A certain car can accelerate from 0 to 100 km/hr in 6.0 seconds. What is the average acceleration of that car in m/s2?
What will be an ideal response?
4.6 m/s2
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A hobbyist launches a projectile from ground level on a horizontal plain. It reaches a maximum height of 72.3 m and lands 111 m from the launch point, with no appreciable air resistance. What was the angle of launch if g = 9.80 m/s2?
A) 69.0° B) 67.4° C) 22.6° D) 44.8°
How far does a beam of light travel in one full year?
A) 80 × 1012 m B) 95 × 1014 m C) 30 × 108 m D) 20 × 1015 m E) 36 × 1016 m
Draw and label a simple diagram of the following: a. a refracting telescope b. a reflecting telescope
What will be an ideal response?
What shows directly that there is a nuclear force?
a. The fact that electrons congregate around the nucleus. b. The fact that nuclei can lose nucleons. c. The relatively large mass of protons and neutrons compared to the electrons. d. The fact that electrons can change shells around the nucleus. e. The fact that so many nuclei are stable and hold together despite the repulsion between their positive charges.