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1) What does it mean for an object to become electrically charged ?
2) What is polarization?
3) Describe the process of charging an object by contact ?
4) Describe the process of charging an object by induction ?
A spaceship is coming directly toward you while you are in the international space station. You are told that the spaceship is shining sodium light. You have an apparatus that and resolve two closely spaced wavelengths if the difference is 0.55 nm. I..
A string %uFB01xed %uFB01xed at both ends is 1 m long. It resonates in its second harmonic at a frequency of 55 Hz. What is the speed of transverse waves on the string
Boat A negotiates a curve whose radius is 363m. Boat B negotiates a curve whose radius is 110m. Each boat experiences the similar centripetal acceleration. What is the ratio of speed of boat A to that of boat B.
Light of frequency 6.0 x 10^14 hertz strikes a glass/air boundary at an angle of incidence θ1. The ray is partiallyreflected and partially refracted at the boundary, as shown above.The index of refraction of this glass is 1.6 of this frequency. De..
A package is dropped from a passing plane (moving in the horizantal direction) and produces a projectile motion as it is falling to the ground. If it takes the package only 32.12 seconds until it hits the ground, how far above the ground was the plan..
A 390 ohm resistor and a 6.10uF capacitor are connected in parallel to an ac generator that supplies an rms voltage of 220V at an angular frequency of 360rad/s.
A linearly-polarized em wave moving in vacuum perpendicular to aperfectly reflecting surface has an intensity of 12.0GW/m2. Find the radiation pressure it exerts on the surface
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you want to apply to a 4.0-lb plastic calculator to start it moving from rest.
A 1.20 kg ball and a 4.00 kg ball are connected by a 74.0 cm long massless, rigid rod. What is the rotational kinetic energy of the structure
A man with a mass of 59 kg stands up in a 73-kg canoe of length 4.0 m floating on water. How far does the canoe move
We pass a laser beam through a double slit. On a screen 18.52 m away, we observe a series of bright lines which are 3.4 mm apart. What is the distance between the two slits
A soccer ball is kicked with an initial horizontal velocity of 15.0 m/s and an initial vertical velocity of 14.0 m/s. What is the maximum height the ball goes above the ground
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