Constant Acceleration Kinematics: A car with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s2 when braking. If a car is initially traveling at 55 mi/h(a) how much time does it take the car to stop?(b) what is its stopping distance?
Fill in the blank(s) with the appropriate word(s).
(a) 4.9 s (b) 60 m
Physics & Space Science
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According to the quantum mechanical model of the hydrogen atom, if the orbital angular momentum quantum number is ?, there will be how many permitted magnetic quantum numbers?
A) ?/2 B) 3? C) 2? D) 2? - 1 E) 2? + 1
Physics & Space Science
When an ice cube in a glass of water melts, the water level
A) rises. B) falls. C) remains the same.
Physics & Space Science
Compared to a single lamp connected to a battery, two lamps connected in parallel to the same battery will draw
A) more current. B) less current. C) the same current.
Physics & Space Science
The process in which thermal energy flows by the mass movement of molecules from one place to another is known as
A) conduction. B) convection. C) radiation.
Physics & Space Science