Physics Kinetic Theory Of Gases Level: Misc Level
What is the volume of a gas at 275 mm if it occupied 750 mL at 1000 mm Hg?
Physics Waves And Oscillations Level: Misc Level
A 15.0-m rope is pulled taut with a tension of 140 N. It takes 0.545 s for a wave to propagate along the rope. What is the mass of the rope?
a.1.67 kg
b.2.77 kg
c. 5.09 kg
d.3.19 kg
Physics Waves And Oscillations Level: Misc Level
A 6.00- m length of rope has a mass of 700 g. If is pulled taught with a force of 100 N. What is the speed of waves on the rope?
a.29.3 m/s
b.11.7 m/s
c. 42.0 m/s
d.3.42 m/s
Physics Waves And Oscillations Level: Misc Level
A hormonic wave travels with a speed of 200 m/s and has a wavelength of 0.800 m. What is the period of the wave?
a. 40.0 Hz
b.125 Hz
c.80.0 Hz
d.250 Hz
Physics Waves And Oscillations Level: Misc Level
A harmonic wave has a wavelength of 2.0 m and a frequency of 5.0 Hz. What is the speed of the wave?
a. 10 m/s
b.0.4 m/s
c.0.10 m/s
d.2.5 m/s
Physics Work,Power & Energy Level: Misc Level
How much work is required to stretch a spring 25.2 cm if its force constant is 12.3 N/m?
a.0.391 J
b.3.10 J
c. 1.05 J
d.0.381 J
Physics Waves And Oscillations Level: Misc Level
A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a freqency of 2.55 Hz. What is the maximum speed of the needle?
a.3.18 cm/s
b.20.3 cm/s
c.10.1 cm/s
d.6.36 cm/s
Physics Waves And Oscillations Level: Misc Level
In simple harmonic motion, the speed is greatest at that point in the cycle when;
a.The magnitude of the acceleration is a maximum.
b.The displacement is a maximum.
c.The magnitude of the acceleration is a minimum.
d. The potential energy is a maximum.
Physics Waves And Oscillations Level: Misc Level
The position of a mass that is oscillating on a spring is given by x= (18.3 cm) cos[2.35 s to power of (-1))t]. What is the frequency of this motion?
a. 0.426 Hz
b.1.34 Hz
c. 0.128 Hz
d. 0.374 Hz
Physics Waves And Oscillations Level: Misc Level
The position of a mass that is oscillating on a spring is given by x =(18.3 cm) cos[ (2.35 s to power of (-1)) t]. What is the freqency of this motion?
a.0.426 Hz
b.1.34 Hz
c.0.128 Hz
d.0.374 Hz
Physics Waves And Oscillations Level: Misc Level
If your heart is beating at 76.0 beats per minute, what is the freqency of your heart,s oscillations?
a.4560 Hz
b.1450 Hz
c.3.98 Hz
d.1.27 Hz
Physics Waves And Oscillations Level: Misc Level
The quartz crystal in a digital watch has a frequency of 32.8 kHz. What is its period of oscillation?
a.3.05 multiply 10 to power of (expont) s
b.9.58 multply 10 to power of (exponent) s
c. 1.91 multiply 10 to power of (exponent) s
d.9.71 multiply 10 to power of (exponent) s
Physics Gravitation Level: Misc Level
The highest tides occur when;
a.The Sun and the Moon are on the same side of Earth.
b. The Sun and the Moon are on opposite side of Earth.
c. The Sun , Moon, and Earth form a right-angled triangle with Earth at the 90 degree vertex.
d,The Sun, Moon, and Earth form a right -angled triangle with the Moon at the 90 degree vertex.
Physics Gravitation Level: Misc Level
What is the ratio of potential energy to kinetic energy for a comet that has just enough energy to escape from the Sun,s gravitational field?
a.1/2
b.1
c.2
d.-1
Physics Gravitation Level: Misc Level
Three masses are located are follows; a 3.0-kg mass is at the origin, a 4.5-kg mass at (0.0 m, 4.0 m), and a 2.5-kg mass at (3.0 m,0.0 m). What is the gravitational energy of the system of masses? G=6.67X10 to power (-11) N x m squared.
a. -3.8x10 to power of (-10) J
b.-3.9x10 to powerof (-10)J
c.-54x10 to power of (-10)J
d.-3.2x10 to power of (-10)J
