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The closest star to our solar system is Alpha Centauri, which is4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earthtravels toward the star. How much time would elapse on a clock on board the spaceship?
A) 3.23 yB) 4.40 yC) 5.15 yD) 5.38 y
A string is attached to a rigid support and the cylinder allowed to drop from rest. Find out the acceleration of the cylinder.
two coils are wound around the same cylindrical form when the current in the first coils is decreasing at a rate of
A person walks up a stalled 14 m long escalator in 81 s. When standing on the same escalator, now moving, the person is up in 48 s. How much time would it take that person to walk up the moving escalator?
A soap bubble (with index of refraction 1.33) is floating in air. If the thickness of the bubble wall is 114 nm, what is the wavelength of the visible light that is most strongly reflected
An object has a kinetic energy of 303 J and the momentum of magnitude 22.9 kg·m/s. Find the speed and the mass of the object.
If a metric ton is 1.000 x10^e3 kg, how many 74 kg people can safely occupy an elevator that can hold a maximum mass of accurately 1 metric ton.
Make use of the data in appendix B to determine how much the volume of the water will change. For a tank diameter of 2 ft, would the corresponding change in water depth be very noticeable
The conduction electrons in a metal can be considered for some purposes as an ideal gas. Find the beam current in amperes
Capacitors C1 = 5.0 µF and C2 = 2.0 µF are charged as a parallel combination across a 250 V battery. Calculate the resulting charge on each capacitor
A conical pendulum is formed by attaching a 0.90kg ball to a 1.0m -long string, What is the ball's angular velocity, in rpm
Two coils of wire are placed close together. Initially, a current of 4.70 A exists in one of the coils, but there is no current in the other. What is the mutual inductance of the two-coil system
Two cylindrical rods, one copper and the other iron, are identical in lengths and cross-sectional areas. What is the voltage between the ends of the copper rod
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