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A spaceship is observed from the Earth to be moving toward a star at a speed of 0.80 c. If the distance from the spaceship to the star is 1.6 ly as measured from earth, how much time passes on the space ship while traveling to the star?
Three uniform thin rods, each of length L = 19 cm, form an inverted U. The vertical rods each have a mass of 12 g; the horizontal rod has a mass of 44 g. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass.
A 530kg cannon fires a 11kg cannonball with a speed of 200m/srelative to the muzzle, When the cannon fires, what is the speed of the cannonball relative to the earth
A beam of unpolarized light in air is incident at an angle of 59.0? (with respect to the normal) on a plane glass surface. What is the angle of refraction of the transmitted beam
The vector is 3.5 long and is directed into this page. Vector points from the lower-right corner of this page to the upper-left corner of this page and has components -19.5, 25.
A 455pF capacitor is charged to 155V and then quickly connected to a 255mH inductor. Determine the peak value of the current
A 0.200 kg block is placed on a vertical spring (k = 5.80x 10^3 N/m) and pushed downward, compressing the spring 0.100 m. As the block is released, it leaves the spring and continues to travel upward. What height above the point of release will bl..
A spherical brass shell has an interior volume of 1.51 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.53 x 10-3 m3. What is the volume of mercury that spills out of the hole
Isaac Newton, having convinced himself (erroneously as it turned out) that chromatic aberration was an inherent property of refracting telescopes, invented the reflecting telescope.
A solid insulating cylinder of radius A is surrounded by a hollow, concentric conducting cylinder of inner radius A and outer radius B. What is the total charge on the solid cylinder
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
Suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycle/s, and the antenna radiates electromagnetic waves in a region of space. What is the magnitude of the Poynting vector
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.66 V, What emf and current are induced in the square coil
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