In a reflecting telescope, the secondary mirror causes a hole in the center of the image.
Answer the following statement true (T) or false (F)
False
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Suppose that event A is the origin event in the Home Frame and that event B occurs at t = 1 ns and x = 10 ns in that frame. What would be the minimum x-velocity ? that an Other Frame would have to have relative to the Home Frame if B occurred first in that frame?
A. 10 B. 1 C. 0.60 D. 0.40 E. 0.10 F. B can’t occur first.
The fate or future of the universe depends only on the total number of galaxies and quasars
Indicate whether the statement is true or false
A charge of 80 nC is uniformly distributed along the x axis from x = 0 to x = 2.0 m. Determine the magnitude of the electric field at a point on the x axis with x = 8.0 m
a. 30 N/C b. 15 N/C c. 48 N/C d. 90 N/C e. 60 N/C
A 2.0-kg projectile moves from its initial position to a point that is displaced 20 m horizontally and 15 m above its initial position. How much work is done by the gravitational force on the projectile?
a. +0.29 kJ b. -0.29 kJ c. +30 J d. -30 J e. -50 J