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Think an event with space-time coordinates t=2.0s x=2.5*10^8 m/s relative to frame S. Discover the value γ that will be required to transform coordinates among frames S and S'. Use c=3*10^8 m/s for the speed of light in vacuum
A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}.
During a particular car crash, it takes just 0.18s for the car to come to a complete stop from 50 km h -1. At what rate is the car accelerating during the crash
Gas is confined in a tank at a pressure of 9.5 atm and a temperature of 24.5°C. what is the pressure of the gas remaining in the tank
A centrifuge in a medical laboratory rotates at an angularspeed of 3600 rev/min. Find the constant angular accleration of the centrifuge
q. after driving a portion of the route the taptap is fully loaded with a total of 25 people with an average mass of 60
A top spins at 30 rev/s about an axis that makes an angle of 30 deg with the vertical. what is the precession rate
The weight of the car is 14 kN. You know three points on the plane, What is the force of friction (Ff=?).
A ditch d = 1.80 m wide crosses a trailbike path. An upward incline of = 14° has beenbuilt up on the approach so that the top of the incline is levelwith the top of the ditch. What is the minimum speed a trail bike must be moving to clear the ditc..
Four equal point charges, Q, are fixed at the corners of a square of side b. (a) What istheir total electrostatic potential energy? (b) How much potential energy will a fifth charge, Q, have at the center of the square (relative to V=0 a r =∞)?
A copper-constantan thermocouple generates a voltage of 4.55 10-3 volts when the temperature of the hot junction is 103.4° C, what is the temperature of the hot junction when the voltage is 1.94 10-3 volts
the inner and outer surfaces of a cell membrane carry a negative and positive charge respectively. because of these
Box A weighs 80 N and rests on a table. A rope that connects boxes A and B drapes over a pulley so that box B hangs above the table
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