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Kazeer [188]
3 years ago
8

According to modern atomic theory, where are electrons most likely to be found?

Physics
2 answers:
Olin [163]3 years ago
7 0
I’ve had a question like this and i put c
Burka [1]3 years ago
4 0

Answer:

Option D - atomic orbitals.

Explanation:

According to modern theory, the region where an electron is most likely to be found is called an atomic orbital.

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A person on a bike (m=90kg) is traveling 4m/s at the top of a 2m hill. What is his/her kinetic energy?
guajiro [1.7K]

Answer:

Ek = 720J

Explanation:

Ek = 0.5mv^2

Ek = 0.5(90)(4)^2

Ek = 720J

6 0
3 years ago
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Jack is wearing a red shirt the shirt is illuminated with white light. The shirt absorbs every color but.....?
crimeas [40]

Answer:

the answer is red

Explanation:

the answer is red

4 0
3 years ago
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The United States and South Korean soccer teams are playing in the first round of the World Cup. An American kicks the ball, giv
garik1379 [7]

Answer:

Vf = 3.67 [m/s]

Explanation:

To solve this problem we must use the following equation of kinematics.

v_{f} ^{2} =v_{i} ^{2} -(2*a*x)

where:

Vf = final velocity [m/s]

Vi = initial velocity = 4.3 [m/s]

a = acceleration or desacceleration = 0.5 [m/s²]

x = distance = 5 [m]

Note: The negative sign in the above equation means that the velocity of the ball is decreasing (desacceleration).

Now replacing:

Vf² = (4.3)² - (2*0.5*5)

Vf² = 18.49 - 5

Vf² = 13.49

using the square root, we have.

Vf = 3.67 [m/s]

8 0
3 years ago
You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching e
Degger [83]

Answer:

i) C decreases

ii) Q remains constant

iii) E remains constant

iv) ΔV increases

Explanation:

i)

We know, capacitance is given by:

C=\frac{\epsilon_0.A}{d}

\therefore C\propto \frac{1}{d}

<em>In this case as the distance between the plates increases the capacitance decreases while area and permittivity of free space remains constant.</em>

ii)

As the amount of charge has nothing to do with the plate separation in case of an open circuit hence the charge Q remains constant.

iii)

Electric field between the plates is given as:

E=\frac{\sigma}{\epsilon_0}

where:

charge density, \sigma=\frac{Q}{A}

<em>As we know that distance of plate separation cannot affect area of the plate. Charge Q and permittivity are also not affected by it, so E remains constant.</em>

iv)

  • From the basic definition of voltage we know that it is the work done per unit charge to move it through a distance.
  • Here we increase the distance so the work done per unit charge increases.
6 0
3 years ago
Question #4
olga2289 [7]

Answer:

Distance 5 km, Displacement 3 km east

Explanation:

6 0
4 years ago
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