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Q1. A parallel-plate capacitor is formed from two 2.0 {rm cm} times 2.0 {rm cm} electrodes spaced 5.0 {rm mm} apart. The electric field strength inside capacitor is 1.0 times10^ {6} ;{rm{N/C}}.
What is the charge (in {rm nC}) on positive electrode?
What is the charge (in {rm nC}) on negative electrode?
Q2. A piece of balsa wood with density 0.50g/cm^3 is released under water. What is the initial acceleration?? Repeat for a piece of maple with density 0.760 g/cm^3? Repeat for a ping-pong ball with the average density of 0.127 g/cm^3.
A 260 wooden raft floats on a lake. When an 80 man stands on the raft, it sinks 5.0 deeper into the water. When he steps off, the raft vibrates for a while. What is the frequency of vibration.
What is current flowing through the collider
Determine the tension in each cable if boat has a mass of 490 kg and the angle of each cable is 50 degrees from the horizontal and the boat is being momentarily held at rest. Evaluate this to the tension when the boat is raised and held at rest so th..
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A star is moving away from the Earth at the speed of 200 km/s. What will be the wavelength of a spectral line that would have the wavelength of 500 nm if the star were at rest.
The tension Tu in upper (taut) segment of the belt is 170 N, and flywheel has a clockwise angular acceleration of 1.67 rad/s2. Find out the tension in the lower (slack) segment of the belt.
Two point charges = 2.10 and = -6.40 are 0.100 apart. Point is midway between them; point is 0.080 from and 0.070 from. Take the electric potential to be zero at infinity.
An electron is projected vertically upward with a speed of 1.65x10^6 m/s into a uniform magnetic field of 0.160 T that is directed horizontally away from the observer. What would the radius of the circle be.
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