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A positively charged particle by mass 30 MeV/c2 and charge 2.0 e begins from rest in an electric field with magnitude 5.0 MV/m. What is the speed of the particle after moving a distance 2.0 m in the direction of the field?
1- if an area is described as a good air mass source region what information can you give about it?2- it is summer.
Neglect air resistance for the following. A soccer ball is kicked from the ground into the air. When the ball is at a height of 8.63 m, its velocity is (vx,vy) = (6.69,3.27) m/s.
When a softball player swings a bat, she accelerates it from rest to an angular velocity of 10 rad/s in a time of 0.26792 seconds. What is the magnitude of the torque she applies to the end of the bat? Model the bat as a uniform rod of length 0.90 m ..
Bill can throw a ball vertically at a speed 1.2 times faster than Joe can. How many times higher will Bill's ball go than Joe's
A converging lens of focal length 40 cm and a diverging lens of focal length 40 cm are 160 cm apart. Estimate the final image height and position
A high-voltage transmission line with a resistance of 0.32 /km carries acurrent of 980 A. What is the power loss due to resistance in the line
a hot-air balloon is open at the bottom. the balloon which has a volume of 214 m3 is filled with air that has an
A uniformly charged ring with radius a = 10cm carries a total electric charge Q=3microCoulombs and rotates with angular speed w = 140rad/s counterclockwise about the z-axis. Find the magnetic field at the ring's center.
A 5.04-g bullet is shot through a0.99-kg wood block suspended on a string2.00 m long. The center of mass of the block rises a distance of0.41 cm. Find the speed of the bullet asit emerges from the block if its initial speed is 396 m/s.
how much money does it cost to leave a 100 watt light bulb on for 1 hour if electricity sells for 10cents per kW-h. a) 1cent b) 8 cent c) 22 cent d) 44cent e)100 cent
a michelson interferometer is set up to produce circular fringes using a krypton source of wavelength 605.8 nm. find
Thus, to eliminate the difficulties with motion sickness, designers must choose the distance between the astronaut's feet and the axis about which the space station rotates to be greater than a certain least value. What is this least value.
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