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A metal sphere of radius 80. mm is charged to a potential of -0.50 kV. With what velocity must an electron be fired toward the sphere if it is to just barely reach the sphere when started from a position 15. cm from the center of the sphere?
A body is released from rest a long way from the centre of theearth. With what velocity will it hit the earth. Describe htevelocity
a plane has a takeoff speed of 88.3 ms and requires 1365 m to reach that speed. determine the acceleration of the plane
q1.an automobile driver puts on brakes and decelerates from 68 mph to zero in 16 s. what distance does the car travel?a
Two trees have perfectly straight trunks and are both growing perpendicular to the flat horizontal ground beneath them. What is the magnitude of the squirrel's displacement
A Boeing 747 jet with a wingspan of 60.0 m is flying horizontally at a speed of 300 m/s over pheonix, What voltage is generated between the wingtips
question1take two indistinguishable metallic tumblers a and b. insulate one tumbler say a by wrapping chart paper
A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank.
An ambulance is traveling east at 55.6 m/s. Behind it there is a car traveling along the same direction at 34.5 m/s, What is the wavelength of the sound of the ambulance's siren
Compute the Coulomb repulsion energy between two nuclei of 235U (137Cs and 96Zr) that just touch at their surfaces. (b) Write the complete fission reaction equation for these products and calculate its Q-value. (assume r0 = 1.3x10-15 m) (10 pts)
Given you have a 1000 kg automobile with an Otto cycle engine, compression ratio of 10. estimate the real engine losses due to friction and drag
A typical adult ear has a surface area of 1.45 × 10-3 m2. The sound intensity during a normal conversation is about 2.49 × 10-6 W/m2 at the listener's ear. How much power is intercepted by the ear
A car takes a sharp turn on a road. Which of the following provides the centripetal force on the car? The weight of the car, frictional force, tangential acceleration, or gravitational force?
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