The correct answer is Objects W and Y have balanced forces, and objects X and Z have unbalanced forces.
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Answer:
The period of an oscillator in simple does not depend on gravity as one can see from measurement of a horizontal spring.
Let w be angular frequencu (omega)
w = (k / m)^1/2 for an object in SHM
w2 = (4 k / 3 m)^1/2 = 1.15 (k / m)^1/2 = 1.15 w
The angular frequency for the new oscillator is 1.15 that of the original
w = 2 pi * f = 2 pi / T
the period T = 2 pi / w = 2.8 s (given)
T2 / T = w / w2 = 1 / 1.15 = .87
T2 = .87 * 2.8 = 2.43 s
Answer:
The car C has KE = 100, PE = 0
Explanation:
The principle of conservation of energy states that although energy can be transformed from one form to another, the total energy of the given system remains unchanged.
The energy that a body possesses due to its motion or position is known as mechanical energy. There are two kinds of mechanical energy: kinetic energy, KE and potential energy, PE.
Kinetic energy is the energy that a body possesses due to its motion.
Potential energy is the energy a body possesses due to its position.
From the principle of conservation of energy, kinetic energy can be transformed into potential energy and vice versa, but in all cases the energy is conserved or constant.
In the diagram above, the cars at various positions of rest or motion are transforming the various forms of mechanical energy, but the total energy is conserved at every point. At the point A, energy is all potential, at B, it is partly potential partly kinetic energy, However, at the point C, all the potential energy has been converted to kinetic energy. At D, some of the kinetic energy has been converted to potential energy as the car climbs up the hill.
Therefore, the car C has KE = 100, PE = 0
To find the acceleration, we will use the formula
F=ma
Here the net force will be 40N (50 - 10)
F = ma
40 = 4a
40/4 = a
10 m/s^2 = a
Hope you understood !
The charge on each particles which are 1 m apart and feeling a repulsive force of 1 N is 1.05×10¯⁵ C
<h3>Assumption </h3>
Let the charge on each particles be q
<h3>How to determine the charge </h3>
- Final force (F) = 1 N
- Distance apart (r) = 1 m
- Electrical constant (K) = 9×10⁹ Nm²/C²
- Charge on 1st particle (q₁) = q =?
- Charge on 2nd particle (q₂) = q =?
The charge on each particle can be obtained by using the Coulomb's law equation as shown below:
F = Kq₁q₂ / r²
F = Kq² / r²
1 = (9×10⁹ × q²) / 1²
1 = 9×10⁹ × q²
Divide both side by 9×10⁹
q² = 1 / 9×10⁹
Take the square root of both side
q = √(1 / 9×10⁹)
q = 1.05×10¯⁵ C
Learn more about Coulomb's law:
brainly.com/question/506926