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4 years ago

14

Why is the mass of carbon atom greater than the total mass of its protons and electrons

1 answer:

VLD [36.1K]4 years ago

8 0

One or more neutrons in the nucleus add mass to the atom.

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URGENT PLEASE ANSWER: It takes about four minutes to bake a potato in a 1000 W microwave oven. How much energy is used?

mamaluj [8]

0.07 is the correct answer

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3 years ago

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This is a term use to describe an ecological community in which moisture and temperature are high

Yuri [45]

It is described as having a marshy surface where mosses, lichens, berries and low shrubs grow with mucky soil and permafrost underneath. This is a term use to describe an ecological community in which moisture and temperature are high. This is a northern hemisphere habitat with wet soil.

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3 years ago

The mass of the rock is 1220 kg. It had 400 J of potential energy when it rolled down the hill. calculate the heihht.

Sauron [17]

potential is equal to mgh

we know that mass = 1220 kg

g=9.8 0r 10

400=1220*9.8*x

400=11956x

x=400/11956

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3 years ago

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In a lab experiment, two identical gliders on an air track are held together by a piece of string, compressing a spring between

ddd [48]

Answer:

Part a)

$v_2 = -0.300$

Part b)

Here final kinetic energy is more than the initial kinetic energy

This increase in kinetic energy is due to spring connected between them as the spring energy is converted into kinetic energy of two blocks

Explanation:

Part a)

As we know that there is no external force on the system of two gliders

So here we can use momentum conservation for two gliders

So we will have

$m_1 v_1 + m_2 v_2 = (m_1 + m_2)v_i$

$m_1 = m_2$

$1.300 + v_2 = 2(0.500)$

$v_2 = -0.300$

Part b)

now we will have

initial kinetic energy of both gliders is given as

$K_i = \frac{1}{2}(m + m)(0.500)^2$

$K_i = 0.25m$

Final kinetic energy of two gliders

$K_f = \frac{1}{2}m(0.300)^2 + \frac{1}{2}m(1.300)^2$

$K_f = 0.89 m$

so here final kinetic energy is more than the initial kinetic energy

This increase in kinetic energy is due to spring connected between them as the spring energy is converted into kinetic energy of two blocks

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3 years ago

Which part of the scientific method is most likely to lead to changes in a theory? (1 point)

Ksenya-84 [330]

Answer:

results

Explanation:

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3 years ago