Projectile Motion: A hunter points a rifle horizontally and holds it 3.30 m above the ground. The bullet leaves the barrel at 325 m/s and experiences no significant air resistance. The acceleration due to gravity at this location is 9.80 m/s2.(a) How long does it take for the bullet to strike the ground?(b) How far horizontally does it travel?
What will be an ideal response?
(a) 0.821 s (b) 267 m
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When we say that a liquid has a high viscosity, we mean that it
A) is runny like water. B) flows slowly like honey. C) is very dark in color. D) is very light in color. E) conducts electricity.
A 480-kg car moving at 14.4 m/s hits from behind a 570-kg car moving at 13.3 m/s in the same direction
If the new speed of the heavier car is 14.0 m/s, what is the speed of the lighter car after the collision, assuming that any unbalanced forces on the system are negligibly small? A) 13.6 m/s B) 10.5 m/s C) 19.9 m/s D) 5.24 m/s
The oldest era in the Phanerozoic eon is the ______________ era
Fill in the blank(s) with correct word
A vertical wire carries a current straight up in a region where the magnetic field vector points due north. What is the direction of the resulting force on this current?
A) down B) north C) south D) east E) west