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If astronauts could travel at v= 0.950c, we on Earth would sayit takes (4.20/0.950) = 4.42 years to reach Aplha Centauri, 4.29light years away. The astronauts disagree.
a) How much time passes on the astronauts clocks?
b) What is the distance to Alpha Centauri as measured by theastronauts?
Three capacitors of 2.0, 9.0, and 15.0? F are joined together in parallel. What is their equivalent capacitance
An outfielder throws a baseball to his catcher in an attempt to throw out a runner at home plate. The ball bounces once before reaching the catcher.
A hydrometer is used to measure the specific gravity of liquids. For a sure liquid a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? State the answer in SI units.
Suppose the ball is thrown from the same height as in the above problem at an angle of 36.0°below the horizontal. find the speed and angle of the velocity vector with respect to the horizontal at impact
A woman flying aerobatics executes a maneuver r = 380m, Determine the value of the centripetal force acting on the woman flying the airplane when at the top of the loop
Your toaster has a power cord with a resistance of 2.2×10?2 connected in series with a 9.9 nichrome heating element. How much power is dissipated in the heating element
A school bus takes 0.89 h to reach the school from your house. If an average velocity of the bus is 21.1 km/h to the east, what is the displacement.
A 1 m stick is used as a simple pendulum with a 2 kg weight on the end. What is its period of oscillation
1. a spring with negligible mass stretches 34.0 cm when a 144 g gram mass is suspended from it. now i suspend a mass
Gas is contained in an 7.0 Lvessel at a temperature of 20°C and a pressure of 8.8 atm. Determine the number of moles of gas in the vessel
A steel rod (ρ = 7860 kg/m3) has a length of2.40 m. It is bolted at both ends between immobile supports. Find the tension that develops when the rodloses 3230 J of heat
Above the surface of the Earth, the magnitude of the acceleration due to gravity is inversely proportional to the square of the distance from the Earth's center.
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