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Use the semi-infinite-well potential to model a deuteron, a nucleus consisting of a neutron and a proton. How many excited states are there
If we assume the ice is perfectly slick (that is, no friction between the crewman and the ice once he slips and falls down), At what speed will the crewman hit the bottom of the ravine
Four identical particles of mass 0.608 kg each are placed at the vertices of a 4.08 m x 4.08 m square and held there by four massless rods, What is the rotational inertia of this rigid body
If, in actuality, a 750 kg car with an initial speed of 96.0 km/h is observed to coast up a hill to a height of 17.0 m above its starting point, how much thermal energy was generated by friction
A photon having E = 12.5 keV energy scatters from a free electron inside a metal. At which angle will the electron scatter
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the
A rail car that weighs 34 N is accelerated at 8.3 m/s/s for 5.9 seconds. How much work is done on the rail car? The acceleration is constant
A 232 kg cart runs into the rear end of a 102 kg cart that is stationary. What is the speed of the moving cart before the collision
Consider a capacitor consisting of two identical metal plates parallel to each other. Each plate has an area of 140 cm2 and they are separated by 2.7 mm. Find the capacitance of the capacitor
Mary and her younger brother Alex decide to ride the carousel at the State Fair. What is Mary's angular speed %u03C9M and tangential speed vM
Mercury is poured into a U-tube. The left arm of the tube has cross-sectional area A1 of 10.4 cm2, Determine the length of the water column in the right arm of the U-tube
When a potential difference of 2 V is applied across the ends of a wire of 5 m length, a current of 1A is found to flow through it. Calculate: the resistance per unit length of the wire
A ball rolls off a platform that is 6.8 meters above the ground. The ball's horizontal velocity as it leaves the platform is 7.4 m/s.How much time does it take for the ball to hit the ground
A simple pendulum 2.0m in length, is released with a push when the support string at an angle of 25 degrees from the vertical. What is the speed at the bottom of the swing
In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.70{\rm m/s} relative to the ground. What is the magnitude of the ball's velocity relative to Juan
A capacitance of is connected to an alternating emf of frequency 100 cycles/second. What is the capacitive reactance
A swimmer dived off a cliff with a running horizontal leap. What must his minimum speed be just as he leaves the top of the cliff
You want to create an electric field at location. where would you place an electron to produce this filed at the origin
a light spring whose unstretched length is 2.0 cm. You're going to use this spring to measure charge. First, you attach one end of the spring to the ceiling, What is the charge on the ball
If a particle that had a charge q=6 micro C and mass 0.2 grams that moves in an uniform external electric and also magnetic fields that are E= ( 2Î +3? +9?) N/C, what is the magnitude of the p
Lasers are used extensively in eye surgery to remove unwanted "material" from the eye or reshape the eye's lens. What is the power during one of these pulses
A cat walks along a plank (length = 4.00 m and mass = 7.00 kg). What is the mass of the cat
A cubical box .2 m on a side is completely immersed in a fluid. The pressure at the top of the box is 105 kPA, What is the denstiy of the fluid
What is the total force on the bottom of a swimming pool (20m by 10m), if the pool has an average depth of 1.50 m
A 5.0-kg projectile is fired over level ground with a velocity of 200.0 m/s at an angle of 30.0 degg above the horizontal. Over the entire trip the work done by the air forces is