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Art [367]
3 years ago
6

This is a machine that converts electrical energy into mechanical energy.

Physics
1 answer:
Yuri [45]3 years ago
8 0
<h2>Answer:</h2>

Motor

<h2>Explanation:</h2>

A motor is a machine that converts electrical energy into mechanical energy. In motors, electric energy is converted into mechanic energy when a magnetic torque acts on a conductor that carries a current. There are different types of motors like DC and AC motors. The moving part of a motor is called the rotor while the stationary part is called stator

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A piece of wood 400N in weight and 50cm X 30cm X 20cm in size lies on 50cm X 20cm face. Calculate the pressure exerted by it.
Serga [27]

Answer:

P = 4000 [Pa]

Explanation:

Pressure is defined as the relationship between Force and the area where the body rests.

The support area is equal to:

A=50*20=1000[cm^{2} ]

But we must convert from square centimeters to square meters.

1000[cm^{2}]*\frac{1^{2}m^{2}  }{100^{2}m^{2}  }=0.1[m^{2} ]

And the pressure is:

P=\frac{F}{A} \\P=400/0.1\\P=4000[N/m^{2} ]or 4000[Pa]

6 0
3 years ago
/3
nydimaria [60]

Answer:

130m/s^2 and 1.22s

Explanation:

From V = u+at

Where V, u, a, and t are the final velocity, initial velocity, acceleration and time respectively.

v = 6.75m/s

u = 3.5m/s

t = 0.250secs

a = ?

V = u+at

6.75= 3.5+a(0.250)

6.75-3.5 = 0.250a

3.25=0.250a

Divide both sides by 0.250

3.25/0.250= 0.250a/0.250

a = 130m/s^2

The acceleration of the will be 130 meter per second

Question 2

Speed = distance/time

Given that speed= 4.25m/s

Distance = 5.2m and time = ?

4.25m/s = 5.2m/t

Cross multiply

4.25×t = 5.2

Make t the subject by dividing both sides by 4.25

4.25t/4.25 = 5.2/4.25

t = 1.22s

Hence the time taken will be 1.22 seconds

6 0
3 years ago
...hhheeelppppppppppp meeeee​
Mnenie [13.5K]

Answer:

RESISTANCE

Explanation:

A multimeter or multitester is a measuring instrument that can measure multiple electrical properties. A typical multimeter can measure voltage, resistance, and current, in which case it is also known as a volt-ohm-milliammeter.

7 0
3 years ago
What the difference between monatomic and colloidal gold?
Gre4nikov [31]
The answer is that they are altogether different. In a colloid, there is no necessity that the scattered gold be as disengaged iotas. Colloidal gold is as nanoparticles, each having numerous iotas of gold. Note that gold is normally monoatomic, and does not tie to itself synthetically, not at all like oxygen, which ties in sets to accomplish lively soundness.
6 0
3 years ago
Which rock is made mostly of dark, fine-grained silicate minerals, chiefly plagioclase feldspar and pyroxene, and magnetite?
Dafna1 [17]

A dark-colored (igneous rock,) commonly extrusive from volcanic eruptions and composed primarily of the minerals of calcic plagioclase and pyroxene, and sometimes olivine. Basalt is the fine-grained equivalent of gabbro.

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4 years ago
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