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3 years ago

In which circuit will the bulb or bulbs glow brightest?

Physics

1 answer:

Leni [432]3 years ago

6 0

Answer:

B - a simple circuit with one bulb and two batteries.

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Why Is It Hard For Electrons To Move Through An Insulator

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An insulator is not a good source for heat or electricity to move through. Wood is an example of an insulator. The opposite of insulator is conductor. An example of a conductor is metal.

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3 years ago

Earth's surface receives about twice as much energy from the atmosphere than from the sun as a result of ____.

Oxana [17]

I think the answer is “greenhouse effect”

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4 years ago

A car speeds up from 3 m/s to 10 m/s in 8 s. How far does the car travel while doing this? 2. A

yarga [219]

Initial velocity=u=3m/s

Final velocity=v=10m/s

Time=t=8s

$\boxed{\sf Acceleration=\dfrac{v-u}{t}}$

$\\ \sf\longmapsto Acceleration=\dfrac{10-3}{8}$

$\\ \sf\longmapsto Acceleration=\dfrac{7}{8}$

$\\ \sf\longmapsto Acceleration=0.8m/s^2$

Distance =s

Using second equation of motion

$\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2$

$\\ \sf\longmapsto s=3(8)+\dfrac{1}{2}(0.8)(8)^2$

$\\ \sf\longmapsto s=24+0.4(64)$

$\\ \sf\longmapsto s=24+25.6$

$\\ \sf\longmapsto s=49.6m$

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3 years ago

2. Two people, one on Earth and the other on the Moon, try and lift 200 kg blocks. Which person

Art [367]

Answer:

The person on Earth will have to exert more force to lift their block

Explanation:

The mass of the blocks to be lifted = 200 kg

The location of the first person = On Earth

The location of the second person = On the Moon

The force a person will have to exert to lift the block = The weight of the block = The gravitational force, F, on the block which is given as follows;

$F = \dfrac{G \times M_1}{R^2} \times m_2$

Where;

$\dfrac{G \times M_1}{R^2}$ = The acceleration due to gravity on the Earth or the Moon, depending on the location of the block

m₂ = The mass of the block

Therefore, given that the acceleration due to gravity on the Earth is larger than the acceleration due to gravity on the Moon, the weight of the block on the Earth is larger than the weight of the block on the Moon, and the person on Earth have to exert more force to lift the heavier weight of the block on Earth than the person on the Moon will have to exert to lift the same block as the block has a lower weight on the Moon due to lower acceleration due to gravity on the Moon.

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3 years ago

Any fracture or system of fractures along which Earth moves is known as a

Alexxx [7]

Any fracture or system of fractures along which Earth moves is known as a fault.

Answer: b. fault.

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3 years ago