#1 0.19 mW 0.14 mW 0.077 mW 0.31 mW 0.25 mW #2 A B C D E #3 A force of 17 N is a

Question

#1



0.19 mW
0.14 mW
0.077 mW
0.31 mW
0.25 mW

#2



A
B
C
D
E

#3 A force of 17 N is applied to the end of a 0.63 torque wrench at an angle 45 A sealed 62 m3 tank is filled with 9000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. The gas is heated to a final temperature of 390 K. The atomic mass of oxygen is 16.0 g/mol. The mass density of the oxygen gas, in SI units, is closest to (LO7): A 2.0 m conductor is formed into a square and placed in the horizontal xy-plane. A magnetic field is oriented 30.0 degree above the horizontal with a strength of 1.0 T. What is the magnetic flux through the conductor? (LO4) 022 T middot m2 0.12 T middot m2 025 T middot m2 2.0TTm2 The components of vector A are given as follows (LO1): Ax=+7.6 Ay = -6.4 The magnitude of A is closest to: Which of the following ideas is true about projectile motion with no air drag? (LO1) The trajectory will depend on the object's mass as well as its initial velocity and launch angle. The acceleration is +g when the object is rising and -g when falling. The velocity of the object is zero at the point of maxi mu m elevation. v2x + v2y = constant. The horizontal motion is independent of the vertical motion. Find the energy (in eV) of an optical photon of frequency 6.43 times 10 14 Hz. (LO5) A 7.55 times 10 14Hz electromagnetic wave propagates in carbon tetrachloride with a speed of 2.05 times 10 8 m/s. The wavelength of the wave in carbon tetrachloride is closest to (LO5): Suppose a van de Graaff generator builds a negative static charge/ and a grounded conductor is placed near enough to it so that a 7.0 mu C of negative charge arcs to the conductor. Calculate the number of electrons that are transferred. (LO3) 4.38 x 1013 43.8 1.12 times 10-18 7.0 An aluminum rod is 10.0 cm long and a steel rod is 80.0 cm long when born rods are at a temperature of 15 degree C. Both rods have the same diameter. The rods are joined end-to-end to form a rod 60.0 cm long. The coefficients of linear expansion of aluminum and steel are 2.4 x 10-5 K-1 and 1.2 times 10-5 K-1, respectively. The temperature is raised to 90Degree C. The increase in the length of the joined rod, in mm, is closest to (LO7): A circular conducting loop with a radius of 0.50 m and a small gap filled with a 10.0 Ohm resistor is oriented in the xy-plane. If a magnetic field of 1.0 T, making an angle of 30 degree with the Z-axis, increases to 10.0 T, in 4.0 s, what is the magnitude of the current that will be caused to flow in the conductor? (LO4) The correct ground state electron configuration of boron (Z = 5) is (LO6): 1s22s22p 1s22p23s 1s21p22s 1s22p3 1s22s2p3 The diameter of an atom is 1.4 times 10-10 m and the diameter of its nucleus is 1.0 times 10-14 m. What fraction of the atom's volume is occupied by mass? (LO8) 2.6 times 10-17 3.6 times 10-13 7.1 x 10-5 5.1 x 10-9 In a head-on collision, an alpha particle (Z = 2) of energy 8.20 MeV bounces straight back from a nucleus of charge 80.0 e. How close were the centers of the objects at closest approach? (LO8) 2.81 times 10-14m 2.17 times 10-14m 3.39 times 10-12m 6.56 times 10-15m

Explanation / Answer

1.       B

2.       C

3.       D

4.       D

5.       A

6.       C

7.       D

8.       B

9.       B

10.   C

11.   A

12.   A

13.   A

14.   C

15.   D

16.   A

17.   C

18.   D

19.   A

20.   A

21.   A

22.   B

23.   D

24.   C

25.   C

26.   B

27.   C

28.   D

29.   A

30.   D

31.   D

32.   A

33.   A

34.   B

35.   D

36.   D

37.   B

38.   C

39.   D

40.   A

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