answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MA_775_DIABLO
3 months ago
8

State two advantages of a lead-acid accumulator over a leclanche cell​

Physics
1 answer:
kicyunya [3.2K]3 months ago
5 0

Respuesta:

Se pueden recargar.

Poseen una vida útil mayor.

Son reutilizables.

Explicación:

Las baterías de plomo-ácido y las pilas Leclanché son tipos de células electroquímicas.

Las pilas Leclanché son células primarias. Estas células producen reacciones químicas que generan corriente eléctrica de manera irreversible.

Por su parte, las baterías de plomo-ácido son células secundarias que permiten la reversibilidad de la corriente eléctrica generada.

Esto hace que las baterías de plomo-ácido sean reutilizables, con mayor durabilidad y un tiempo de vida más prolongado.

You might be interested in
A student solving a physics problem for the range of a projectile has obtained the expression r= v20sin(2θ)g where v0=37.2meter/
ValentinkaMS [3465]

The formula for range is:

R = \frac{v_o^2 sin2\theta}{g}

Given values are:

v_0=37.2m/s

where θ equals 14.1 degrees

g=9.80m/s^2

Using the equation above,

R = \frac{37.2^2 sin2*14.1}{9.80}

The calculated range is 66.7 meters.

Therefore, the range is approximately 66.1 meters.

5 0
3 months ago
Read 2 more answers
A major disturbance that caused the ecosystem to stabilize at a new equilibrium?
serg [3582]
The complete removal of all hawks allows for stabilization at a new equilibrium.
7 0
2 months ago
Because of your knowledge of physics, you have been hired as a consultant for a new James Bond movie, "Oldfinger". In one scene,
Softa [3030]

Answer:

v = [√(g/2h)]L

Explanation:

Let v represent the initial horizontal speed, and t denote the duration James Bond takes to leap off the ledge of length, L.

Thus, we derive vt = L, which leads to t = L/v

Additionally, considering that Bond begins with no horizontal velocity, he descends freely over the height, h; thus the equation y - y' = ut - 1/2gt² is applicable, where y = 0 (top of the cliff) and y' = -h, u = 0 (initial vertical speed), g = acceleration due to gravity = 9.8 m/s², and t = the time required to leap from the cliff = L/v.

By substituting these parameters into the equation, we obtain

y' - y = ut - 1/2gt²

-h - 0 = 0 × t - 1/2g(L/v)²

-h  = - 1/2gL²/v²

v² = gL²/2h

taking the square root of both sides gives us

v = [√(g/2h)]L

Therefore, James Bond's required minimum horizontal velocity is v = [√(g/2h)]L

8 0
2 months ago
The angle θ is slowly increased. Write an expression for the angle at which the block begins to move in terms of μs.
kicyunya [3294]

Answer:

tan \theta = \mu_s

Explanation:

Aby obiekt był w spoczynku na nachyleniu, wynikowa siła działająca na niego musi wynosić zero. Równanie sił działających w kierunku równoległym do nachylenia jest następujące:

mg sin \theta - \mu_s R =0 (1)

gdzie

mg sin \theta to składowa ciężaru równoległa do nachylenia, przy czym m oznacza masę obiektu, g oznacza przyspieszenie grawitacyjne, a \theta to kąt nachylenia

\mu_s R to siła tarcia, z \mu_s jako współczynnikiem tarcia oraz R jako reakcją normalną nachylenia

Równanie sił w kierunku prostopadłym do nachylenia to

R-mg cos \theta = 0

gdzie

R to reakcja normalna

mg cos \theta to składowa ciężaru prostopadła do nachylenia

Obliczając R,

R=mg cos \theta

I podstawiając do (1)

mg sin \theta - \mu_s mg cos \theta = 0

Rearanżując równanie,

sin \theta = \mu_s cos \theta\\\rightarrow tan \theta = \mu_s

To jest warunek, przy którym równowaga jest zachowana: gdy tangens kąta staje się większy niż wartość \mu_s, siła tarcia nie jest w stanie zrównoważyć składowej ciężaru równoległej do nachylenia, dlatego obiekt zaczyna zsuwać się w dół.

4 0
2 months ago
Other questions:
  • One consequence of Einstein's theory of special relativity is that mass is a form of energy. This mass-energy relationship is pe
    5·2 answers
  • Which trailer has more downward pressure where it attaches to the car?
    14·1 answer
  • A 0.2-kg steel ball is dropped straight down onto a hard, horizontal floor and bounces straight up. The ball's speed just before
    5·2 answers
  • Define kinetic energy and thermal energy. Describe what happens to each as the temperature of a substances increases.
    8·2 answers
  • What is the total flux φ that now passes through the cylindrical surface? enter a positive number if the net flux leaves the cyl
    15·1 answer
  • The posted speed limit on the road heading from your house to school is45 mi/h, which is about 20 m/s. If you live 8 km (8,000 m
    15·2 answers
  • A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg·m2. If the arms are pulled in so t
    12·1 answer
  • A bridge is made with segments of concrete 50 m long. If the linear expansion coefficient is 12  10–6 (°C)–1 , how much spacing
    5·1 answer
  • After getting a haircut, Joey’s barber spins him around in his barber’s chair 2 times per second. Is period or frequency given?
    7·1 answer
  • In this problem, you will calculate the location of the center of mass for the Earth-Moon system, and then you will calculate th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!