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The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at 16.3 m/s,
when the eagle swoops down, grabs the pigeon, and flies off. At the instant right before the attack, the eagle is flying toward the pigeon at an angle theta = 63.5 Degree below the horizontal, and a speed of 34.7 m/s.
What is the speed of the eagle immediately after it catches its prey?
What is the magnitude of the angle, measured from horizontal, at which the eagle is flying immediately after the strike?
If Superman really had x-ray vision at 0.1 nm wavelength and a 4 mm pupil diameter, at what altitude could he distinguish villains from heroes, assuming he needs to resolve points separated by 6 cm to do this?
The threshold of dark-adapted (isotopic) vision is 2.0 multiplied by10-11 W/m2 at a central wavelength of450 nm. If light with this intensity and wavelength enters the eye when the pupil is open to its maximum diameter of 8.5 mm, how many photons per..
A pendulum bob with mass of 3.0 kg is suspended from an ideal string a distance of 3.5 m from the ceiling. A 0.004 kg bullet is fired horizontally at a speed of 6.91x103 m/s and imbeds itself in the bob.
A photon, a packet of electromagnetic radiation, carries both energy and momentum. Consider a photon with a wavelength of 457 nm in vacuum. What is the momentum of the photon
A meterstick is at rest in an inertial frame S2. If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m above the floor. How long will it take the ball to hit the floor
A car is moving on a flat horizontal circular track of radius 120m. The speed of the car is constant, 15 m/s. The mass of the car is 1200kg. Ignore air resistance.
A 97.1-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.67 rad/s. Find the angular velocity of the platform with its load
The electric potential at a position located a distance of 21.3 mm from a positive point charge of 7.90×10-9C and 14.8 mm from a second point charge is 1.18 kV. Compute the value of the second charge.
a golfer hits a shot to a green that is elevated 2.80 m above the point where the ball is struck. the ball leaves the
Light from a helium-neon laser (?=633nm) is used to illuminate two narrow slits. What is the spacing (in mm) between the slits
In an aluminum pot, 0.15 kg of water at 100 degrees c boils away in four minutes. find the temperature at the aluminum-steel interface
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