As a safety engineer, you must evaluate the practice of storing flammable conducting liquids in nonconducting containers. The company supplying a certain liquid has been using a squat, cylindrical plastic container of radius r=0.20 m and filling it to height h=10 cm, which is not the container’s full interior height. Your investigation reveals that during handling at the company, the exterior surface of the container commonly acquires a negative charge density of magnitude 2.0 mC/m2 (approximately uniform). Because the liquid is a conducting material, the charge on the container induces charge separation within the liquid.a. How much negative charge is induced in the center of the liquid’s bulk? ***Note that the charge is on the bottom of the cylinder as well as the sides, but only up to the height of the liquid.***b. Assume the capacitance of the central portion of the liquid relative to ground is 35 pF. What is the potential energy associated with the negative charge in that effective capacitor?c. If a spark occurs between the ground and the central portion of the liquid (through the venting port), the potential energy can be fed into the spark. The minimum spark energy needed to ignite the liquid is 10 mJ. In this situation, can a spark ignite the liquid? Why?

Explanation:

A helicopter travels 17.5m south in 40 seconds. Determine your speed in m / s and km / h

Given that,

A helicopter travels a distance of

d = 17.5m

And it takes a 40seconds to travel the distance

then, time taken = 40seconds

t = 40 seconds

Speed is the rate at which distance is travelled.

Speed can be calculated at the distance covered over the time taken.

Speed = distance / Time taken

S= d / t

S= 17.5 / 40

S= 0.4375 m/s

To km/hr

We know that,

1 km = 1000m

1 hr = 60minutes

1minutes = 60seconds

Then, 1 hr = 60mins × 60secs/mins

1hr = 3600seconds

Then,

S= 0.4375m/s × (1km / 1000m) × (3600s / 1hr)

Then, s= 1.575 km/hr

Check attachment for better understanding of the mathematical expression

So, the speed is

In m/s: S= 0.4375 m/s

In km/hr: s= 1.575 km/hr

Dado que,

Un helicóptero recorre una distancia de

d = 17.5m

Y lleva unos 40 segundos recorrer la distancia

entonces, tiempo tomado = 40 segundos

t = 40 segundos

La velocidad es la velocidad a la que se recorre la distancia.

La velocidad se puede calcular a la distancia recorrida en el tiempo necesario.

Velocidad = distancia / tiempo necesario

S = d / t

S = 17.5 / 40

S = 0,4375 m / s

In spanish

A km / h

Lo sabemos,

1 km = 1000m

1 hora = 60 minutos

1 minuto = 60 segundos

Entonces, 1 hora = 60 minutos × 60 segundos / minuto

1 hora = 3600 segundos

Entonces,

S = 0,4375 m / s × (1 km / 1000 m) × (3600 s / 1 hora)

Entonces, s = 1.575 km / h

Verifique el archivo adjunto para una mejor comprensión de la expresión matemática

Entonces, la velocidad es

En m / s: S = 0.4375 m / s

En km / h: s = 1.575 km /