2 years ago

What object in the solar system is always one foci

1 answer:

7 0

<span> The Sun if the object in the solar system that is always one foci. It is also the source of radiation energy which radiates throughout the system. Sun is the only natural source of energy that has helped the growth of life on the planet earth. Without sunlight, life would never have begun on earth.</span>

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. If force (F), work (W) and velocity (v) are taken as fundamental quantities.

alex41 [277]

Answer:

∴ [T]=[WF−1V−1]

Hope this answer is right!!

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2 years ago

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A car accelerates from 10 km/hr to 50 km/hr in 8 seconds. What is the acceleration?

nikklg [1K]

The answer is 5 km/hr

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A 55.0-g piece of copper wire is heated, and the temperature of the wire changes from 19.0°C to 86.0°C. The amount of heat absor

Alinara [238K]

The specific heat of a metal or any element or compound can be determined using the formula Cp = delta H / delta T / mass. delta pertains to change. That is change in enthalpy and change in temperature. From the given data, Cp is equal to 343 cal per (86-19) c per 55 grams. This is equal to 0.093 cal / g deg. Celsius

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2 years ago

In a thundercloud there may be an electric charge of +40 C near the top of the cloud and -40 C near the bottom of the cloud. The

Ratling [72]

Answer:

Electric force, $F=-3.59\times 10^6\ N$

Explanation:

Given that,

Electric charge 1, $q_1=+40\ C$

Electric charge 2, $q_2=-40\ C$

Distance, $d=2\ km=2\times 10^3\ m$

To find,

The electric force between these two sets of charges.

Solution,

There exists a force between two electric charges and this force is called electrostatic force. It is equal to the product of electric charged divided by square of distance between them.

$F=k\dfrac{q_1q_2}{d^2}$