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lord [1]
2 years ago
8

1. The difference between a sensor and a transducer is that in a transducer: A. no calibration is required for it to be used B.

the measured variable can be converted to an alternative form C. electrical power is always needed D. no electrical power is required at any time 2. A _________ is a safeguard mechanism for coordinating the activities of two or more devices and preventing one device from interfering with the operation of others. A. interrupt B. feedforward control C. adaptive control D. interlock 3. An actuator can also be classified as a transducer depending on whether the physical output has a relationship with the input signal. A. true B. false 4. A common design issue to consider when selecting a sensor for automation is: A. whether it is PNP or NPN B. power required for operation C. robustness D. all of the above. 11. An optical encoder is used to sense speed and position of a rotating shaft in servomotor driven worktable for feedback control. This type of control system uses an OPEN LOOP control system. A. true B. false 4. Which of the following is a good reason for automating a plant
Physics
1 answer:
Rom4ik [11]2 years ago
8 0

Answer:

Explanation:

1

The difference between a sensor and a transducer is that in a transducer no electrical power is required at any time

2.

An interlock is a safeguard mechanism for coordinating the activities of two or more devices and preventing one device from interfering with the operation of others.

3

An actuator can also be classified as a transducer depending on whether the physical output has a relationship with the input signal......True

4

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Two boxers are fighting. Boxer 1 throws his 5 kg fist at boxer 2 with a speed of 9 m/s.
Sladkaya [172]

Answer:

0.001 s

Explanation:

The force applied on an object is equal to the rate of change of momentum of the object:

F=\frac{\Delta p}{\Delta t}

where

F is the force applied

\Delta p is the change in momentum

\Delta t is the time interval

The change in momentum can be written as

\Delta p=m(v-u)

where

m is the mass

v is the final velocity

u is the initial velocity

So the original equation can be written as

F=\frac{m(v-u)}{\Delta t}

In this problem:

m = 5 kg is the mass of the fist

u = 9 m/s is the initial velocity

v = 0 is the final velocity

F = -45,000 N is the force applied (negative because its direction is opposite to the motion)

Therefore, we can re-arrange the equation to solve for the time:

\Delta t=\frac{m(v-u)}{F}=\frac{(5)(0-9)}{-45,000}=0.001 s

4 0
3 years ago
How tall would a tower need to be if the period of a pendulum were 30. seconds
Virty [35]
We use the following expression

T = 2*pi *sqrt(l/g)

Where T is the period of the pendulum

l is the length of the pendulum

and g the acceleration of gravity

We solve for l

l = [T/2*pi]² *g = [30s/2*pi]²* 9.8 [m/s²] = 223.413 m

The tower would need to be at least 223.413 m high
4 0
3 years ago
What exited kaveh pahlevan about his work?
USPshnik [31]

Answer:

i dont know

Explanation:

i dont know since you didn't provide something to base off of

7 0
2 years ago
What affects the amount of potential energy stored in the magnetic field when a magnet is moved against a magnetic force?
LekaFEV [45]

Answer: Strength of magnet and distance from magnetic material

Explanation:

The potential energy of a magnet is determined by the strength of the magnet and the distance between a magnet and another magnet or a magnetic material. Magnetic materials are materials that would be attracted when brought close to a magnet, example of magnetic materials are most metals.

8 0
2 years ago
A helium atom (mass 4.0 u) moving at 598 m/s to the right collides with an oxygen molecule (mass 32 u) moving in the same direct
labwork [276]

Answer:

Speed of the helium after collision = 246 m/s

Explanation:

Given that

Mass of helium ,m₁ = 4 u

u₁=598 m/s

Mass of oxygen ,m₂ = 32 u

u₂  = 401 m/s

v₂ =445 m/s

Given that initially both are moving in the same direction and lets take they are moving in the right direction.

Speed of the helium after collision = v₁

There is no any external force on the masses that is why the linear momentum will be conserve.

Initial linear momentum = Final linear momentum

P = m v

m₁u₁+m₂u₂ = m₁v₁+m₂v₂

598 x 4 + 32 x 401 = 4 x v₁+ 32 x 445

v₁ = 246 m/s

Speed of the helium after collision = 246 m/s

6 0
2 years ago
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