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Tema [17]
3 years ago
15

Which is equal to 4 hectometers?

Physics
1 answer:
Debora [2.8K]3 years ago
8 0

Answer:

2. 0.4 kilometers

Explanation:

Hope it helps

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(1) Differentiate EN with respect to r, and then set the resulting expression equal to zero, since the curve of EN versus r is a
Shtirlitz [24]

Answer: The continuation and the last part of the question is  (3) Determine the expression for E0 by substitution of r0 into the above equation for EN. What is the equation that represents the expression for E0?

Explanation:

The detailed steps and appropriate derivation and by differentiation is shown in the attachment.

The knowledge of differential calculus is applied.

5 0
3 years ago
Take a close look at the energy transfers and transformations shown in the above diagram. Which type of energy is transformed in
labwork [276]

Kinetic Energy

How to calculate

Kinetic energy is given by K.E.

\\ \sf\longmapsto K.E=\dfrac{1}{2}mv^2

Where

  • m is denoted to mass
  • v is denoted to velocity
4 0
3 years ago
The energy of an electromagnetic wave changes proportionally to which
ozzi

Answer:

D. Frequency

Explanation:

The energy of an  electromagnetic wave is proportional to frequency, mathematically it is expressed as;

E ∝ f

E = hf

where;

h is Planck's constant = 6.626 x 10⁻³⁴ Js

The equation above can also be expanded to;

E = hf = h \frac{c}{\lambda}

where;

c is speed of light = 3 x 10⁸ m/s

λ is the wavelength of the electromagnetic wave

Since the speed of light is constant, we can conclude that the energy of the electromagnetic wave is directly proportional to its frequency and inversely proportional to its wavelength.

Therefore, the correct option for direct proportionality is FREQUENCY

8 0
3 years ago
Describe a scenario when you could use energy but not do any work.
Harlamova29_29 [7]

Answer:

When you don't move, you still use energy. This energy is called potential energy, or, stored energy.

When you don't move or do work, you can use energy.

4 0
3 years ago
In the following description, QUOTE the portion that addresses weather in the area.
olga nikolaevna [1]

Answer:

Portland normally had rainy, but mild winters. Yesterday it rained 0.75 inches in Portland.

Explanation:

This talks about the weather

4 0
3 years ago
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