3 years ago

What equals the number of protons in an atom

2 answers:

6 0

<span>Each atom contains an equal number of protons and electrons; these particles will be equal in value to an element's atomic number</span>

kakasveta [241]3 years ago

3 0

The Atomic Number of the element does.

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Calculate the kinetic energy of a 0.032 kg ball as it leaves a hand to be thrown upwards at 6.2 m/s

AnnZ [28]

Answer:

The ball will have a kinetic energy of 0.615 Joules.

Explanation:

Use the kinetic energy formula

$E_k = \frac{1}{2}mv^2 = \frac{1}{2}0.032kg\cdot 6.2^2 \frac{m^2}{s^2}= 0.615J$

The kinetic energy at the moment of leaving the hand will be 0.615 Joules. (From there on, as it ball is traveling upwards, this energy will be gradually traded off with potential energy until the ball's velocity becomes zero at the apex of the flight)

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3 years ago

SI unit of specific heat is

mote1985 [20]

Answer:

The S.I unit of heat is Joule .

Hope it helps you :--)

Explanation:

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2 years ago

Read the scenario below and answer the question that follows. Jane is a psychologist. She submits a study on sleep to a prestigi

Setler79 [48]

A:the other options are examples of unethical behavior

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3 years ago

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mihalych1998 [28]

Answer:

Gravity

Explanation:

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3 years ago

2. a) Force affects the body and results in different changes. The grid given below

postnew [5]

Answer:

Please find the answer in the explanation

Explanation:

Given that Force affects the body and results in different changes.

The grid that has the words related to the effects of force are :

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c) Force has magnitude as well as direction.

e) Force acting on an object may cause a change in its state of motion or a change in its shape.

f) A force can act on an object with or without being in contact with it.

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