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In a mass spectrometer the charged particles have to reach a common specific speed. To do so, they are accelerated with an electric field and then passed through a velocity selector consisting of a straight tube with a hole at the end. In that straight tube uniform electric and magnetic fields perpendicular to each other are maintained. In a certain device, the electric field is 300 V/m and points north, while the magnetic field is 25.0 mT and points upward. The particles, which we will assume are of the positive charge "Q", travel through various speeds east, where the hole is. Determine
a. the direction of the electric force
b. the direction of the magnetic force
c. which particles travel directly to the hole (discard the weight of the particles)
Intense white light is incident on a diffraction grating that has 720 lines/mm. What is the angular separation between the violet edge (400 nm) and the red edge (700 nm) of the first order spectrum produced by the grating
A 318 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 624 mmHg. compute the moles of Ar present.
A 60 gram iron at 60o C is dropped into 200 gram of water at 20o C, What is the final equalibrium temperature of the system
A lighthouse that rises h1 = 43.6 ft above the surface of the water sits on a rocky cliff that extends $d$ = 20.0 ft from its base, as shown in the figure below. A sailor on the deck of a ship sights the top of lighthouse at an angle of $theta$ = 29...
Yusef pushes a chair of mass = 51.0 across a carpeted floor with a force (the subscript 'p' here is lowercase and throughout the question) of magnitude = 170 directed at = 35.0 below the horizontal. The magnitude of the frictional force between the c..
The coefficient of kinetic friction is 0.350. Illustrate what should be the magnitude of vector P , so that the net work done by it and the kinetic frictional force is zero?
A metallic hoop of radius 0.5m is perpendicular to a magnetic field into the page. What direction is the current induced in the hoop
Suppose that while moving into an apartment you move a refridgerator into place by sliding it across the floor. What is the least force you could exert on the fridge to move it
Two cars approaching each other collide and stick together after the collision. What was the initial velocity of the second car
An RLC circuit consists of a 218 resistor, a 45 ?F capacitor, and a 298 mH inductor, What is the phase angle between the current and the applied voltage
A system consists of three particles with these masses and velocities: mass 3.2 kg, moving north at 3.0 m/s; mass 3.8 kg, moving south at 4.9 m/s, What is the total momentum of the system
Runner A is at first 6.60 km west of a flagpole and is running with a constant velocity of 6.4 km/h due east. Runner B is firstly 7.20 km east of the flagpole and is running with a constant velocity of 8.80 km/h due west.
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