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A proton and an electron are moving due east in a constant electric field that also points due east. The electric field has a magnitude of 1.0×104 N/C. Decide the magnitude of the acceleration of the electron and the proton.
What is the magnitude and direction of the force on an electrontraveling 8.5 x 105 m/s in the + x direction caused by amagnetic field of 0.5 T in the + y direction?
When an electron in a hydrogen atom falls from a higher energy state down to the ground state, What is the quantum number of the level from which the electron fell
A steel wire in a piano has a length of 0.8000 m and a mass of 3.900 10-3 kg. To what tension must this wire be stretched so that the fundamental vibration corresponds to middle C (fC = 261.6 Hz on the chromatic musical scale)?
At the right you see that a string (mass negligible) passes over a pulley. calculate the normal force of the floor on the bottom of the 5 kg mass
A 0.56 kg block is hung from and stretches a spring that is attached to the ceiling. What is the mass of the second block
two uniformly charged insulating rods are bent in a semi circle shape with radius R=12cm. find direction of the elctric field at the center of the circle
question a woman rides a bicycle for 1 hour and travels 15 kilometers. find the angular velocity of the wheel if the
The Concorde travelled 8000 km between two places in Europe and North America at an average speed of 375 m/s. What is the total dissimilarity in time between two similar atomic clocks, one on the airplane and one at rest on Earth through a one-way tr..
At the end of a factory production line, boxes start from rest and slide down a 35o ramp 4.8 m long. If the slide is to take no more than 2.1 s, what is the maximum coefficient of friction among the box and the slide?
A wheel of mass M, radius of gyration k, spins smoothlyon a fixed horizontal axle of radius a which passes through a holeof slightly larger radius at the hub of the wheel. find the time and the number of turns that it takes to stop
Draw a free body diagram for each block in the system. Find the acceleration of the system and the tensions in the ropes. Coefficient of kinetic friction of 0.3 exists between the two blocks with no other frictional surfaces.
A steel wire has the following properties: Cross-sectional area = 0.040 cm^2 Young's modulus = 2.0 x 10^11 Pa Shear modulus = 0.84 x 10^11 Pa Proportional limit = 3.60 x 10^8 Pa Breaking stress = 11.0 x 10^8 Pa, What is the maximum weight that can ..
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