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Licemer1 [7]
3 years ago
12

What observations tell you that a car is accelerating

Physics
1 answer:
professor190 [17]3 years ago
8 0
When the car moves and makes a sound that is louder that when the car is just sitting there
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The rotor in a certain electric motor is a flat, rectangular coil with 80 turns of wire and dimensions 2.50 cm by 4.00 cm . The
wel

The Peak power output of the motor is 0.452 Watt

To find the peak power output, the given values are,

No .of turns of the wire = 80

Dimensions is given as, 2.50 cm by 4.00 cm

Magnetic field = 0.800 T.

current = 10 mA.

Angular speed = 3.60 ×10³ rev/min

<h3>What is Peak power output?</h3>
  • Peak power output can be also known as Peak work rate.
  • If the output was greatest or the work production was very high in the given amount of time then it is known as Peak power output.
  • This peak power is depends on the force, distance and time.

The formula for peak power output,

                     Pout = τ * ω

where,

Pout - output power  watts (W),

τ - torque   Newton meters (Nm),

ω - angular speed  radians per second (rad/s).

Calculating angular speed as here rotational speed of the motor in rpm is given:

                      ω = rpm * 2π / 60

where,

ω – angular speed, radians per second (rad/s),

rpm – rotational speed in revolutions per minute,

π – mathematical constant pi (3.14),

60 – number of seconds in a minute.

So, the formula is,

Peak power output = τ *rpm * 2π / 60

τ = NIAB sinθ Nm

  = 80×10×10⁻³×0.0250×0.040×0.800× Sin 90°

  = 2 × 6.4 × 10 ⁻⁴

  = 1.2 × 10⁻⁴ Nm.

Peak power output = 1.2 × 10⁻⁴ ×3.60×10³ × 2π / 60

= 0.452 Watt

Thus, the peak power output is 0.452 Watt.

Learn more about Peak power output,

brainly.com/question/13937812

#SPJ4

7 0
1 year ago
Please tell me if if these statements are true or false
alex41 [277]

Answer:

Im not sure if im right but this is what i got( i have no clue how to explain im sorry)

1. False

2. False

3. True

4. False

6 0
2 years ago
Read 2 more answers
You drop some ice and notice a piece appears to slide across the kitchen floor without slowing down (until it hits the wall). wh
SVETLANKA909090 [29]
D.inertia ....................
8 0
2 years ago
Read 2 more answers
A toy cart at the end of a string 0.70 m long moves in a circle on a table. The cart has a mass of 2.0 kg and the string has a b
luda_lava [24]
Given that the mass of the toy cart is 2.0 kg and and the acceleration is unknown, the normal formula would be a=f/m where a is acceleration, f is force and m is mass but the string's breaking strength is 40n so I think the formula in this case will be f is greater than m*a
40 is greater than 2a
40 is greater than 2a
40/2 is greater than 2a/2
20m/s² is greater than a 
Therefore the maximum speed the toy cart should have should be less than 20m/s²
8 0
3 years ago
1
shepuryov [24]

Answer:

200000J

Explanation:

Here the 1000N÷m is given. It is the torque. Now torque is a type of force created when an object turns.so it is a force.

100kg crate is the mass of the object.

2m is the height.

So the equation to measure gravitational pot. Enrg. Is = mass x force x height

So 1000x100x2 gives us 200000J.

Thank you

If you have any questions please feel free to contact me.

I will contact u through the comments.

❤️❤️With love,

Joel X grader

6 0
3 years ago
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