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1. Find the de Broglie wavelength and frequency of an electron whose speed is 10% of the speed of light. Using the EM spectrum chart, what kinds of EM waves could this de Broglie wavelength represent? Please show all calculations and explanations!
2. Calculate the de Broglie wavelength of
a. a particle of mass 1 g traveling with a speed of 2.0 m/s.
b. a He atom traveling with a speed of 103 m/s.
3) Two isolated conducting spheres of radii a and b are placed distance d away from each other. The first sphere (with radius a) has positive charge q, the second one has no excess charge. Then, the spheres are connected by thin wire. Find charges on the spheres after they are connected.
4. The electric motor of a model train accelerates the train from rest to 0.690 m/s in 20.0 ms.The total mass of the train is 875 g. Find the average power delivered to the train during the acceleration.
A 3.0-kg and a 5.0-kg box rest side-by-side on a smooth, level?oor. A horizontal force of 32 N is applied to the 3.0-kg box pushing it against the 5.0-kg box, How large is the contact force between the two boxes
An electron is accelerated by a uniform electric field (1600V/m ) pointing vertically upward. Determine the direction of electron's velocity after it moves 0.40cm from rest
a 140g block on a frictionless table is firmly attached to one end of a spring with k 24nm . the other end of the
1. a no. 22 dia.0.62 mm conducting wire of length 10.0 mhas a resistance of 0.60 o.a what would be the resistance of a
q1. if a thunder clap comes 1.4 s after the lightning strike how far away is the strike? calculating the wavelength and
question a pickup truck has a width of 78.9 in. if it is traveling north at 38 ms through a magnetic field with
a small map shows new york to be 486 miles in a direction 8deg north of east from columbus. the same map shows that
A net is positioned a horizontal distance of 52.0 m from the cannon. Explain at what height above the cannon should the net be placed in order to catch the daredevil?
A 75 N man stands in the middle of a frozen pond of radius 20.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. How long does it take him to reach the south shore
Explain basic wave properties and the relationships among them, such as wavelength, amplitude, period, frequency, pitch, and intensity. Apply the Doppler effect. Explain wave interference.
A cart starts from rest and accelerates at 4.0 m/s2 for 5.0 s, thenmaintain that velocity for 10 s, What is the final speed of the car
A pronghorn antelope has been observed to cover 1.60 km with an average speed of 67.0 km/h. The antelopes speed during the first half of the distance is 88.0km/h. find the antelopes speed during the second half of its run
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