A satellite, initially at rest in deep space, separates into two pieces, which move away from each other
One piece has a rest mass of 190 kg and moves away with a speed 0.280c, and the second piece moves in the opposite direction with a speed 0.600c. What is the rest mass of the second piece?
A) 88.7 kg
B) 79.6 kg
C) 73.9 kg
D) 68.8 kg
E) 52.7 kg
C
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An inductor has a current I(t) = (0.500
A) cos[(275 s-1)t] flowing through it. If the maximum emf across the inductor is equal to 0.500 V, what is the self-inductance of the inductor? A) 4.37 mH B) 3.64 mH C) 2.75 mH D) 0.73 mH E) 1.43 mH
The three phases of matter can exist together in equilibrium at the
A) critical point. B) triple point. C) melting point. D) boiling point. E) evaporation point.
The transition from single to multicellular life took over two billion years
Indicate whether the statement is true or false
A transverse periodic wave is represented by the equation y(z, t) = 2.0 cm sin(1,200 rad/s t - 20.0
z). Another transverse wave is represented by the equation y(z, t) = 2.0 cm sin(1,200 rad/s t - 20.0
z). What is the equation that represents the superposition of the two waves?
A. y(z, t) = 4.0 cm sin(1,200 rad/s t - 20.0
z)
B. y(x, t) = 4.0 cm sin(1,200 rad/s t) cos20.0x)
C. y(x, t) = +4.0 cm cos(1,200 rad/s) sin(20.0 x)
D. y(x, t) = +4.0 cm cos(1,200 rad/s) + (20.0x)