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Tatiana [17]
3 years ago
14

Using the diagrams below, choose the Free Body Diagram that represents the following scenario.

Physics
1 answer:
Debora [2.8K]3 years ago
6 0

Answer: the is c

Explanation:

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31) The basic concept of how a simple motor works is explained by which statement?
Firdavs [7]

Answer:

When a wire that carries electrical current is placed in a magnetic field the wire experiences a force.

Explanation:

The electric motor is a device which convert electrical energy into mechanical energy  ie when current carrying conductor is placed in magnetic field it experience a force. Flemings left hand rule explains the direction of the current.

The electric motor works by attraction and repulsion of magnetic field.

So the option d explains basic concept of simple motor ie when when current carrying wire is placed in the magnetic field it experience magnetic repulsive force.

5 0
3 years ago
A block of wood is 4 cm wide, 5 cm long, and 10 cm high. It weighs 100 grams. Calculate its volume. Calculate its density. Will
77julia77 [94]

Answer:

V=200cm^3\\\\\rho =0.500g/cm^3

It will float.

Explanation:

Hello.

In this case, given the width, length and height, we can compute the volume as follows:

V=W*L*H\\\\V=4cm*5cm*10cm\\\\V=200cm^3

Moreover, since the density is computed via the division of the mass by the volume:

\rho =\frac{m}{V}

We obtain:

\rho =\frac{100g}{200cm^3} \\\\\rho =0.500g/cm^3

In such a way, since the solid has a lower density than the water, we infer it will float.

Best regards.

3 0
3 years ago
When designing an automobile, engineers think about engine and drivetrain design, and how best to maintain a certain level of fu
LenKa [72]
It would be manufactured 

3 0
3 years ago
A 3.0 \Omega Ω resistor is connected in parallel to a 6.0 \Omega Ω resistor, and the combination is connected in series with a 4
GarryVolchara [31]

Answer:

The power dissipated in the 3 Ω resistor is P= 5.3watts.

Explanation:

After combine the 3 and 6 Ω resistor in parallel, we have an 2 Ω and a 4 Ω resistor in series.

The resultating resistor is of Req=6Ω.

I= V/Req

I= 2A

the parallel resistors have a potential drop of Vparallel=4 volts.

I(3Ω) = Vparallel/R(3Ω)

I(3Ω)= 1.33A

P= I(3Ω)² * R(3Ω)

P= 5.3 Watts

7 0
3 years ago
A lever with an output arm of 0.8 meter has a mechanical advantage of 6. What is the length of the input
Novosadov [1.4K]
From the law of the lever: 

<span>mechanical advantage= input arm : output arm

input arm- a
output arm-b
</span>mechanical\ advantage= 6\\\\&#10;6=\frac{a}{0,8}\ \ |*0,8\\\\&#10;6*0,8=a\\\\&#10;a=4,8m&#10;&#10;
<span>Input arm is equal 4,8m</span>
4 0
3 years ago
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