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An alpha particle is fixed at the origin of coordinates. A neutral sodium atom is fixed at the position <1.3,0,0>e-6 m. ( Be sure to show all of your work and reasoning in your solutions to this problem.)
a) What is the value of the electric field at the position of the sodium atom due to the presence of the alpha particle? (Hint: Remember that electric field is a vector quantity.)
When a large star becomes a supernova, its core may be compressed so tightly that it becomes a neutron star, what is the speed of a particle (in km/s) on the star's equator
A 115kg mail bag hangs by a vertical rope 3.5m long. Find the force needed to hold the bag in its new position
A woman throws a ball at a vertical wall d = 3.0 m away. The ball is h = 1.5 m above ground when it leaves the woman's hand with an initial velocity of 12 m/s at 45°. How long was the ball in the air after it left the wall
A rotating water pump works by taking water in at one side of the rotating wheel, and expelling it from the other side. If a pump with a radius of 0.120m starts from rest and accelerates at 30.50 rad/s2.
Two capacitors, C1 = 6.00 µF and C2 = 14.0 µF, are connected in parallel, and the resulting combination is connected to a 9.00-V battery. (a) Find the equivalent capacitance of the combination.
A glass wedge is constructed to vary smoothly in thickness from zero to t = 0.200mm. What is the refractive index of the wedge
Determine the differential equation of motion for the damped oscillations and find the time (in term of M) it takes for the system to settle down to oscillations of only 25% of the initial amplitude; (4')
a 120 turn coil of radius 1.8 cm and resistance 5.3 ? is placed outside a solenoid of radius 1.6 cm. Find the magnitude and direction of the current induced in the coil
In a tractor-pulling contest, a 2500 kg tractor pulls a 5000 kg sledge with an acceleration of 0.61 m/s2. (The tractor rolls on its wheels; the sledge slides.), What is the force of the sledge on the tractor
a block of mass m1=8 rests on a frictionless surface and is attached to a light cord that is wrapped around a solid cylinder of mass m2, radius r=.130 m and moment of inertia I=1/2m2R^2.
The inductance of a closely packed coil of 350 turns is 9.5 mH. Calculate the magnetic flux (per winding) through the coil when the current is 5.0 mA
Two astronauts of equal mass 92 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 18 meters. What is the new angular velocity of the two astronauts
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