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A 4.0 g string, 0.39 m long, is under tension. The string vibrates at 600 Hz in the third harmonic. The wavelength of the sound tone produced in the air near the string is closest to:
A) 0.35 m
B) 0.45 m
C) 0.57 m
D) 0.39 m
E) 0.51 m
Sunlight strikes a piece of crown glass at an angle of incidence of 30.0 degrees. Calculate the difference in the angle of refraction between a red (660.0 nm) and a blue (470.0 nm) ray
A crate of bananas with a mass of 50kg rest on a loading ramp that makes an angle theta = 30 degrees with the horizontal ground. What is the static friction force on the box to keep it from sliding
An Australian emu is running due east in a straight line at a speed of 12.5 m/s and slows down to a speed of 11.4 m/s in 7.3 s. (a) What is the direction of the bird's acceleration? north south east west.
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
A rocket of total mass 3180 kg is traveling in outer space with a velocity of 115 m/s toward the Sun. how much mass must be expelled
A crate is sliding down a ramp that is inclined at an angle of38.0o above the horizontal. Find the acceleration of the moving crate
The aorta carries blood away from the heart at a speed of about 39 cm/s and has a radius of approximately 1.0 cm. The aorta branches eventually into a large number of tiny capillaries that distribute the blood to the various body organs.
A 16 cm-diameter compressed-air tank is 70cm tall. The pressure at 30 degrees C is 130 atm. What is the number of moles in the tank
so hydrogen atoms have a thermal velocity of about 1000 m/s. How does the energy stored in the magnetic field compare with the kinetic energy in a given volume of space.
A galvanometer with a coil resistance of 9.27Ω and a full-scale current of 0.175 mA is used with a shunt resistor to make an ammeter. The ammeter registers a maximum current of 5.98 mA. Find the equivalent resistance of the ammeter.
You are designing a roller coaster for a new amusement park on the Moon. You envision a loop with a radius of 35 meters in your track. What speed at the top of the loop would a car need to have
An object moves uniformly around a circular path of radius 20.5 cm, making one complete revolution every 2.40 s. What is the translational speed of the object
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