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Consider this reaction:
n + N → He + ?
(a) What is the missing daughter nuclei in the reaction?
(b) How many neutrinos are released by this reaction?
Consider two uniform solid spheres where one has twice the mass and twice the
diameter of the other. The ratio of the larger moment of inertia to that of the smaller
moment of inertia is
A) 10.
B) 8.
C) 2.
D) 6.
E) 4.
A container is filled with a mixture of helium and oxygen gases. A thermometer in the
container indicates that the temperature is 22.C. Which gas molecules have the greater
average speed?
A) The oxygen molecules do because they are diatomic.
B) The helium molecules do because they are monatomic.
C) The oxygen molecules do because they are more massive.
D) It is the same for both because the temperatures are the same.
E) The helium molecules do because they are less massive.
FIGURE 5-1
Which of the graphs in Fig. 5-1 illustrates Hooke's Law?
A) graph a
B) graph b
C) graph c
D) graph d
E) none of the above
Water flows out of a large reservoir through a pipe that opens to the atmosphere 5.70 m
below the level of the water in the reservoir. What is the speed of the water as it comes
out of the pipe?
A) 1.72 m/s
B) 7.47 m/s
C) 55.8 m/s
D) 10.6 m/s
E) 27.9 m/s
A 1 pF capacitor is connected in parallel with a 2 pF capacitor, the parallel combination
then being connected in series with a 3 pF capacitor. The resulting combination is then
connected across a battery.
(a) Which capacitor has the greatest charge?
(b) Which capacitor has the greatest voltage?
All of the following are scalars, except
A) mass.
B) force.
C) temperature.
D) distance.
E) time.
A 12 mF capacitor is connected in series with a 4 mF capacitor, the combination being
connected across a 6 V power supply. The charge on the 12 mF capacitor is
A) 24 mC.
B) 12 mC.
C) 18 mC.
D) 72 mC.
E) 36 mC.
What is the density of the nucleus of 90Sr?
A) greater than 3 x 1020 kg/m3
B) 90 kg/m3
C) 2.1 x 1019 kg/m3
D) 2.0 x 1015 kg/m3
E) 2.3 x 1017 kg/m3
A proton is projected with a velocity of 7.0 103 m/s into a magnetic field of 0.60 T
perpendicular to the motion of the proton. What is the force that acts on the proton?
A) 0 N
B) 3.4 x 10-16 N
C) 4.2 x 10-16 N
D) 13 x 10-16 N
E) 6.7 x 10-16 N
Suppose that several projectiles are fired upward. Which one will be in the air longest?
(R is range, h is highest elevation, and t is time of flight.)
A) The one with the farthest range, R
B) The one with the highest maximum elevation, h
C) The one for which the product of (R)(t)(h) is maximum
D) The one with the greatest initial velocity
E) The one with the minimum elevation, h
A 3.0 cm tall statue is 48. cm in front of a biconvex lens (focal length 20. cm).
(a) Is the image real or virtual?
(b) How far is the image from the lens?
(c) Is the image upright or inverted?
(d) How high is the image?
An ideal polarizer is placed in a beam of unpolarized light and the intensity of the
transmitted light is 1.000. A second ideal polarizer is placed in the beam with its
referred direction rotated 40 to that of the first polarizer. What is the intensity of the
beam after it has passed through both polarizers?
A) 0.7661
B) 0.4131
C) 0.5868
D) 0.6431
E) 0.5000
A ray of light traveling in water (n = 1.33) hits a glass surface (n = 1.50). At what angle,
with the surface, must the incident ray be in order that the polarization of the reflected
ray is the greatest?
A) 53.1
B) 33.7
C) 36.9
D) 41.6
E) 48.4
Cosmic rays react with what atmospheric atoms to produce carbon-14?
A) oxygen
B) hydrogen
C) nitrogen
D) carbon-12
E) helium
When the mass of a simple pendulum is tripled, the time required for one complete
vibration
A) increases by a factor of 3.
B) does not change.
C) decreases to one-third of its original value.
D) decreases to 3/4 of its original value.
E) increases to 4/3 of its original value.
FIGURE 16-2
Three capacitors C1, C2, and C3are connected to a battery as shown in Fig. 16-2. The
three capacitors have equal capacitances. Which capacitor stores the most potential
energy?
A) C3
B) C2
C) C1
D) C2or C3. They store the same amount of energy
E) All three capacitors store the same amount of energy.
A proton strikes an Oxygen-18 nucleus producing Fluorine-18 and another particle.
What other particle is produced by this nuclear reaction?
A) a neutron
B) an alpha particle
C) a β- particle
D) a β+ particle
Electrons are emitted from a surface when light of wavelength 500 nm is shone on the
surface but electrons are not emitted for longer wavelengths of light. The work function
of the surface is
A) 5.0 eV.
