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Question: A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, 13 years have elapsed on earth, and 8.9 years have elapsed on board the ship.
A- How far away is the planet, according to observers on earth?
Answer in meters.
If possible just a brief explanation how you got the answer?
How many bright fringes appear between the first diffraction envelope minima (the first diffraction minima on each side of the central diffraction maximum) for a double slit pattern if λ = 550 nm, the slit spacing is 0.15 mm and the slit width is 50 ..
A blow-dryer and a vacuum cleaner each operate with a voltage of120 V. The current rating of the blow-dryer is 12 A, and that of the vacuum cleaner is 5.5 A. Determine the power consumed by theblow-dryer.
A 10g bullet is fired horizontally into a 300g wooden block initially at rest on a horizontal surface and becomes embedded in it. The coefficient of friction between block and surface in 0.50. The combined system slides 4.0m before stopping. With ..
q1. a block with a mass of 20 g is pulled at a constant speed across a horizontal tabletop with a spring scale. the
A 2.3kg cart is rolling across a frictionless, horizontal track toward a 1.5kg cart that is held initially at rest. find the velocity of the first cart when the second cart was still at rest
There are 2 inclines A & B. Identical carts are placed on the top of each incline and release them from rest. Both inclines have the similar height and are friction less, but angles of the two incline are not the similar. Would carts acceleration ..
A hollow conducting sphere has an inner radius of r1 = 0.19 m and an outer radius of r2 = 0.35 m, What is the field E in N/C 1 m from the sphere's outer surface
In an oscillating series RLC circuit, find the time required for the maximum energy present in the capacitor during anoscillation to fall to half its initial value. Assume q =Q at t = 0. (Use R, L,C, and Q, as necessary, where all quantities arein SI..
A water wave traveling in a straight line on a lake is described by the equation y(x,t)=(3.75cm)cos(0.450cm^-1 x+5.40s^-1t), How fast does a wave crest travel past the fisherman
A sledge loaded with bricks has a total mass of 17.1kg and its is pulled at constant speed by a rope inclined at 20.0 degrees above the horizontal. the sledge moves a distance of 20.8 m on a horizontal surface. The coefficient of kinetic friction ..
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How far does the jumper jump
A spool of wire of mass 6.9 kg and radius 0.28 m is unwound under a constant wire tension 15 N. Assume the spool is a uniform solid cylinder that rolls without slipping. Find the friction force on the bottom of the spool
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