Why is the current atomic model called the "electron cloud model?

1 answer:

5 0

The electron cloud model is the orbitals. Its called that because the model demonstrates the atom. The electrons are in the orbital cloud.

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1. A big league hitter attacks a fastball! The ball has a mass of 0.16 kg. It is pitched at 38 m/s. After the player hits the ba

MariettaO [177]

Momentum = (mass) x (velocity)

Original momentum before the hit =

   (0.16 kg) x (38 m/s) this way <==

   =    6.08 kg-m/s this way <==

Momentum after the hit =

   (0.16) x (44 m/s) that way ==>

   = 7.04 kg-m/s that way ==>

Change in momentum = (6.08 + 7.04) = 13.12 kg-m/s that way ==> .
-----------------------------------------------

Change in momentum = impulse.

   Impulse = (force) x (time the force lasted)

13.12 kg-m/s = (force) x (0.002 sec)

(13.12 kg-m/s) / (0.002 sec) = Force

   6,560 kg-m/s² = 6,560 Newtons = Force

    ( about 1,475 pounds ! ! ! )

8 0

3 years ago

The distance versus this plot for a particular object shows a quadratic relationship. Which column of distance data is possible

SOVA2 [1]

Answer:

Explanation:

In Column A, the pattern is 1², 2², 3², etc. So x(t) = t², which is quadratic.

In Column B, the pattern is 2*1, 2*2, 2*3, etc. So x(t) = 2t, which is linear.

In Column C, the pattern is 9*1, 9*2, 9*3, etc. So x(t) = 9t, which is linear.

In Column D, the pattern is 1/1, 1/2, 1/3, etc. So x(t) = 1/t, which is reciprocal.

In Column E, the pattern is 1/1², 1/2², 1/3², etc. So x(t) = 1/t², which is reciprocal.

5 0

3 years ago

Which of the following is a harmful effect of oil spills? (A)Migration of large schools of fish (B)Changes in sea level (C)Plant

kotegsom [21]

C is your answer to the question

4 0

2 years ago

Read 2 more answers

What is a boyfriend to you? And what age is appropriate to have one?

Sauron [17]

A boyfriend is someone who you find more than a friend. Someone who you have a deeper connection with. An age to have one really depends on the person and is mostly decided by parents. If the person is mature they may have one around 15 to 16+ years old. If the person is still "immature" or is not ready to have one, the age limit may be extended to 17+

7 0

2 years ago

Read 2 more answers

A car starts out traveling at 35 m/s. The car hits the brakes and decelerates at a rate of 3 m/s^2 for 5 seconds. What Distance

Ipatiy [6.2K]

Answer:

Time needed: 2.5 s
Distance covered: 31.3 m

Explanation:

I'll start with the distance covered while decelerating. Since you know that the initial speed of the car is 15.0 m/s, and that its final speed must by 10.0 m/s, you can use the known acceleration to determine the distance covered by

v2f=v2i−2⋅a⋅d

Isolate d on one side of the equation and solve by plugging your values

d=v2i−v2f2a

d=(15.02−10.02)m2s−22⋅2.0ms−2

d=31.3 m

To get the time needed to reach this speed, i.e. 10.0 m/s, you can use the following equation

vf=vi−a⋅t, which will get you

t=vi−vfa

t=(15.0−10.0)ms2.0ms2=2.5 s

6 0

3 years ago