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3 years ago

Help please? thank you

Physics

1 answer:

Furkat [3]3 years ago

4 0

Hey!

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$\Large\boxed{\mathsf{D.~The~Ability~To~Do~Work}}$

In physics, energy is classified as doing some form of work. We classify energy as:

Chemical Energy
Thermal Energy
Potential Energy
Thermal Energy
Electrical Energy

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Hope This Helped! Good Luck!

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Can someone help me with this physics question? I don't know which answer is correct.

san4es73 [151]

3. Distance is a quantity that is always a vector.

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2 years ago

Two charges are repelling each other with a force magnitude F. If each charge doubled and the distance between the charges becam

eduard

Answer:

(1/4)F

Explanation:

Let F be the force on charges q and q' separated by a distance, d

F = kqq'/d²

Now, if q and q' are doubled, our new charges are 2q and 2q' respectively and, if the distnace is increased by four times, then our new distance is 4d. So our new force F' = k (2q)(2q')/(4d)²

= 4kqq'/16d²

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3 years ago

The surface temperature of a star can be estimated based on the star’s a. size. c. age. b. color. d. mass. Please select the bes

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The anwser is
b. color

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3 years ago

Read 2 more answers

27. (a) What magnification is produced by a 0.150 cm focal length microscope objective that is 0.155 cm from the object being vi

denpristay [2]

Answer:

magnification = - 30

overall magnification = -240

Explanation:

given data

Focal length of microscope objective f = 0.150 cm

Object distance from microscope objective do = 0.155 cm

magnification by eyepiece = 8 ×

to find out

What magnification is produced and overall magnification

solution

we consider here Image distance from microscope objective is = di

so that

Magnification produced by objective will be = - $\frac{di}{do}$

so we find here di by given equation that is

$\frac{1}{do} +\frac{1}{di} = \frac{1}{f}$ ..................1

$\frac{1}{di} = \frac{1}{0.150} - \frac{1}{0.155}$

di = 4.65 cm

so that magnification by object will be

magnification = - $\frac{di}{do}$

magnification = - $\frac{4.65}{0.155}$

magnification = - 30

and

overall magnification will be

overall magnification = magnification by objective × magnification by eyepiece ........................2

overall magnification = -30 × 8

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3 years ago

If you want to decrease the current created by a generator what can you do?

Rasek [7]

Answer:

To decrease the current;

1) Use fewer loops or number of turns

2) Use a lower speed of rotation of the coil in the magnetic field

3) Use a weaker magnetic

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According to Faraday's Law of induction, which is the basis of the electromagnetism, electromagnetic induction and therefore the basis of the electric generator, can be written as follows;

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3 years ago