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guajiro [1.7K]
2 years ago
10

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Physics
2 answers:
DIA [1.3K]2 years ago
8 0

It want let me but we can still be friends

eimsori [14]2 years ago
6 0

Answer:

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Explanation:

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Describe the differences and similarities between an electromotor and a generator.
Effectus [21]

Differences:

An electrical motor converts electrical energy into mechanical energy,where as a generator converts mechanical energy into electrical energy.

The principle of a electric motor if there is a change of the magnetic field across a conductor  electrons are forced to move in a direction perpendicular to the direction of the magnetic field,where as in a generator if a charge is moving in a magnetic field, a force acts on the charge in a direction perpendicular to both the velocity of the charge and the magnetic field.

similarities:

Both electric motor and generator work on the magnetic effects of electric current.

Both have the armatures to rotate the loop.

7 0
3 years ago
When a balloon is rubbed with human hair, the balloon acquires an excess static charge. This implies that some materials A) cond
Alexandra [31]

When a balloon is rubbed with human hair, the balloon acquires an excess static charge. This implies that some materials can give up electrons more readily than others.

Answer: Option C

<u>Explanation:</u>

We know that charges can neither be created nor be destroyed by law of conservation of charges. So when we rub two objects, it is natural to have a transfer of charges. But the charges which get transferred may be negligible in most of the cases leading to no significant observations.

But for some materials, like when we rubbed a balloon with human hair, we observed clouding of excess static charge on the balloon surface. This indicates that hair can easily give up electrons to balloon leading to clouding of excess static charge on it.

5 0
2 years ago
Teams a and b are in a tug of war challenge. Team a wins. What can be said about team a
bekas [8.4K]

Answer:

Team A used more force.

Explanation:

8 0
3 years ago
Read 2 more answers
CAN AIR MAKE SHADOWS?
Tems11 [23]

Answer:

No because you cannot see air so therefore it cannot make shadows

Explanation:

3 0
3 years ago
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A catcher in a baseball game stops a pitched ball that was originally moving at 44 m/s over a distance of 12.5 cm. the mass of t
eduard

Answer:

Force = -1161.6 Newton

Explanation:

Given the following data;

Initial velocity, u = 44m/s

Distance ,s = 12.5cm to m = 12.5/100 = 0.125m

Mass = 0.15kg

To find the acceleration;

We would use the third equation of motion;

V ² = U² + 2as

0² = 44² + 2*a*0.125

0 = 1936 + 0.25a

0.25a = -1936

a = -1936/0.25

Acceleration, a = -7744m/s2

Force = mass * acceleration

Substituting into the equation, we have;

Force = 0.15 * (-7744)

Force = -1161.6 Newton

The value of its force is negative because the glove decreases the velocity of the ball.

4 0
2 years ago
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