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In a simple model of the hydrogen atom, the electron revolves in acircular orbit around the proton with a speed of 1.6 multiplied by 106m/s. Determine the radius of the electron's orbit.
The cord between the pouch and the person's hand has negligible mass and will break when the tension in the cord is 33.0 N or more. Assume the sling thrower could gradually increase the speed of the stone.
a helium-neon laser beam has a wavelength in air of 633 nm . it takes 1.38 ns for the light to travel through 30 cm of
One gallon of paint (volume = 3.78 10-3 m3) covers an area of 20.2 m2. What is the thickness of the fresh paint on the wall
If the sphere is enclosed in a room whose walls are kept at-5°C, what is the net flow rate of energy out of the sphere
A string of length 10.0m has a linear mass density of 25g/m. What is the speed of the pulse as it approaches the top of the string
Transporting Alpha Particles(Helium Nuclei). Design a part ofa transport system which will deflect the beam of alphaparticles (m=6.64 x 10-27kg, q= 3.2 x 10-19C) through an angle of 90 degrees by using a magnetic field.
Determine the capacity of a roll crusher. The separation is 7 mm, speed of the rollers is 50 rpm, roller diameter is 23 cm, roller length is 0.4 m
question a 0.200-kg piece of aluminum that has a temperature of -163 degc is added to 1.1 kg of water that has a
copper has 8.5 x 10^28 electrons per cubic meter. if a current of 1.55 A is flowing in the wire, what is the average drift speed of the electrons along the wire
A grating has 380 rulings/mm and is 6.2 mm wide. How many higher orders of maxima can be seen
On a frictionless track, a 0.55 kg cart is traveling at 0.70 m/sec when it runs into a spring that is anchored to the end of the track. what is the original kinetic energy of the cart as it approached the spring
A 700 N car traveling at 25m/s.The breaks are applied suddenly and the car slides to a stop. The average breaking force between the tires and the road is 7100 N.How far will the car slide once the breaks are applied.
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