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OLEGan [10]
3 years ago
12

Imagine you’re an engineer making a string of battery powered holiday lights. If a bulb burns out current cannot flow through th

at bulb any linger (like if the wire at the bulb had been cut) . Figure out how to hook up 2 light bulbs and a battery so that when one bulb burns out (or disconnected) the other stays lit.
Physics
1 answer:
Anit [1.1K]3 years ago
4 0

Answer:

The 2 light bulbs can be connected in parallel to each other to avoid disconnection when one bulb burns out.

Explanation:

The parallel connection is required not series. A parallel connection is the connection of electronic components (e.g bulbs, LED, resistors, capacitors etc) in such a way that the same voltage is supplied across the ends of the components.  While in a series connection, the components are connected to each other end-to-end.

As regard the question, parallel connection ensures that the brightness any of the bulbs is not affected with respect to the other bulbs. And other bulbs continue to function when any burns out. The 2 light bulbs should be connected in parallel to the baterry to avoid disconnection of all the bulbs.

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A 5000 kg open train car is rolling on frictionless rails at 22 m/s when it starts pouring rain. A few minutes later, the car’s
Phantasy [73]

Answer:

500 kg

Explanation:

It is given that,

The mass of a open train car, M = 5000 kg

Speed of open train car, V = 22 m/s

A few minutes later, the car’s speed is 20 m/s

We need to find the mass of water collected in the car. It is based on the conservation of momentum as follows :

initial momentum = final momentum

Let m is final mass

MV=mv

m=\dfrac{MV}{v}\\\\m=\dfrac{5000\times 22}{20}\\\\=5500\ kg

Water collected = After mass of train - before mass of train

= 5500 - 5000

= 500 kg

So, 500 kg of water has collected in the car.

3 0
3 years ago
A bar magnet is held in place while another bar magnet is placed near it. The second bar magnet spins around and
Vinil7 [7]

Answer:

o

Explanation:

the increase energy stored in thw system is proportional to the decrease in kinetic energy

4 0
3 years ago
During Cardiovascular Excercise, what do the heart and lungs do?
skad [1K]
They circulate blood and oxygen throughout your body
6 0
3 years ago
What colors are in a 24 pack of crayola crayons?
Xelga [282]
Blue puprle white gold organs yellow red gray brown green pink black tan light blue
3 0
3 years ago
A 10 kg bear is running to the right at 10 m/s. He crashes into another 10 kg bear running to the left at -5 m/s. They collide a
faust18 [17]

Answer:

<em>Total momentum is conserved</em>

Explanation:

<u>Conservation of Momentum </u>

The momentum is a physical magnitude that measures the product of the object's velocity by its mass. The total momentum of a system is the sum of all its components' individual momentums. The two-bear system starts with a total moment of  

p=m_1v_1+m_2v_2=(10)(10)+(10)(-50)=50\ kg.m/s

When both bears stick together, the total mass is 20 kg, and the new momentum is

p'=(20)(2.5)=50 \ kg.m/s

We have assumed both bears move to the right after the collision. In this situation, the total momentum is conserved

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3 years ago
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