GO Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of Fig. 13-51, at an altitude h of 400 km, Igor the commander of one of the ships, arrives at any fixed point in the orbit 90 s ahead of Picard, the commander of the other ship. What are the (a) period T 0 and (b) speed v 0 of the ships? At point P in Fig. 13-51, Picard fires an instantaneous burst in the forward direction, reducing his ship's speed by 1.00%. After this burst, he follows the elliptical orbit shown dashed in the figure. What are the (c) kinetic energy and (d) potential energy of his ship immediately after the burst? In Picard’s new elliptical orbit, what are (e) the total energy E, (f) the semi major axis a , and (g) the orbital period T ? (h) How much earlier than Igor will Picard return to P ? Figure 13-51 Problem 68.
GO Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of Fig. 13-51, at an altitude h of 400 km, Igor the commander of one of the ships, arrives at any fixed point in the orbit 90 s ahead of Picard, the commander of the other ship. What are the (a) period T 0 and (b) speed v 0 of the ships? At point P in Fig. 13-51, Picard fires an instantaneous burst in the forward direction, reducing his ship's speed by 1.00%. After this burst, he follows the elliptical orbit shown dashed in the figure. What are the (c) kinetic energy and (d) potential energy of his ship immediately after the burst? In Picard’s new elliptical orbit, what are (e) the total energy E, (f) the semi major axis a , and (g) the orbital period T ? (h) How much earlier than Igor will Picard return to P ? Figure 13-51 Problem 68.
GO Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of Fig. 13-51, at an altitude h of 400 km, Igor the commander of one of the ships, arrives at any fixed point in the orbit 90 s ahead of Picard, the commander of the other ship. What are the (a) period T0 and (b) speed
v
0 of the ships? At point P in Fig. 13-51, Picard fires an instantaneous burst in the forward direction, reducing his ship's speed by 1.00%. After this burst, he follows the elliptical orbit shown dashed in the figure. What are the (c) kinetic energy and (d) potential energy of his ship immediately after the burst? In Picard’s new elliptical orbit, what are (e) the total energy E, (f) the semi major axis a, and (g) the orbital period T? (h) How much earlier than Igor will Picard return to P?
A 11.8 L gas tank containing 3.90 moles of ideal
He gas at 26.0°C is placed inside a completely
evacuated insulated bell jar of volume 39.0 L .A
small hole in the tank allows the He to leak out into
the jar until the gas reaches a final equilibrium state
with no more leakage.
Part A
What is the change in entropy of this system due to the leaking of the gas?
■
ΜΕ ΑΣΦ
AS =
?
J/K
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Request Answer
Part B
Is the process reversible or irreversible?
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