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A proton initially at rest is accelerated by a uniform electric field. The proton moves 6.44 cm in 1.08 10-6 s. Find the voltage drop through which the proton moves.
A loudspeaker of mass 19.0 kg is suspended a distance of = 1.60 m below ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 3.30m . What is the tension in each of the cables.
At what angle should the highway engineer bank. What is the magnitude of the acceleration.
The magnetic force exerted on a 3.0-m segment of straight wire is 1.9 N. What is the angle between the wire and the magnetic field
A closely wound rectangular coil of 100 turns has dimensions of 20.0{\rm cm} by 50.0{\rm cm}. What is the average emf induced in the coil
An alpha particle with kinetic energy 17 MeV makes a head-on collision with a lead nucleus at rest. What is the distance of closest approach of two particles.
A lead ball is dropped into a lake from a diving board 5.6 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 5 after it is released..
A 1300- {rm N} crate slides 15- {rm m} down a ramp that makes an angle of 35^circ with the horizontal. If the crate slides at the constant speed, how much thermal energy is created.
For instance, the flute can be described as an open-open pipe because a flutist covers the mouthpiece of flute only partially. Meanwhile, a clarinet can be described as an open-closed pipe as the mouthpiece of the clarinet is almost completely closed..
During a thunderstorm, you see a flash of lightning hit the Earth far away from your location. You look at your watch and hear the thunder exactly 10 s after. How far away did the lightning strike the ground
Two sounds differ in intensity level by 4.62 dB. What is the ratio of the intensities of these two sounds? (Let I1 be the intensity of the first (higher) sound and I2 be the intensity of the second (lower) sound.)
How far from the point of the drop will the rock hit the ground.
A stunt man whose mass is 70 kg swings from the end of a 3.7-m long rope along arc of a vertical circle. Presume he starts from rest when the rope is horizontal.
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