B) 0.60 eV.
C) 2.5 eV.
D) 4.0 eV.
E) 0.40 eV.
A small bomb, of mass 10. kg, is moving toward the North with a velocity of 5.0 m/s. It
explodes into three fragments: a 5.0 kg fragment moving West with a speed of 8.0 m/s;
a 4.0 kg fragment moving East with a speed of 10. m/s; and a third fragment with a
mass of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)
A) 40 m/s North
B) 5.0 m/s South
C) 50.m/s North
D) zero
E) 4.0 m/s North
Two spaceships are traveling through space at 0.6c relative to the Earth. If the ships are
headed directly toward each other, what is their approach velocity, as measured by a
person on either craft?
A) 1.2c
B) c
C) 0.6c
D) 0
E) none of the above
What is the Brewster's angle for light traveling in vacuum and reflecting off a piece of
glass of index of refraction 1.52?
A) 48.9
B) 33.3
C) 48.1
D) 56.7
E) 41.1
Mary is 3.00 meters from the center of a merry-go-round. Her tangential speed is 1.88
m/s.
(a) What is her angular speed in rad/s?
(b) What is her acceleration while her speed remains 1.88 m/s?
A 4.0 μF and a 6.0 μF capacitor are connected in series across an 8.0-V DC source.
What is the charge on the 6.0 μF capacitor?
A) 2.0 μC
B) 4.0 μC
C) 12 μC
D) 25 μC
E) 19 μC
Six kilograms on Earth has what mass on the moon?
A) 1. pound
B) 6. kg
C) 36. kg
D) 1/6 kg
E) 1. kg
When you are scuba diving, the pressure on your face plate
A) is independent of both depth and orientation.
B) will be greatest when you are facing downward.
C) depends only on your depth, and not on how you are oriented.
D) will be greatest when you are facing upward.
From a knowledge of the size and mass of a nucleus, one can estimate the density of
nuclear material. Such a calculation shows that the density of nuclear matter is on the
order of magnitude of
A) 1011 kg/m3.
B) 1017 kg/m3.
C) 104 kg/m3.
D) 108 kg/m3.
E) 102 kg/m3.
A negative magnification for a mirror means
A) the image is inverted, and the mirror is concave.
B) the image is inverted, and the mirror is convex.
C) the image is inverted, and the mirror may be concave or convex.
D) the image is upright, and the mirror may be concave or convex.
E) the image is upright, and the mirror is convex.
A factory siren indicating the end of a shift has a frequency of 80 Hz. What frequency is
perceived by the occupant of a car traveling towards the factory at 30 m/s? The speed of
sound in air is 343 m/s.
A) 83 Hz
B) 85 Hz
C) 87 Hz
D) 89 Hz
E) 91 Hz
An optic fiber is made of clear plastic with index of refraction of 1.50. For what angle
of incidence will light remain within the plastic "guide"?
A) >21.1
B) >23.4
C) >38.3
D) >40.3
E) >41.8
A car is traveling along a highway at 65 mph. What is the linear speed of the top of the
tires?
An airplane is pointed in the NE direction and is moving 71. m/s with respect to the air.
The jetstream (moving air) carries the plane 30. m/s toward the East. What is the
velocity of the plane relative to the ground?
A hollow cylinder and a solid cylinder are constructed so they have the same mass and
radius. Which cylinder has the larger moment of inertia?
A family goes on vacation for one week, but forgets to turn off an electric fan that
consumes electricity at the rate of 200 watts. If the cost of electricity is $0.120/kW-h,
how much does it cost to run the fan?
FIGURE 23-5
At an amusement park you stand between two plane mirrors, which intersect at an angle
of 60. You are positioned at point P in Fig. 23-5. You are 1.0 m from the nearest mirror,
and 15 above it. What is the distance from you to the nearest image and to the second
nearest image?
What is the energy, in eV, of a photon of wavelength 550. nm?
State the Pauli Exclusion principle.
A polar bear of mass 200. kg stands on an ice floe 100. cm thick. What is the minimum
area of the floe that will just support the bear in saltwater of specific gravity 1.03? The
specific gravity of ice is 0.98.
Identify with an H or L to which family, hadron or lepton, each of the following belong:
proton; neutrino; pion; tauon.
State Charles's law.
FIGURE 3-6
Given the three vectors in Fig. 3-6, determine the vector sum + + .
A cylinder, of radius 8.0 cm, rolls 20. cm in 5.0 s. Through what angular displacement
does the cylinder move in this time?
Define linear momentum.
How fast must something be traveling if its mass increases by 10%?
Express the result of the following calculation, in scientific notation, to the proper
number of significant figures: ((395600.1)/(6.72)) + 19.
