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A 0.68 pm photon produces a electron-positron pair. What's the energy of the photon?
MeV
The electron and positron have the same velocity. What is the kinetic energy of the electron?
keV
A falling stone takes 0.33s to travel past a window 2.20 m tall on the right. From what height above the top of the window did stone fall.
How much force must the elbow exert?What is the horizontal distance between the elbow and the point where the weight of the forearm acts?
The figure shows the light intensity on a screen behind a double slit. The slit spacing is 0.20 mm, What is the distance from the slits to the screen
a satellite of a distant planet has a period of revolution around the planet of 3.89*10^5 seconds, determine the centripetal acceleration of the satellite
The entrepreneur who founded the company is convinced that sales will increase next year by 150% and that net operating income will increase by 400%, with no increase in average operating assets. Illustrate what would be the company's ROI?
Iodine molecules dissociates into atoms after absorbing light of 4500 A.If one quantum of radiation is absorbed by each molecule, Find the KE of the iodine atoms
A 7.3×10?4V/m electric field creates a 5.0×1017electrons/s current in a 2.0-mm-diameter aluminum wire. What is the mean time between collisions for electrons in this wire
A +3.07 nC point charge is placed at one corner of a square (1.90 m on a side), and a -6.51 nC charge is placed on the corner diagonally opposite. What is the magnitude of the electric field at either of the other two corners?
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 is 3.7 kg and m2 is 9.0 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor.
In the Biomedical and Physical Sciences building at MSU there are 132 steps from the ground floor to the sixth floor. Each step is 16.6 cm tall. How many food Calories did the person burn during the walk
A spherical rain drop carries a charge of 2.70E-8 C and has a potential of 5.76E+4 V at the surface, Find the surface area of the drop
Determine the location at which the tuning is formed and the vibrating frequency of a string to form a standing wave pattern.
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