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3 years ago

A thermionic tube with only a cathode and an anode is called?

2 answers:

7 0

A vacuum tube consists of cathode (also called as filament), anode (also called as plate), and electrode (also called as grid). Cathode is an electron emitter that emits the free electrons whereas anode is an electron collector that collects the free electrons.
I hope this helps.

Svetach [21]3 years ago

3 0

The correct answer is diode.

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An atom of element A has 39 protons. What would the element’s atomic number be?

Maksim231197 [3]

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4 years ago

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The design of a 60.0 cm industrial turntable requires that it has a kinetic energy of 0.250 j when turning at 45.0 rpm. What mus

Aneli [31]

Answer:

The moment of inertia of the turntable about the rotation axis is 0.0225 kg.m²

Explanation:

Given;

radius of the turnable, r = 60 cm = 0.6 m

rotational kinetic energy, E = 0.25 J

angular speed of the turnable, ω = 45 rpm

The rotational kinetic energy is given as;

$E_{rot} = \frac{1}{2} I \omega ^2$

where;

I is the moment of inertia about the axis of rotation

ω is the angular speed in rad/s

$\omega = 45 \frac{rev}{\min} \times \frac{2 \pi \ rad}{1 \ rev} \times \frac{1 \ \min}{60 \ s} \\\\\omega = 4.712 \ rad/s$

$E = \frac{1}{2} I \omega ^2\\\\I = \frac{2E}{\omega ^2} \\\\I = \frac{2 \ \times \ 0.25}{(4.712)^2} \\\\I = 0.0225 \ kg.m^2$

Therefore, the moment of inertia of the turntable about the rotation axis is 0.0225 kg.m²

5 0

3 years ago

Una mujer de 65 kg, se balancea sobre uno de los tacones de sus zapatos. Si el tacón es circular con un radio de 0,5 cm, ¿qué pr

goldenfox [79]

Explicacion

m = 65 kg

g = 10 m/s²

r = 0.5 cm (1m / 100 cm) = 0.05 m

A = π r² = π (0.05 m)² = 0.00785 m²

F =W = m g = 65 kg(10 m/s²) = 650 N

P = F/A = 650 N / 0.00785 m² = 82802.54 N/m²

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3 years ago

I need help figuring out the science question!!

Aleonysh [2.5K]

Answer:

Explanation:

Speed is the distance covered over the time taken to do so.

s = d/t = 45 m / 3 s = 15 m/s

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3 years ago

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Anastaziya [24]

Picking up a box, pushing a box along the ground, and pulling a box along the ground (B, C, and D) definitely involve work being done.

If a person CARRIES a box from one place to another, AND keeps it at the same height during the entire carry, then no work is done. ( A )

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4 years ago

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A thermionic tube with only a cathode and an anode is called?​

A thermionic tube with only a cathode and an anode is called?