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Question1
An electron accelerated from rest through a voltage of 400 V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 30 cm, what is the magnitude of magnetic field?
Question2
A pair of oppositely charged parallel plates is separated by 4.83 mm. A potential difference of 505 V exists between the plates.
What is the magnitude of the force on an electron that is in the region between the plates at a point accurately 2.52 mm from the positive plate?
Question3
Two bodies fall freely from different heights & reach the ground concurrently. The time of descent for the first body is t1=2sec. & for the second, t2=1sec.
At what height was the first body situated when the other began to fall?
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the total time the blue car is moving
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground while he slows down.
At a rock concert, the sound intensity 1.0m in front of the bank of loudspeakers is 0.10W/m^2. How much energy is transferred to each eardrum in one second
A bat strikes a 182g ball with a force of 109-N at an angle of 57° above the horizontal. What is the ball's vertical acceleration (positive for upward, negative for downward).
An object of mass 48.0 g is initially placed in boiling water so that it is at 105° C. Then the object is dropped into a calorimeter, Find the specific heat of the object
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 22°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
A viewing window in the Atlanta aquarium is 58 inches wide and 52 inches high. what is the outward force on the window
A ladder is leaning against a vertical wall. The coefficient of friction between the ladder and the horizontal surface is u1=1.265, Determine the maximum angle with the vertical the ladder can make
Suppose you hear a clap of 4.63 seconds after seeing the lightning stroke. how far are you from the lightning stroke
What mass (in grams) of steam at 100°C should be mixed with 212 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 14.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg..
An ideal gas at 20 ?C consists of 2.2×1022 atoms. 5.9J of thermal energy are removed from the gas. What is the new temperature in ?C
A race car starts from rest on the circular track of radius 455m. The car's speed increases at the constant rate of 0.480m/s2. At the point where magnitudes of the centripetal and tangential accelerations are equal.
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