Two fireworks explode at the same position on the 4th of July. A stationary observer notices that the time interval between the two events was 5.00 seconds. A second observer flies past the fireworks at a speed of 0.600 c. What value does she obtain when she measures the time interval between the two explosions?
a. 8.33 s
b. 6.25 s
c. 4.00 s
d. 3.00 s
e. 5.00 s
B
You might also like to view...
What do we mean by the critical density of the universe?
What will be an ideal response?
You throw a ball straight up. Compare the sign of the work done by gravity while the ball goes up with the sign of the work done by gravity while it goes down
A) Work up is -, and the work down is -. B) Work up is +, and the work down is +. C) Work up is -, and the work down is +. D) Work up is +, and the work down is -.
Complete and balance the following equations:
a. HNO3 + Ba(OH)2 ? ____________________. b. H3PO4 + CaCO3 ? _____________________.
How does a lenticular galaxy differ from a spiral galaxy?
A) It has no bulge. B) It has an elongated bulge resembling a bar more than a sphere. C) It is flatter in shape. D) It has no gas or dust. E) It has no spiral arms.