4 years ago

How is the Periodic Table of Elements organized?

Physics

1 answer:

IceJOKER [234]4 years ago

7 0

It's by number of protons

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Which has more kinetic energy, a 4.0 kg bowling ball moving at 1.0 m/s or a 1.0 kg

jolli1 [7]

Answer:

The kinetic energy of bocce ball is more.

Explanation:

Given that,

Mass of a bowling ball, m₁ = 4 kg

Speed of the bowling ball, v₁ = 1 m/s

Mass of bocce ball, m₂ = 1 kg

Speed of bocce ball, v₂ = 4 m/s

We need to say which has more kinetic energy.

The kinetic energy of an object is given by :

$E=\dfrac{1}{2}mv^2$

Kinetic energy of the bowling ball,

$E_1=\dfrac{1}{2}m_1v_1^2\\\\E_1=\dfrac{1}{2}\times 4\times (1)^2\\\\E_1=2\ J$

The kinetic energy of the bocce ball,

$E_2=\dfrac{1}{2}m_2v_2^2\\\\E_2=\dfrac{1}{2}\times 1\times (4)^2\\\\E_2=8\ J$

So, the kinetic energy of bocce ball is more than that of bowling ball.

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3 years ago

An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than beryll

3241004551 [841]

The correct answer is Sodium

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3 years ago

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Which best esplains how the body maintains homeostasis.

Lisa [10]

a. all systems work together to stabilize the body

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What is an odometer?

ra1l [238]

Answer:

It is a instrument used to measure the distance traveled by a vehicle.

Explanation:

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3 years ago

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Light travels 186 000 miles per second.how many miles dose light travel in one year

Troyanec [42]

(186,000 mi/sec) x (3,600 sec/hr) x (24 hr/da) x (365 da/yr)

= (186,000 x 3,600 x 24 x 365) mi/yr

= 5,865,696,000,000 miles per year (rounded to the nearest million miles)

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4 years ago