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inysia [295]
3 years ago
13

Describe how an electromagnet can make a motor run.

Physics
1 answer:
irina [24]3 years ago
6 0
An electric motor converts electrical energy into physical movement. Electric motors generate magnetic fields with electric current through a coil. The magnetic field then causes a force with a magnet that causes movement or spinning that runs the motor.
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You push against a steamer trunk with a force of 750 N at an angle of 25° with the horizontal . The trunk is on a flat floor and
djverab [1.8K]
This means that the horizontal force is 750sin(25°). To be able to move the truck, force applied must be greater than static friction, which equals to its coefficient (0.77) x normal contact force (= weight)

Hence, 750sin(25°) = 0.77mg. m = 750sin(25°)/(0.77g)
3 0
3 years ago
If the fan blades rattle while the fan is turning, you can stop the noise by
daser333 [38]
I beleve the answer is D).
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4 years ago
The pressure of liquid varies as per it's depth.
irga5000 [103]

Answer: The pressure in a liquid is different at different depths. Pressure increases as the depth increases. The pressure in a liquid is due to the weight of the column of water above. The greater pressure at the bottom would give a greater 'force per unit area' on the wall.

Explanation:

6 0
3 years ago
What existed originally that became the deposits of fossil fuels?
posledela

Answer:

vast amounts of plant life that existed before dinosouars. Fossil fuels are fuels such as natural gas, coal, petrol, et cetera which are formed naturally by the decomposition of remains of dead plants and animals.

Explanation:

6 0
3 years ago
If an object force of 50 N is used to move an object a distance of 20 m, what distance must the object be moved if the input for
steposvetlana [31]

Answer:

\ d_{out} = 100 \ m.

Explanation:

Given data:

F_{in} = 50 \ \rm N

F_{out} = 10 \ \rm N

d_{in} = 20 \ m

Let the distance traveled by the object in the second case be d_{out}.

In the given problem, work done by the forces are same in both the cases.

Thus,

W_{in} = W_{out}

F_{in}.d_{in} = F_{out}.d_{out}

\Rightarrow \ d_{out} = \frac{F_{in}.d_{in}}{F_{out}}

\ d_{out} = \frac{50 \times 20}{10}

\ d_{out} = 100 \ m.

5 0
3 years ago
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