If your worldline is following the straightest possible path through spacetime, then
A) you will be weightless.
B) you will feel heavier than your normal weight.
C) you must be accelerating.
D) you must be traveling at constant velocity.
A
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Three identical 3.0-kg cubes are placed on a horizontal surface in contact with one another. The cubes are lined up from left to right and an 18-N force is applied to the left side of the left cube causing all three cubes to accelerate to the right. If the cubes are each subject to a frictional force of 3.0 N, what is the magnitude of the force exerted on the right cube by the middle cube in this
case? a. 18 N c. 12 N b. 6 N d. none of the above
A 1.00 X 10^3 kg sports car accelerates from rest to 25.0 m/s in 7.50 s. What is the average power output of the automobile engine?
a. 20.8 kW b. 30.3 kW c. 41.7 kW d. 52.4 kW
Compare how doubling the diameter of a mirror will affect both resolution and light gathering power
What will be an ideal response?
Based on our current Gregorian calendar, which of the following years is not a leap year?
A) 2000 B) 2004 C) 2008 D) 2012 E) All of the above are leap years.