 20+\dfrac{1}{2}\times 2\times 20^2\\\\d=720\ m$

So, it will cover 720 m in 20 seconds.

4 0

3 years ago

Help please!-

BigorU [14]

Answer:

Current = 2 Amperes

Explanation:

Given the following data;

Resistance = 8 Ohms

Power = 32 W

To find the amount of current going through the speaker;

Mathematically, power can be calculated using the formula;

Power = current² * resistance

Substituting into the formula, we have;

32 = current² * 8

Current² = 32/8

Current² = 4

Taking the square root of both sides, we have;

Current = √4

Current = 2 Amperes

8 0

3 years ago