How important is studying projectile to once life?
What will be an ideal response?
Answer: We study projectile motion because it is the simplest possible implementation of Newton’s laws. If we don’t understand what happens when the acceleration of a body is constant, then we’re going to have a very difficult time understanding what happens when it isn’t.
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A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is
a. 0.5 s. b. 2 s. c. 5 s. d. 10 s. e. not determinable.
A projectile is launched from ground level at an angle of 30.0° above horizontal with a speed of 10.0 m/s. If the projectile is moving over level ground, what is the maximum height above the ground that the projectile reaches?
A) 2.54 m B) 1.27 m C) 5.00 m D) 3.54 m E) 20.0 m
If the ground state energy level of an electron in a rigid box is 5.0 eV, what is the width of the box?
A) 2.3 × 10-11 m B) 7.3 × 10-20 m C) 2.7 × 10-10 m D) 1.0 × 10-10 m E) 9.1 × 10-21 m
A particle with __________ obeys the Pauli exclusion principle
Fill in the blank(s) with correct word