What is the ratio of the pressure that a constant-volume gas thermometer registers at the boiling point of water to the pressure it registers at the freezing point?
A) 1.00
B) 1.24
C) 1.32
D) 1.37
E) 1.80
D
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In a Newton's rings apparatus, the interference effect observed between the rays occurs because of the path difference between
A) the top and bottom surfaces of the top piece of glass. B) the top and bottom surfaces of the bottom piece of glass. C) the top and bottom surfaces of the air between the pieces of glass. D) the top and bottom surfaces of the oil between the pieces of glass. E) the top surfaces between the top and bottom pieces of glass.
A projectile is shot from the edge of a vertical cliff 60.0 m above the ocean. It has a speed of 100 m/s and is fired at an angle of 35.0° below the horizontal. How far from the foot of the vertical cliff does the projectile hit the water?
A) 79.1 m B) 312 m C) 684 m D) 1084 m E) 540 m
A 1.15-kg grinding wheel 22.0 cm in diameter is spinning counterclockwise at a rate of 20.0 revolutions per second
When the power to the grinder is turned off, the grinding wheel slows with constant angular acceleration and takes 80.0 s to come to a rest. (a) What was the angular acceleration (in rad/s2 ) of the grinding wheel as it came to rest if we take a counterclockwise rotation as positive? (b) How many revolutions did the wheel make during the time it was coming to rest?
A mass is oscillating on a spring with a period of 4.60 s. At t = 0 s the mass has zero speed and is at x = 8.30 cm
(a) What is the value of t the first time after t = 0 s that that the mass is at x = 4.15 cm? (b) What is its acceleration at t = 2.50 s?