Question

A catapult on an aircraft carrier is capable of accelerating a plane from 0 to 56.0 m/s in a time of 2.5 seconds. find the average net force that the catapult exerts on a 13 300 kg jet

Answer 1

Answer:

Given

An electric bulb rated at 100 W is connected to the mains supply

Find the amount of electrical energy consumed by the bulb in 30 days if the bulb is switched on for 8 hours daily

To Find

Electrical Energy

Solution

We know that

→ E = P × t

Here

E = Electrical Energy

P = Power

t = Time

According to the question

We are asked to find electrical energy

Therefore

We must find "E"

Given that

An electric bulb rated at 100 W is connected to the mains supply

Find the amount of electrical energy consumed by the bulb in 30 days if the bulb is switched on for 8 hours daily

Hence

P = 100 W

t = 8 × 30 h = 240 h

Substituting the values

We get

→ E = 100 × 240 W h

→ E = 24000 W h

Therefore

→ E = 24 kW h

Hence

Electrical Energy = 24 kW h