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Dvinal [7]
2 years ago
10

A 90-g bead is attached to the end of a 60-cm length of massless string. The other end of the string is held at point O, which i

s 200 cm above the floor, and the bead is swung counterclockwise at a constant speed in a vertical circle. The tension in the string when the bead is at the very bottom of the circle is 2.2 N. While the bead is in motion, a very sharp knife is inserted to cut the string directly below point O. How far to the right of the center of the circle does the bead hit the floor?

Physics
1 answer:
Gekata [30.6K]2 years ago
4 0
Hope this helps you.

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For the RC circuit and the RL circuit, assume that the period of the source square wave is much larger than the time constant fo
patriot [66]

Answer with Explanation:

Concepts and reason

The concept to solve this problem is that if a capacitor is connected in a RC circuit then it allows the flow of charge through circuit only till it gets fully charged. Once the capacitor is charged it will not allow any charge or current to flow.

Opposite is the case with inductor in the RL circuit. According to Faraday's law an inductor develops an emf to oppose the voltage applied but once the flux change stops then the inductor behaves just like a normal wire as if no inductor is there.

In attached figure, resistor is connected in series to the capacitor.

As we considered V_{C} the voltage across the capacitor and V_{s} the voltage across the source.

Voltage across a resistor In RC circuit.

V_{R}=V_S\left ( e^{-\frac{t}{RC}} \right )

Voltage across a resistor In RL circuit.

V_{R}=V_S\left (1- e^{-\frac{Rt}{L}} \right )

7 0
2 years ago
A 1.0-c point charge is 15 m from a second point charge, and the electric force on one of them due to the other is 1.0 n. what i
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The answer is 25nC !!! 

4 0
2 years ago
A glass beaker of unknown mass contains of water. The system absorbs of heat and the temperature rises as a result. What is the
kakasveta [241]

From the information provided in the question, the mass of the beaker is 144.4 g.

From the information provided in the complete question;

volume of water = 74 mL

Mass of water = 74 g

specific heat of glass = 0.18 cal/g ∙ °C

specific heat of water = 1.0 cal/g ∙ C°

Mass of glass =  x g

Total heat gained by the system = 2000.0cal

Temperature rise = 20.0°C

Heat gained by system = Heat gained  by glass + Heat gained by water

Heat gained by glass = x ×  0.18 × 20

Heat gained by water = 74  ×  1.0 × 20

Hence;

2000 =  (x ×  0.18 × 20) + ( 74  ×  1.0 × 20)

2000 - 1480 =  (x ×  0.18 × 20)

x = 520/3.6

x = 144.4 g

Missing parts;

A glass beaker of unknown mass contains 74.0 ml of water. The system absorbs 2000.0cal of heat and the temperature rises 20.0°C as a result. What is the mass of the beaker? The specific heat of glass is 0.18

cal/g °C, and that of water is 1.0 cal/g °C.​

Learn more: brainly.com/question/1446583

3 0
1 year ago
Rhea kicks a soccer ball at 13 km/h to Sean. After kicking the ball, the speed of the soccer ball from Rhea’s reference frame is
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Answer:  Sean is standing still, and Rhea is running toward Sean while   kicking the ball

Explanation: Your welcome :)

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Scientists and astronomers have found that in galaxies with central black holes, there are also large star formations near those
sweet-ann [11.9K]

Answer:

B

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nothing to do with black holes creating star or related

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Read 2 more answers
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