B.) A group of cells working together. If it were D.), the question would have had to be A cell is made up of...
You are currently converting Distance and Length units from Centimeters to Feet 321 Centimeters (cm) = 10.5315 Feet (ft) This is a hard one but see if this helps if not let me now and i can try again..
Highlighter, color coding sections that go together, flash cards, relaxing with someone while they read out questions ( this will help with testing anxiety too). If you get distracted easily use games to study or small sayings instead of the usual white and black sheet of paper.
To solve the problem it is necessary to apply the equations related to the conservation of both <em>kinetic of rolling objects</em> and potential energy and the moment of inertia.
The net height from the point where it begins to roll with an inclination of 30 degrees would be
In the case of Inertia would be given by
In general, given an object of mass m, an effective radius k can be defined for an axis through its center of mass, with such a value that its moment of inertia is
Replacing in Energy conservation Equation we have that
Potential Energy = Kinetic Energy of Rolling Object
Therefore the correct answer is C.
Answer:
Explanation:
q₁ = 8 x 10⁻⁶ C , q₂ = 3.5 x 10⁻⁶ C , q₃ = -2.5 x 10⁻⁶ C
Force between charge = 9 x 10⁹ x q₁ q₂ / d²
Force on q₁ due to q₂
= 9 x 10⁹ x 8 x 10⁻⁶ x 3.5 x 10⁻⁶ /( .10 )²
= 25.2 N . This force will be negative as it will point towards left ( q₂ will repel q₁ )
Force on q₁ due to q₃
= 9 x 10⁹ x 8 x 10⁻⁶ x 2.5 x 10⁻⁶ /( .15 )²
= 8 N . This force will be negative as it will point towards left ( q₃ will attract q₁ )
Net force = 25.2 N - 8 N
= 17.2 N .
