A pendulum of mass 90 gm and length 60 cm is left to swing from an initial angle of 40 degrees, and seen to raise up to an angle of 38 degrees when it reaches the other side. How much energy did the pendulum lose? Why is there a loss of energy?

Q: from 23 cm to ∞ uses a 15 cm focal length magnifier. (a) Find the angular magnification when the ma...

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Q: A block-spring system oscillates on a frictionless horizontal surface. The tim needed for the block ...

A: GivenA block-spring system oscillates on a frictionless horizontal surfaceThe time needed for the bl...

Q: In the circuit, the capacitor is fully charged when switch S is closed. Calculate the time nee the c...

A: GivenC=20 mFL=55 H

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Q: How much electron volt can be use to move 12 nC charge on 15 V battery?

A: Given data:  Charge (q) = 12 nC = 12×10-9 C Battery voltage (V) = 15 V Required: Work (W) 

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Q: Part A The switch in (Figure 1) has been open for a long time. It is closed at t = 0 s. What is the ...

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Q: flux is 7 Nm^2/C if the charge is 28 µC and the force acting on it is 14 micronewtons?

A: Given Electric flux, ϕ=7 Nm2/CCharge, q=28 μC=28×10-6 CForce acting, F=14 μN=14×10-6 N

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Q: An inductor of L = 8.55 H with negligible resistance is placed in series with a 8 = 12.5 V battery, ...

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Q: Christv has a grandfather clock with a pendulum that is 3.210 m long. a) If the pendulum is modeled ...

A: Length (L) of pendulum in a clock = 3.210 m   

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Q: A car with a mass of 2000 kg and a speed of 25 m/sec brakes to a stop. How many calories of heat are...

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Q: 4. The rod OA rotates about point O such that 0 = t rad. At the same time, the collar B is sliding o...

A: Given, θ = t3 radr = 100 t2 mm

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Q: 1. Newton's second law of motion is best shown by which of the following equations? A. a =vt B. a =F...

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A: mass of first marble (m1) = 10 g initial velocity of first marble (u1) = -0.4 msmass of second marbl...

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A: To categorize the scenario in which the observer detects higher, lower or same frequency as emitted ...

Q: 4. From your results, what happens to the magnification M as the object gets closer and closer to F?

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Q: 1. a) A waxed paper capacitor has two parallel plates, each 50 mm by 30 mm. If the capacitance of th...

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Q: You are instructed to travel 12.0 m and then 10.0 m. You use these instructions such that your dista...

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A: Given, Charge, q= 12 pC Electric field intensity, E = 6×10-3 NC

Q: 2. When a 12.0V car battery runs a single 30J headlight, How many electrons pass through it each sec...

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Q: Refer to the given circuit. C1 = 5 µF C3 = 8 µF C2 = 4 µF C4 = 6 µF C5 = 4 µF DURACELL VT = 12 V Com...

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Q: PROBLE A surveyor walks as shown in the figure then due south for 10.0km. What is his total displace...

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Q: ball is held at a height H above a floor. It is then released and falls to the floor. If air resista...

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Q: Find the magnetic field at a point 50.0 cm from a long conductor carrying current of 3.00A.

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Q: 2. The capacitors have values Cı = 2.0 µF and C2 = 4.0 µF, C3 = 5.0 µF C4 = 7.0 µF and the potential...

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Q: Replace the 30-kN force acting at point A by a force-couple system at (a) point O and (b) point B. A...

A: Given, Force acting on point A, F = 30 kN

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Q: field in the +y direction with a speed of 3 x 106 m/s. What is the magnitude and direction of the ma...

A: GivenMagnitude of magnetic field, B=3 G , Directed in +ve x directionVelocity of proton, v=3×106 m/s...

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Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.