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A spaceship travels at constant velocity from Earth to a point 780 ly away as measured in Earth's rest frame. The ship's speed relative to Earth is 0.9990c. A passenger is 23 yr old when departing from Earth.
A) How old is the passenger when the ship reaches its destination, as measured by the ship's clock?
An AC voltage source, with a peak output of 200V, is connected to a 50 ohm resistor. What is the rate of energy dissipated due to heat in the resistor
Two cylinders of the same material and length, are held horizontally one atop the other with space in between so they are not touching.. Viewed from the end they look like two circles on top of each other with space between(looks like a lower case..
When Capacitor C1 having voltage V is connected with another capacitor C2 having zero charge in parallel with C1 what would be the dissipated energy.
A galvanometer has a coil resistance of Rgalv = 46.7 ?. It is to be made into an ammeter with a full-scale deflection equal to I = 1.45 A. what size shunt resistor should be used
A single convex lens projects a focused image of an object onto a screen. If the lens is 15 cm from the object and and 36 cm from the screen, what is the focal length of the lens
A charged object moving with a velocity v = 210 m/s passes through a magnetic field of B = 0.70 T that is oriented at an angle of 350 relative to the velocity. what is the magnitude of the charge on the object
John measured the thickness of a book using a measuring stick. Calculate the standard deviation of the mean
A 685 kg car stopped at an intersection is rear-ended by a 1470 kg truck moving with a speed of 12.5 m/s. find the final speed of both vehicles after the collision
A 20 times telescope has a 12{rm cm}diameter objective lens. What minimum diameter must the eyepiece lens have to collect all light rays from an on-axis distant source.
If a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce?
A 75 kg person is standing in an elevator that is moving upwards at 0.5m/s and accelerating downwards at 0.2 m/s2. What is the normal force of the elevator floor acting on the person
A 7.05 10-3-kg plastic ball with a charge -0.156 µC is suspended from a ceiling with an insulating thread such that the ball stays between the plates of the capacitor. What is the magnitude of the electric field between the plates
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