Answer:
It’s 1
Explanation:
Potential difference =Work Done (in Joules)/ Total Charge(in Coulomb)
So Here
Potential difference =2J/2C
=1V
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Force, it is force because to be able to move anything you must use force.
Answer:
15.71 m/s
Explanation:
We are given;
Time; t = 0.2 s
Radius; r = 0.5 m
The circumference will give us the distance covered.
Formula for circumference is 2πr
Thus; Distance = 2πr = 2 × π × 0.5 = π
Linear speed = distance/time = π/0.2 = 15.71 m/s
Answer:
The answer is below!!
Explanation:
The skeletal system is made up of bones, ligaments and tendons. It shapes the body and protects organs. The skeletal system works with the muscular system to help the body move.
Hope I Helped!!
:)
Answer:
<em>10500 J</em>
Explanation:
<em>Heat:</em> Heat is defined as a form of energy that brings about the sensation of warmth. The S.I unit of heat is Joules (J)
Q = cm(T₂-T₁)..................................... Equation 1
Where Q = quantity of heat, c = specific heat capacity of water, m = mass of water, T₂ = final temperature, T₁ = initial temperature.
<em>Given: m = 100 g = (100/1000) kg = 0.1 kg, T₁ = 25 °C, T₂ = 50 °C.</em>
<em>Constant: c = 4200 J/kg.°C</em>
<em>Substituting these values into equation 1</em>
<em>Q = 0.1×4200×(50-25)</em>
<em>Q = 420×25</em>
<em>Q = 10500 J</em>
<em>Thus the amount of heat needed to raise the temperature of 100 g of water from 25 °C to 50 °C = 10500 J</em>
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