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Suppose a news report stated that starship Enterprise had just returned from a 5 year voyage while traveling at 0.81c.
(a) If the report meant 5.0 years of Earth time, how much time elapsed on the ship?
years
(b) If the report meant 5.0 years of ship time, how much time passed on Earth?
A small block has a horizontal velocity of 4.00 m/s as it slides off the edge of a table, how far does the block travel horizontally while it is in the air
What is the true potential difference among this resistor when the meter is not present? I thought this was just 25 but it is wrong when I enter in.
A railway car moves past you at high speed. According to an observer riding on the railway car, a clock at the front of the car is synchronized with an identical clock at the rear of the car.
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
Three forces are applied to a tree sapling, to stabilize it. If F1= 282 N and F2= 355 N, find F3 in magnitude and direction. The angle between F1 and F2 is equivalent to 110 degrees.
Use Pascal's principle. Given that Fout is 87 lb., the areas of the output and input cylinders are Aout 29 in2 and Ain 6 in2, what is the input force
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 6.7 during this procedure, by what factor does the ..
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration
You have been visiting a distant planet. Your measurements have determined that the planet's mass is two times that of earth but the free-fall acceleration at the surface is only one-fourth as large. What is the planet's radius
The windpipe of a typical whooping crane is about 4.5 feet long. What is the lowest resonant frequency of this pipe
Estimate the pressure exerted on a floor by the following one pointed chair leg (56 kg on all four legs) of area = 0.06 cm2 N/m2
When these two wires are connected in equivalent to the same battery, describe the reasoning of the steps that allow you to find out which of these wires will consume the greater amount of power by warming up and dissipating this energy as heat.
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