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Question: Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 26.0 m/s. Both screech, the first one emitting a frequency of 3300 Hz and the second one emitting a frequency of 3800 Hz. What frequencies (in Hz) do they receive if the speed of sound is 330 m/s?
first eagle ______ Hz
second eagle ________ Hz
A motorist drivesnorth for 35.0 min at 85.0 km/h and then stops for 15.0 min. Hethen continues north,traveling 130 km in 2.00 h. what is his total displacement? what is his average velocity
Explanation of net force on an object with zero friction on an inclined plane
A 0.200 kg projectile is fired with a velocity of +745m/s at a 2.0kg wooden block that rests on a frictionless table. The velocity of the block, immediately after the projectile passes through it, is +45 m/s. Find out the velocity with which the p..
In a diffraction experiment a point (pinhole) source of wavelength 600 nm is to be used. Determine whether Fresnel or Fraunhofer diffraction applies
A lump of platinum is extruded through a die with diameter of 0.1cm resulting in a cylindrical shape and a net resistance of 11 Ohms across the device. What will the new resistance across the material
In one hand you hold a 0.11 kilogram apple, in the other hand a 0.24 kilogram orange. Find the magnitude of the force of gravity that the orange exerts on the apple
The charges and coordinates of two charged particles held fixed in the xy plane are: q1=6.00 ?C, x1=6.700 cm, y1=4.600 cm, Find the direction and magnitude of the electrostatic force on q2
A harmonic wave on a string with mass per unit length 0.065 kg/m and a tension of 71.0 N has an amplitude of 6.9 cm. find the average power propagated along the string
A light spring with a spring constant of 80.0 N/m rests vertically on a table. A 2g balloon is filled with helium (0°C and 1 atm pressure) to a volume of 5.00 m3 and connected to spring, causing the spring to stretch and expand. How much does the ..
A diffraction grating with d = 2000 nanometers is used with a mercury discharge tube. Find the distance from the slit to the first-order image for the blue-green wavelength of mercury
A ladder of length L = 2.4 m and mass m = 14 kg rests on a floor with coefficient of static friction ?s = 0.56. Assume the wall is frictionless. find the normal force the floor exerts on the ladder
In a game of pool, ball A is moving with a velocity v0= v0i when it strikes balls B and C, which are at rest side by side. Assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the final velocity ..
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