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Two 2.50 cm X 2.50 cm plates that form a parallel-plate capacitor are charged to 0.706 .
a. what is the potential difference across the capacitor if the spacing between the plates is 1.20mm ?
b. What is the potential difference across the capacitor if the spacing between the plates is 2.40mm ?
A 4.94-g bullet is shot through a 0.99-kg wood blocksuspended on a string 2.00 m long. The center of mass of the blockrises a distance of 0.50 cm. Find the speed of the bullet as ite merges from the block if its initial speed is 393 m/s.
A coffee filter of mass 1.1 grams dropped from a height of 1 m reaches the ground with a speed of 0.5 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? Start from the Energy Principle and select as system..
compute the impedance of a series r-l-c circuit at angular frequen2cy of 500 rads. r 200ohms l.9 h and c 2uf. what is
A 91.0-kg bungee jumper steps off a bridge with a light bungee cord tied to her and to the bridge. The unstretched length of the cord is 15.0 m. What time interval is required for the cord to stretch by 26.0 m
A rectangular loop of wire with sides 0.20 and 0.35 m lies in a plane perpendicular to a constant magnetic field. Assuming the loop is complete, in which direction will any induced current flow
The catapult on an aircraft carrier can take an aircraft from 0 to 83.1 m/s in 14.5 seconds, at which time the aircraft launches. What is the acceleration of the aircraft when it launches
A 9000-kg boxcar traveling at 16.0 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 6.00 m/s
A supertanker filled with oil has a total mass of 11.7·108 kg. If the dimensions of the ship are those of a rectangular box 209 m long, 81.7 m wide
The thermal expansion coefficient of copper is about 1.7x10-5 / oC. A copper cable has a length of 20 m early in the morning, when the temperature is 15 oC. What is the change in it's length (Lnew-Lold) at noon, when the temperature is 25 oC?
A combination lock has a 1.5 -diameter knob that is part of the dial you turn to unlock the lock. What is the most torque you can exert on the knob
q1. if 730 nm and 675 nm light passes throughout two slits 0.63 mm apart how far apart are the second-order fringes for
Gas is contained in an 8.2 L vessel at a temperature of 70C and a pressure of 9.2 atm. Find the number of moles of gas in the vessel
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