How does the acceleration due to gravity relate to the mass of an object and the distance from Earth?

1 answer:

6 0

The object's mass is irrelevant.
The acceleration due to Earth's gravity is inversely proportional to the square of the object's distance from the center of the Earth.

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Discuss the advantages and disadvantages of series circuits compared to parallel circuits. Give an example of where each type of

Murljashka [212]

Advantage of series circuit :

1. allows all the components in the circuit to have same current flowing through them.

2. one switch is enough to turn off all the components in the circuit in series.

3. make the circuit small by using smaller length of wire.

Disadvantages of series circuit :

1. If one component becomes defective , it does not allow other components to operate, since they share same current.

2. all components can not have same voltage across them.

5 0

3 years ago

A standard 12 V car battery has an ampere-hour rating of 40 Ah, whereas a heavy-duty battery has a rating of 60 Ah. How would yo

stiv31 [10]

Answer:

Explanation:

Ah is a unit of charge .

A battery with 12 V and charge capacity of 40 Ah will have energy content

= volt x charge

volt = 12 V

Charge = 40 Ah

= 40 x 60 x 60 A.s

= 144000 coulomb

energy content = 12 x 144000

= 1728000 J

energy content of heavy duty battery

= 12 x 60 x 60 x 60

= 2592000 J

Ratio = 1728000 / 2592000

= 2 / 3

Current can not be compared as current depends upon the resistance of appliance used . As resistance of appliance is unknown , current can not be compared.

3 0

4 years ago

A 3.10-mm-long, 430 kgkg steel beam extends horizontally from the point where it has been bolted to the framework of a new build

Alex17521 [72]

Answer:

Explanation:

Given that,

The length of the beam L = 3.10m

The mass of the steam beam $m_1$ = 430kg