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3 years ago

What gives an atom its charge?

2 answers:

5 0

An atom with a neutral charge is one where the number of electrons is equal to the atomic number

hope i helped

givi [52]3 years ago

4 0

A Neutral, stable atom has no charge as it has an equal number of Protons and Electrons. An Atom gains a charge by the loss or gain of electrons thus becoming an Ion. The loss of 1 or more electrons will give the atom a Positive charge (now having more Protons then Neutrons) and becomes a Positive Ion (or Cation). hope that helped

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What is the process by which rock fragments are moved from the source

timurjin [86]

Answer:

Sedimentary

Explanation:

The process by which rock fragments are moved from the source is Sedimentary.

8 0

4 years ago

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Before collecting a specimen of urine or feces, the nursing assistant asks the nurse or consults the lab for?

bulgar [2K]

Before collecting a specimen of urine or feces, the nursing assistant asks the nurse or consults the lab for which storage and delivery method to use.

There are different tests that need to be performed on a urine or feces specimen. It depends on the patients that which test would be asked for him to be done.

The storage and delivery methods for urine and feces in the case of different tests has to be consulted by the nurse or consultant.

Incase of an emergency test, whose results are immediately required the method of delivery is a fast mode one. For patients that have a mild disease or are not at risk, other reliable methods can be used. Each specimen should be properly labeled for proper checking.

To learn more about urine specimen, click here:

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2 years ago

Calculate the speed of a car that traveled 200 kilometers in 3 hours.

Elza [17]

Answer:

right option is :- A

Explanation:

3 0

3 years ago

A 10 g bullet is fired into, and embeds itself in, a 2 kg block attached to a spring with a force constant of 19.6 n/m and whose

dmitriy555 [2]

Answer:

$x=0.478\ m$ is the compression in the spring

Explanation:

Given:

mass of the bullet, $m=10\ g=0.01\ kg$

mass of block, $M=2\ kg$

stiffness constant of the spring, $k=19.6\ N.m^{-1}$

initial velocity of the spring just before it hits the block, $u=300\ m.s^{-1}$

Now since the bullet-mass gets embed into the block, we apply the conservation of momentum as:

$m.u=(M+m).v$

$0.01\times 300=(2+0.01)\times v$

$v=1.4925\ m.s^{-1}$

Now this kinetic energy of the combined mass gets converted into potential energy of the spring.

$\rm Kinetic\ energy=Spring\ potential\ energy$

$\frac{1}{2} (M+m).v^2=\frac{1}{2} k.x^2$

$\frac{1}{2} \times (2+0.01)\times 1.4925^2=\frac{1}{2} \times 19.6\times x^2$

$x=0.478\ m$ is the compression in the spring

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3 years ago

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3 years ago